SRI LIT Update-2022

SRI Instruments Documentation > GC and data system literature > manual sections, product descriptions, specifications, application notes & papers.

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GC Innovations Product Descriptions (Color)
Miniature hydrogen generator (1.5MB) This sales flyer shows the minature H2-100mini hydrogen generator	Download
310MM Cannabis and Hemp Testing GC Sales Flyer (361.8KB) This one page sales flyer highlights the main features of the 310MM Cannabis and Hemp Testing GC.	Download
2022 Pricelist in pdf format (263.0KB)	Download
310MM Edibles Cannabis and Hemp Gas Chromatograph (7.7MB) This document explains how the 310MM Edibles Cannabis and Hemp Gas Chromatograph functions to make testing cannabinoids in MCT/Olive oils, as well as flower, simpler and less time consuming.	Download
2022 Pricelist in Excel xls format in a zip file (66.8KB)	Download
Greenhouse Gas GC 456KB (456KB) Brief overview of the Greenhouse Gas GC	Download
10 and 20 position GreenhouseGas vial autosamplers (6.8MB) Instructions for the 10 and 20 position gas vial autosamplers used with Greenhouse Gas samples	Download
EPA Method 25 ( oxidize/reduce ) GC configuration (11.0MB) This GC converts all the hydrocarbons in the sample ( plus CO and CO2 ) to methane for an accurate carbon count regardless of the hydrocarbon identity. It is a preferred way of measuring air emissions	Download
Ultra Compact Model 110 GC for chlorinated VOCs at ppb level (549.0KB) This document showcases SRI's smallest GC which in this case is configured to detect chlorinated VOCs at the ppb level.	Download
EPA Method 16A GC configuration ( Total Sulfur as SO2 ) (400.2KB) This doc explains the Method 16A GC configuration for measuring total sulfur by converting it to SO2 and then measuring the SO2 with a FPD detector.	Download
Environmental Testing Solutions (781KB) GCs for environmental testing (e.g., BTEX+)	Download
Capillary FID GC 641.6KB) Low-cost GC perfect for hydrocarbon analysis	Download
Model 88 miniature gasless Methane/non-Methane GC (1.2MB) This document shows the Model 88 miniature gasless GC for methane /non-Methane testing It has a built in hydrogen generator and air compressor > so no gas is needed !	Download
Model 310 Educational GC Family (1.5MB) Overview of our educational FID and TCD GCs, with "Gas-less" options.	Download
Mudlogging GC (620.6KB) A portable, rugged, low-cost GC for mudlogging. Available in rack mount chassis.	Download
Multiple Gas Analyzer #1 GC (453.7KB) Brief overview of the MG #1 configuration. For more information, read the document on the MG #1 GC configuration in the Preconfigured GC Systems section.	Download
Sulfur in Natural Gas GC (94.0KB) GC used to detect sulfur in natural gas.	Download
Model 30 TCD Mini GC A “Toy” for school kids link available if U R really serious but then just might be suitable for budding phD “Rocket Scientists” starting their “learning curve” “ Beyond “even” my “pay scale !“ (467.4KB) Very low cost, highly portable, mini GC with a packed column (MS-5A) and a TCD detector . . . All for just ~AUD6000 > to YOU ! BUT Be-A-WARE ! of the limitations ! YOU’ll (perhaps) learn from THE experience ! > the hard way ! . . . if need be ?	ASK for that link ? mini GC

Sub Menus (here)		*& then > links Direct to SRI*
Innovations Preconfigured SYS H2 Gens GC Detectors GC Injectors	Quick Start Instructions PeakSimple OP S’ware Cobra Auto-Injectors MudLogger GCs	Valves GC Accessories Papers AppNotes Maintenance	Cannabis & Hemp Approvals Certs Warranty Schematics

CT SRI LITERATURE Update 2022

GC Injectors
Column Installation (on column) (979.4KB)	Download
Column Installation (heated injector) (1,012.3KB)	Download
TOGA Permeation Tube Operation (847.5KB)	Download
Thermal Desorber (419.7KB)	Download
NPD Equipment Summary (218.4KB)	Download
Purge and Trap part 1 (217.8KB)	Download
Purge and Trap part 2 (302.9KB)	Download
Heated Static Headspace Injector (221.3KB)	Download
PTV - Programmable Temperature Vaporization (748.5KB)	Download
On-Column PTV Injector (OCPTV) (259.4KB)	Download
SPME Injection (198.7KB)	Download
8640 Integrated Autosampler (306.8KB)	Download
5030 Autosampler Retrofit (49.3KB)	Download
5030 Autosampler Relay Board Installation (119.8KB

Preconfigured GC Systems ( > “real life” systems ) . . . “Trace Gas Analysis s is an “art form “
Ethylene Oxide Monitoring GC System (920.9KB)	Download
Oxygenates and Aromatics in Gasoline (729.6KB) This document describes a GC configuration which measures the oxygenates ( methanol, ethanol etc ) in gasoline similar to ASTM 4815, and also measures Aromatics in gasoline ( Benzene, Toluene etc ) similar to ASTM 3606 but simplified due to SRI's unique ASD ( Aromatic Selective Detector ).	Download
ASTM 4815 Oxygenates in Gasoline GC operation (3.4MB) This document explains the operation of the SRI GC configured for ASTM 4815.	Download
Environmental/BTEX GCs (442.0KB)	Download
Method 16B GC (2.6MB)	Download
Educational TCD GC (166.2KB)	Download
Multiple Gas Analyzer #1 GC (MG#1) (424.9KB)	Download
Multiple Gas Analyzer #2 GC (MG#2) (674.2KB)	Download
Multiple Gas Analyzer #3 GC (MG#3) (2.2MB)	Download
Multiple Gas Analyzer #3 + Sulfur GC (1.2MB)	Download
MultipleGas#5 operating instructions (8.2MB) This document was updated October 2022 to reflect recent improvements to the MG5 GC configuration	Download
Typical MG5 chromatograms using H2 and Argon carrier gas (1.6MB) These chromatograms compare the peaks using H2 also Argon carrier gas.	Download
*Diagnosing the Thermocouple out of Range Alarm (TORA)* https://www.youtube.com/watch?v=IV_dqO0Zf1E - *> Check ALLM324 Chips on Front Display PCB, All phone jack connections or for “broken” thermocouples > then call SRI !?*
MultipleGas#5 Reproducibility Test (1.1MB) These chromatogram show the reproducibility of methane and CO at 1% each on the MG5 GC	Download

Approvals, Certifications, Forms, and Warranty USA Regulations here ! > Be-a-Ware ! >Due Diligence in Australia required !
SRI W-9 Form signed in 2021 (604.0KB)	Download
US Customs Form 3311 (885.0KB) his form should accompany any shipment of SRI equipment back to the USA from abroad.	Download
Importers Declaration for support Form3311 for return of US goods (566.8KB) This form is sometimes needed along with Form 3311 when returning a GC to SRI from out of the USA.	Download
NAFTA Certification of Origin (650.1KB)	Download
Exemptions allowed for CE/ROHS marking of products for R&D use (4.6MB) These documents show that SRI Gas Chromatographs sold for R&D purposes in the European Union are not subject to the requirements of the Low Voltage and Electromagnetic Compatibility rules which govern consumer appliances ( the CE and ROHS marks ).	Download
Model 510 Standalone Methanizer CE tests (2.2MB)	Download
TUV Factory Inspection Report November2020 (3.9MB) This shows compliance with TUV who issues our NRTL ( UL and CSA equivilent ) and GC certifications.	Download
Declaration of Conformity, and other certificates (274.7KB) Click here to see our TUV Certification	Download
Test Report EM (673.3KB)	Download
EPA Pams Report (8.2MB) This document was produced by the EPA after extensive testing of the SRI ( and other brands ) GCs for air pollutants in the 1ppb range.	Download
Privacy Policy (140.2KB)	Download
UL, CSA and GS certificates from TUV 11-18-2019 (1.1MB) These two certification documents ( in one file ) show SRI products are allowed to display the TUV NRTL ( UL and CSA equvalents ) and the European GS mark.	Download
TUV CDF 4-13-2018 (101.1KB) This is the CDF for SRI products approved by TUV dated 4-13-2018	Download
TUV certification checklist (487.6KB)	Download
TUV 61010 test (3.5MB)	Download
Workman's Comp Insurance Certificate (861.8KB) This document shows our Workman's Comp Insurance Policy	Download
General and Product Liability Insurance Policy (21.2KB) This document shows our General and Product Liability Insurance policy	Download
Resale certficate for SRI (680.4KB) This is the reasale certficate for Scientific Repair Inc. SRI Instruments EIN 95-4121838	Download
SRI Warranty (41.4KB) *This is SRI's warranty. ( also applies in Australi!a ! )*	Download

Valves
MultipleGas#5 Valve diagram (226.8KB) This diagram is what is printed on the MG5 valve oven's lid	Download
Multiple Gas Analyzer #3 Valve Diagram, with on-column injection modification (139.0KB)	Download
Valve Diagram Collection (6.3MB) This document contains a selection of 10 port gas sampling valve diagrams, plus one and dual valve blank diagrams so you can configure your own valve plumbing. Also included is a table of tube volumes for different ID tubing which is helpful when calculating how much tubing to cut when making or replacing the loop.	Download
Gas Sampling Valve Diagram, Single (46.2KB)	Download
Gas Sampling Valve Diagram, Dual (91.9KB)	Download
Gas Sampling Valve Diagram, Triple (104.5KB)	Download
Valco 22 Port 10 Stream Selector Valve (720.0KB)	Download
Valco Actuator Manual (898.0KB) Manufacturer's manual of the Valco Actuator	Download
Valco Actuator Connections (208.5KB)	Download
Gas Sampling Valve Installation, 8610C (9.4MB)	Download
Replacing The Circuit Board Inside Electric Valve Actuator (913.1KB)	Download
Installation of 24volt DC Valco Valve Actuators (928.7KB) This document explains some of the difference in the mounting of the newer 24volt actuator compared to the older style actuators.	Download
Valco Universal Actuator Manual 2-27-2019 (405.1KB) Thiks is Valco's manual for the new stepper motor type valve actuators we use in SRI GCs for 2 and 10 position valves.	Download
Supplemental power supply for AFP valves (831.4KB) This document describes the installation of a supplemental power supply for AFP valves.	Download
ASD valve actuator manual (1.6MB) his document from ASD describes the operation of the ASD electric valve actuator.	Download
Gas Sampling Valve Types May 2019 (836.0KB) This document shows the various different gas sampling valves and actuators used in SRI GCs.	Download
AFP Valve/Actuator Diagram August 2019 (1.6MB) This document shows the current AFP valve used in some SRI GCs	Download
AFP Actuator Board types and wire connections January 2022 (3.4MB) ard revisions and wire connections for the AFP valves used by SRI	Download
Replacing the circuit board in AFP valves (1.5MB) This document shows how to replace the circuit board in AFP gas sampling valves	Download
AFP Valve Head Specs (822.7KB) This doc shows the AFP valve head with temperature limits, materials of construction etc.	Download
Greenhouse Gas GC 10 vial Autosampler (3.9MB) This document explains how to insall the 10 vial autosampler	Download
Silicone Loop Tubing for On-line liquid sampling (3.3MB) This document explains how to install and use a silicone tube loop which is useful for measuing many molecules in a water matrix.	Download

Quick Start instructions
Model 333 Data System Quick Start (947KB)	Download
Model 302 Data System Quick Start (795KB)	Download
GC Quick Start (856KB)	Download
Model 30 Mini GC Quick Start (1.8MB)	Download
Model 203 Data System Quick Start (449KB)	Download
Model 202 Data System Quick Start (483KB))	Download
Sulfur in Natural Gas GC Quick Start (1.1MB)	Download

ALL Current SRI GC PDF Files > ~Sept22

Cannabis and Hemp USA Regulations here ! Be-a-Ware ! Due Diligence in Australia IS required ! for Licensed R&D Only ! ALL until “we” ALL get OUR Act together ! . . . legalities DO apply !
310MM Cannabis and Hemp GC Configurations (447.6KB) General information on SRI's two 310MM Cannabis and Hemp GC Configurations for testing cannabinoid potency, terpenes, residual solvents, and edible cannabis products.	Download
Cannabis and Hemp Potency Testing (THC, CBD, CBN) (1.4MB) The procedure for cannabis and hemp potency analysis (e.g., THC, CBD, CBN ...) in cannabis flower.	Download
Basic Sample Preparation for Edibles Cannabis Testing (1.2MB) Basic sample preparation of edible cannabis and hemp enfused products for potency testing (CBD, THC, CBN).	Download
All-In-One Cannabis Potency and Terpene Analysis (552.4KB) Concurrent analysis for potency and terpene profiles in cannabis.	Download
Terpenes in cannabis analysis (2.6MB) Analysis of terpene profile	Download
Advanced Edible Cannabis Sample Preparation (1.9MB) A more advanced and thorough sample preparation of cannabis infused edible products. Following this procedure can help preserve your column, and is recommended for certain infusions.	Download
Calibrating six cannabinoids in CBD standard (758.6KB) Method to calibrate 6 major cannabinoids with just a CBD standard	Download
Calibration of residual solvents (butane) (170.5KB) Explaination on how to calibrate butane for residual solvent analysis	Download
THC-A vs. d9-THC Measurement (914.6KB) Procedure to anaylze THC-A and other acid forms of cannabinoids (e.g., CBD-A, CBN-A...) on a gas chromatograph	Download
Simple Cannabis Potency Testing (5.2MB) Article written to explain the ease of testing cannabinoids on the SRI Gas Chromatograph	Download
Residual Solvent Calibration: Ethanol and Butane (77.2KB) Procedure to calibrate ethane as a residual solvent	Download
Fixing the Disappearing CBN Peak (170.9KB)	Download
Specific Instructions for version 4.90 (553.4KB) This document explains how version 4.90 is pre-setup for internal standard as well as normalized area percent calculations. Normarea% is better for distillates and isolates	Download
Cannabinoid Standard Comparison (268.3KB)	Download
Internal Standard Calibration for Cannabis Testing (1.5MB) This document describes Internal and External calibration for Cannabis Analysis	Download
Colorado Hemp Testing SOPs (964.2KB) This document describes the hemp testing protocols suggested by the State of Colorado	Download
Colorado Hemp Drying and Sample Prep Method (376.0KB) This document outlines the Colorado suggested method of drying and preparing a hemp sample for GC analysis.	Download
Residual Solvents In Cannabis and Hemp Concentrates Testing (856.3KB) This document describes how to test cannabis and hemp concentrates for residual solvents used in the manufacturing process such as butane, acetone, and gasoline residue.	Download
Terpenes in Cannabis Comparison on Two Columns (366.8KB) This document shows the retention order of most terpenes on the two most widely used columns for terpene analysis.	Download
Cannabinoid Calibration Math (30.6KB) This document describes how to convert from the nanograms / microliter result from the calibration curve to the starting percentage in the flower, concentrate or edible sample.	Download
May 2017 proposed CA testing rules (466.9KB) This document details the proposed rules for California Cannabis Testing Labs	Download
CA Cannabis Testing Reasons May 2017 (3.0MB) This doc explains the reasoning behind the proposed CA regulations as of May 2017	Download
Long Beach Cannabis Lab Testing requirements (245.0KB) This doc from the City of Long Beach CA describes the requirements for labs testingmedical cannabis.	Download
New Developments in Cannabis testing by GC January 2018 (938.6KB) This document explains how to derivitize cannabis samples for better quantitation and to measure THCA and CBDA as well as d9THC and CBD in the same analysis. > Hugh	Download
Latest California Regulations (1.3MB) This is the 7-19-2018 version of the California cannabis regulations. See chapter 6 for the lab testing requirements.	Download
310M&M Startup kit November 2018 (111.9KB) This doc shows the contents of the startup kit supplied with the 310M&M GC for cannabis testing	Download
Sources for Cannabis and Terpene Calibration standards (112.5KB) This docs has links for where to buy Cannabinoid ( CBD, THC etc ) and Terpene ( myrcene, limonene etc ) calibration standards.	Download
Link to Steep Hill Labs explanation of decarb efficiency (18.8KB) This link explains that the real conversion rate of THCA to d9THC is not the usually accepted .877, but is instead closer to .68. https://support.steephill.com/hc/en-us/articles/218879407-How-much-THC-can-I-expect-after-decarboxylation-	Download
THCA vs d9THC (501.0KB) These chromatograms show equal amounts of d9THC and THCA injected on-column under identical condtions. It shows that the THCA converts to d9THC very close to the theorectical conversion rate of .877 without degradation or loss.	Download
Link to Interlab precision study for Cannabis/Hemp (31.4KB) https://www.rs.uky.edu/regulatory/hpt/reports.php	Download

Chromatogram Library Chrom-Library
Hydrogen in Natural Gas using Nitrogen carrier gas (1.0MB) These chromatograms show 10ppm up detection of hydrogen.	Download
Formaldehyde detection using HID detector (1.4MB) Formaldehyde does not respond well on FID or PID detectors, and sensitivity is limited on TCD. HID provide an alternative way to measure formadehyde in the low ppm range.	Download
Formic Acid using HID detector (1.3MB) Formic Acid does not respond well on FID.This chromatogram shows formic acid using a HID detector and 30meter MXT-wax column	Download
Propane/Propylene separation on 12foot Haysep D column (227.2KB) This chromatogram shows the separation at 500ppm each.	Download
1ppb Isoprene, a-Pinene and Limonene in air (3.6MB) This chromatogram shows a dual column system to measure both the very volatile isoprene and the less volatile a-Pinene and Limonene ( terpenes ) in air. An Alumina PLOT column wa used to separate isoprene from the many possible interfering molecules. A plolar column did double duty as both a pre-column to protect the Alumina and as a separation column to handle the terpenes.	Download
Ethylene Oxide in air from .5ppm to 50ppm (793.8KB)These chromatograms show ETO detection limits below .5ppm	Download
H2S and NH3 using 30RTX U-Bond column and PID detector (589.5KB) This chromatogram shows 100ppm levels of H2S and NH3 on a 30 meter U-Bond column and PID detector.	Download
PPM levels of Ammonia using a PID detector (689.1KB) This chromatogram series shows ammonia ( NH3 ) measurement at levels from 10-1000ppm using a PID detector anda 30 meter RTX U-plot column	Download
Ammonia separation on 30 meter RTX U-plot column (2.9MB) These chromatograms show Ammonia ( NH3 ) seprated on the 30 meter RTX U-plot column.	Download
Ammonia ( NH3 ) on 1meter Chrom103 column and TCD detector (1.0MB) This series of chromatograms shows NH3 vapor injections on a 1meter Chrom 103 packed column in teflon tubing.	Download
Ammonia Detection as a continous Stream using the PID detector (177.1KB) This chromatogram shows that the PID detector can measure Ammonia in a continuous stream ( 40ml/minute ) down to 10ppm levels.	Download
Ammonia detection as a continuous stream using the PID (203.0KB) This chromatogram shows the repsonse of the PID to 200ppm NH3 fed to the PID detector as a continuous stream rather than injected into a column,	Download
Ammonia detection using TCD and silicone membrane (1.9MB) This chromatogram shows detection of Ammonia in water using a TCD detector, Haysep P column and a silicone tube used as a membrane sampling probe.	Download
MultipleGas#5 Typical chromatograms using H2 and Argon carrier (1.6MB) These chromatograms compare the MG5 peaks on H2 and also on Argon carrier Gas.	Download
MG5 chromatogram plus methanol and ethanol (638.9KB) This chromatogram shows a mix of hydrocarbons plus methanol and ethanol separated from the late eluting CO2 peak.	Download
MultipleGas#5 ReproducibilityTest (1.1MB) This series of chromatograms and data show the Reproducibiliy of methane and CO on the Multiple Gas #5 GC	Download
MultipleGas#5 GC to GC uniformity (1.3MB) These 3 chromatograms show the same sample run on 3 different MG5 GCs for sensitivty comparison.	Download
Typical MG5 TCD sensitivity using helium and Argon carrier gas (526.0KB) These chromatograms shows the typical TCD sensitivity of the Multipl Gas #5 GC configuration	Download
1% and 100% CO2 on MultipleGas#5 GC (946.2KB) These chromatograms compare the peak shape of CO2 at 1% and 100% on the MG5 GC	Download
MultipleGas#1 typical chromatogram (509.9KB) This doc shows a typical chromatogram of 1% gases on the Multiple Gas #1 GC configuration with TCD and FIDmethanizer detectors.	Download
H2, O2, N2, CH4, CO on 6' MS5A column and TCD detector (261.4KB) This cheomatogram was obtained with argon carrier gas.	Download
CO2 on 1 meter MS5A column (222.1KB) This chromatograms shows CO2 eluting from a 1 meter MoleSeive 5A column. It is not well known that this is possible, and may be useful for some applications.	Download
Water elution on a 3' MS5A column (390.8KB) It is well known that water is strongly retained on a moleseive column This chromatogram shows what water looks like as it elutes at 300C.	Download
MS5A column before and after Bakeout (539.8KB) This chromatogram compares the dramatic difference is separation between methane and CO, before and after a weekend bakeout at 270C.	Download
CO2 reproducibility on MS5A column (860.8KB) This series of 3 injections demonstrates a %RSD of .6% for CO2 injected on a 6' MS5A column.	Download
1% Gas Mixture using SRI MultipleGas#1GC HID/TCD (534.4KB) This chromatogram shows H2, O2, N2, CH4, CO, C2H6, CO2, C2H4 and C2H2 on the SRI Multiple Gas#1 GC configuration with HID and TCD detectors in series.	Download
Natural Gas using TCD(1.1MB) This chromatogram show natural gas standard run the the Natgas GC configuration using Hydrogen carrier gas Data is shown for both 1 meter and 2 meter Haysep D columns in series with a 30meter MXT1 1micron film capillary column	Download
Using Room air as carrier gas with TCD detector (731.0KB) These chromatograms show room air and human breath on a SRI Educational TCD GC using hydrogen and then room air as carrier gas. The room air carrier is supplied by a built-in air compressor making this unit operate with no gas cyclinders.	Download
Hydrogen Plus CO,CO2, CH4 C2H4 and C2H6 (525.9KB) This chromatogram shows common gases separated on a 12 foot Haysep D column using the SRI MG3 GC.	Download
*Hydrogen ArgonMG5*	Download
Helium at ambient levels ( 5.2ppm ) (2.2MB) This series of chromatograms shows helium in outdoor air measured with aTCD detector and both Argon and Air carrier gas.	Download
Detection of N2@25ppm (954.9KB) This chromatogram shows detection of 25ppm N2 using a TCD detector and hydrogen carrier gas.	Download
Argon-Oxygen separation using a 24 foot MoleSieve 5A column (1.3MB) This series of chromatograms shows room air separated on a 24 foot long Molesieve 5A column at various temperatures including in a dorm fridge at 5C.	Download
Krypton in Natural Gas (478.6KB) This chromatogram shows krypton measured in Natural Gas ( 80% methane ). Krypton is difficult to separate from methane on nearly all columns. A TCD detector was used with methane carrier gas which made the detector blind to th e methane in the natural gas sample, so the krypton could then be detected.	Download
1000ppm Krypton in Natural Gas (267.7KB) This chromatogram shows Krypton in Natural Gas using methane as the carrier. It was difficult to separate krypton from the methane peak in natural gas, but by using methane as the carrier gas we were able to measure the krypton easily.	Download
Water and Alcohols on Haysep D column (207.9KB) This chromatograms shows air, water, methanol, ethanol, and isopropanol on a 6 foot Haysep D column. Oven temperature was 150C isothermal.	Download
Residual Solvents on Haysep R/D column (1.1MB) SRI packs a special 3 foot ( 1 meter ) column that is half Haysep R and half Haysep D. This column separates ethanol from isobutane, methanol from propane and acetone from pentanes.Other column types have trouble with these separations.	Download
C1-C7 Carboxylic Acids on a 30 meter MXT-wax 1 micron (217.4KB) This chromatogram shows the C1-C8 Carboxylic Acids ( VFA ) injected on a 30 meter MXT-Wax 1 micron film column.	Download
37 Fatty Acids on 100 meter RT-2560 .25mm ID column (461.6KB) This very long narrow bore column can resolve most fatty acids using 30:1 split injection.	Download
Glycerol ( Glycerine ) on 30MXT502 column (725.9KB) This series of chromatograms shows 3% Glycerol ( same as glycerine ) injected on the 310MM GC using a 30 Meter MXT502.2 1micron film column. The good new is that the glycerol elutes well away from the cannabinoid peaks so it does not interfere.	Download
Gasless Educational CCD sensitivity (687.6KB) These chromatograms show the sensitivty of the CCD ( Catalytic Combustion Detector ) detector on the Gasless Educational GC using room air as carrier gas.	Download
Hydrogen, Methane and CO2 using Model 30 TCD GC (273.1KB) This chromatogram shows .5ml of 1% gases separated at room temperature on the very small, low cost Model 30 GC with a 3 foot Haysep D column.	Download
CTR1 column chromatograms (430.0KB) The SRI CTR1 equivilent column set is a combination of Haysep D and MoleSieve 5A columns in parrallel. This is useful for measuring O2, N2, CH4, CO and CO2 in one injection.	Download
TCE on Four detectors (1.3MB) These chromatograms show TCE at 1ppm and 100ppb on FID, PID, DELCD and ECD detectors.	Download
BTEX+TCE and PCE using FID/DELCD combo detector (503.0KB) This chromatograms shows how useful the combination FID and DELCD detector is. The DELCD responds only to the halgenated molecules like TCE and PCE while the FID responds to all hydrocarbons.	Download
BTEX on Cannabis GC column (475.9KB) These chromatograms show 1 and 10ppm BTEX using the 30 meter MXT502 column supplied with SRI Cannabis testing GCs. Its useful to measure benzene and other toxic residual solvents on the capillary column because the packed column used for residual solvents does not elute benzene as a sharp peak so 1ppm detection is not practical on the packed column but is very possible on the capillary column.	Download
Hydrogen detection on SRI RGD detector (472.5KB) These chromatograms show the detection of ambient H2 ( about 5ppm ) using the SRI RGD ( reduction gas detector ).	Download
SF6 detection at ambient levels using both loop and trap (2.4MB) This series of chromatograms shows the detection of SF6 (sulfur hexafluoride ) using an SRI GC with ECD detector. Detection is compared between a 1ml loop injection and a pre-concentrator trap.	Download
Edibles GC Stop-flow and Backflush timing (522.7KB) This chromatogram shows the effect of the mid-point stop flow timing on the Edibles GC configuration.	Download
Comparison of MXT500 and MXT502 Columns for Cannabis Analysis (199.3KB) This one page documents shows the temperature programs used on the two column types. SRI has had to switch from the 15 meter MXT500 column to a 30 meter MXT502 column because the MXT500 column is no longer produced as of 2020. The new MXT502 column is better in some ways.	Download
7 Cannabinoids on 30MXT502.2 column (849.4KB) This chromatogram shows THCV, CBD, CBC, d8THC, d9THC, CBG and CBN separated on the 30 meter MXT502.2 column.	Download
THCA vs d9THC comparison (501.0KB) These chromatograms show equal amounts of THCA and d9THC injected on-column under identical condtions. It shows that THCA converts to d9THC in the GC very close to ( within statistical error ) the theorectical conversion rate of .877.	Download
D10THC separation on SRI GC (263.5KB) This chromatogram shows that D10 elutes between D8 and D9 on an SRI 310 GC using cylinder H2 carrier and a two column backflush configuration.	Download
THCP and 11HydroxyD9THC plus 7 other cannabinoids (857.2KB) This chromatogram shows the elution times of 9 cannabinoids including THCP and 11HydroxyD9THC.	Download
Typical 1 minute Mudlogger C1-C5 and C6+ backflush (872.6KB) These chromatogram show the typical tests we run for the 1 minute mudlogger configuration.	Download
Tap Water Purge&Trap with ECD and DELCD detectors in series (543.9KB) This chromatogram shows the relative responses of the DELCD and ECD detectors to the TriHaloMethanes ( THM ) in tap water.	Download
Ethylene Oxide at ppm levels (733.6KB) These chromatogams show .5, 5 and 50ppm ETO on a 3' Haysep D column	Download
10ppm BTEX+ on PID and FID in series (445.9KB) This chromatogram shows the response of the two detectors plumbed in series.	Download
Trihalomethanes in Water using DELCD detector and Purge&Trap (1.6MB) This set of chromatograms shows the measurment of THMs in water ( at ppb level ) using the SRI 8610C GC equipped with DELCD detector and Purge&Trap concentrator. Results are shown with helium carrier gas and then again using plain room air ( from the built-in air compressor ) as the carrier gas resulting in a GC which requires no gas to perfrom this analysis.	Download
Greenhouse Gas GC chromatograms (2.8MB) Final test chromatograms from a Greenhouse Gas GC which also has a TCD detector for H2, O2, N2 analysis alsong with the normal methane, CO2 and N2O peaks.	Download
Typical Cannabinoids Chromatogram (107.5KB) This chromatogram shows a typical separation of CBD, CBC, d9THC, CGB and CBN on a 15meter MXT500 .25micron .53mmid column.	Download
Hemp sample derivitized and un-derivitized (1.3MB) This series of chromatograms shows a hemp sample measured two ways, derivitized and not derivitized.	Download
Terpenes and Cannabinoids in one analysis (463.5KB) This chromatogram shows 15 terpenes and 5 cannabinoids measured in one analysis on a Restek 30 meter MXT502.2 1 micron film column	Download
Olive Oil and MCT OIL on the SRI310MM cannabis GC (1.1MB) These chromatograms show olive oil, MCT oil and the cannabinoids on the 15meter MXT500 .25micron column.	Download
Cannabinoids in MCT oil using SRI 310Edibles GC configuration (887.0KB) These chromatograms show how the SRI 310 Edibles GC uses its stop-flow and backflush capability to reject the MCT and hiogher boiling oils while still measuring the cannabinoids ( CBD, THC and CBN ). The pre-column in this GC configuration cataches the higher boiling molecules and then backflushes them to vent so they never arrive at the main column.	Download
Cannabis "Edibles" GC test sequence (1.1MB) This series of chromatograms show how the stop-flow timing affects the high boiling peak cut-off	Download
Argon-methane ( P5 ) compared to Nitrogen as ECD carrier gas 2.0MB) This chromatogram series compares the Greehhouse Gas GC configuration using P5 vs N2 when measruing N2O in room air and also N2 vs Hydrogen as carrier gas when measruing ambient methane. Reproducibily is also caculated for N2O using P5 carrier.	Download
Sulfur in Natgas (1.1MB) These chromatograms show H2S, COS, SO2 and DimethylSulfide separated from natural gas hydrocarbons C1-C6 using the SRI Sulfur in Natural Gas GC configuation. This configuation uses two columns to achieve the best separation.	Download
18ppb H2S ( hydrogen sulfide ) (947.4KB) This series of chromatograms shows 18ppb of H2S measured using a preconcentrator trap and FPD detector	Download
Monomers on FID and 10MXT1 3micron column (676.8KB) This chromatogram shows assorted monomers separated on a non-polar column.	Download

Papers, Applications Notes, and Forms
BioDiesel GC Operation (2.0MB)	Download
BioDiesel GC Operation v.3 (1.3MB)	Download
Method 16B Analysis (1.5MB)	Download
Multiple Gas Analyzer #3 Gas Detection Limits (453.4KB)	Download
CTR-1 Column Equivalent (1.8MB)	Download
FAME Analysis (57.0KB)	Download
PCB in Transformer Oil GC Operation (3.1MB)	Download
Thermal Desorber Instructions (979.1KB)	Download
Formaldehyde in Air by HPLC UV with the SRI Model 210D (145.3KB)	Download
Gel Permeation Chromatography (74.2KB)	Download
Hydrogen Detection Limits (68.9KB)	Download
Dissolved Gas/Transformer Oil Gas Analysis (1.8MB)	Download
Stationary Phases (416.6KB)	Download
Low Level Ethylene Measurement In Air (86.2KB)	Download
Sulfur Trapping (2.0MB)	Download
A Tool for Selecting an Adsorbent for Thermal Desorption Applications (by Supelco, on their website) (1.8MB)	Download
Water Analysis Using The HID Detector (65.7KB)	Download
FID Methane Detection Limit (90.2KB)	Download
TOGA GC Operation (Membrane) (847.5KB)	Download
FAMES Chromatograms (2.0MB)	Download
DET Chemical Detection (5.1MB)	Download
Statistics in the Laboratory: The Limit of Detection (33.1KB) Click here to read this article. This link will take you off of SRIGC.com	Download
Oxygenate Selective Detection for GC (7.0MB)	Download
"Zero" air vs. Room Air on FID noise (250.5KB) This document compares the difference between "zero" grade cylinder air and room air on FID noise and sensitivity.	Download
Retention time stability using air as carrier gas (219.7KB) This power point from a customer shows how stable the retention times are using an *SRI GC* configured to use air as a carrier gas and a *DELCD* detector.	Download
Useful links (18.8KB) This is a useful GC troubleshooing guide. https://phenomenex.blob.core.windows.net/documents/b043f709-428f-4697-9791-7b0f2baf9b77.pdf	Download
1ppb BTEX and below using SRI PID GC with air carrier (31.4KB) This link takes you to a paper by an SRI customer testing a miniature SRI PID pre-concentrator GC that runs on ambient air to measure 1ppb and below in the field with no carrier gas cylinders required. This makes it a lot easier to deploy. The user also uses a battery for power. https://www.preprints.org/manuscript/202102.0317/v1	Download

Papers, Applications Notes, and Forms
BioDiesel GC Operation (2.0MB)	Download
BioDiesel GC Operation v.3 (1.3MB)	Download
Method 16B Analysis (1.5MB)	Download
Multiple Gas Analyzer #3 Gas Detection Limits (453.4KB)	Download
CTR-1 Column Equivalent (1.8MB)	Download
FAME Analysis (57.0KB)	Download
PCB in Transformer Oil GC Operation (3.1MB)	Download
Thermal Desorber Instructions (979.1KB)	Download
Formaldehyde in Air by HPLC UV with the SRI Model 210D (145.3KB)	Download
Gel Permeation Chromatography (74.2KB)	Download
Hydrogen Detection Limits (68.9KB)	Download
Dissolved Gas/Transformer Oil Gas Analysis (1.8MB)	Download
Stationary Phases (416.6KB)	Download
Low Level Ethylene Measurement In Air (86.2KB)	Download
Sulfur Trapping (2.0MB)	Download
A Tool for Selecting an Adsorbent for Thermal Desorption Applications (by Supelco, on their website) (1.8MB)	Download
Water Analysis Using The HID Detector (65.7KB)	Download
FID Methane Detection Limit (90.2KB)	Download
TOGA GC Operation (Membrane) (847.5KB)	Download
FAMES Chromatograms (2.0MB)	Download
DET Chemical Detection (5.1MB)	Download
Statistics in the Laboratory: The Limit of Detection (33.1KB) Click here to read this article. (This link will take you off of Srigc.com)	Download
Oxygenate Selective Detection for GC (7.0MB)	Download
"Zero" air vs. Room Air on FID noise (250.5KB) This document compares the difference between " zero" grade cylinder air and room air on FID noise and sensitivity.	Download
Retentiion time stability using air as carrier gas (219.7KB) This power point from a customer shows how stable the retention times are using an SRI GC configured to use air as a carrier gas and a DELCD detector.	Download
Useful links (18.8KB) This is a useful GC troubleshooing guide. https://phenomenex.blob.core.windows.net/documents/b043f709-428f-4697-9791-7b0f2baf9b77.pdf	Download
1ppb BTEX and below using SRI PID GC with air carrier (31.4KB) This link takes you to a paper by an SRI customer testing a miniature SRI PID pre-concentrator GC that runs on ambient air to measure 1ppb and below in the field with no carrier gas cylinders required. This makes it a lot easier to deploy. The user also uses a battery for power. https://www.preprints.org/manuscript/202102.0317/v1	Download

Maintenance
Packing the GC for Shipment977.7KB) This document describes how to properly pack your Gas Chromatograph for shipment	Download
Replacing the Op-Amp Chip in Your GC (122.1KB)	Download
FID Collector Electrode Replacement (457.5KB)	Download
FID Ignitor Installation (444.4KB)	Download
Replacing FID Ignitor (668.4KB)	Download
Packing the RGD Reaction Tube (326.2KB)	Download
TOGA GC Permeation Tube Replacement (454.0KB)	Download
Valco Actuator Connections208.5KB) Pictures of the connections for the Valco Valve actuator	Download
Greenhouse Gas GC Valve Diagram/Event Table (30.9KB)	Download
Model 333 Relay Kit Installation (1.7MB)	Download
Vacuum Pump Interface Self-Installation (3.1MB)	Download
Air Compressor Filter Replacement (866.7KB)	Download
TID Bead Replacement (1.4MB)	Download
Heat Board Troubleshooting (1.6MB) This document explains how to troubleshoot your heat board when the Thermocouple out of Range Alarm trips	Download
Heaters (435.6KB)	Download
Ferrules (2.1MB) see also direct from Chromtech	Download
Cutting Tubing For SRI GCs (452.0KB)	Download
Flow Measurement (560.9KB)	Download
Complete Electronics Schematics Set(2015) (45.3MB)	Download
Electronics Schematics (24.1MB)	Download
Connecting Gas Cylinders (891.4KB)	Download
Cooling Blower Installation (956.2KB)	Download
EPC Maintenance (2.4MB)	Download
Heater Element Replacement 8610B (402.5KB)	Download
Service Note 1-1 (302.6KB)	Download
Oven Motor (229.3KB)	Download
TCD Resistor Replacement (1.5MB)	Download
Model 333 Chip Replacement (1.3MB)	Download
Chassis Fan Replacement (244.1KB)	Download
Relay Board Installation (3.1MB)	Download
Air Compressor Installation (2.8MB)	Download
Amp Board Capacitor (1.4MB)	Download
Leak Check (382.8KB)	Download
Losing Communication Troubleshooting Guide (527.4KB)	Download
A to D board Capacitor Installation (5.8MB)	Download
TCD Filament Protect Chip Replacement Jan 2016 (144.5KB)	Download

Model 510 Methanizer Schematic (58.4KB) This schematic is for the Model 510 Methanizer built after April 2018.	Download
Supplemental Power Supply for Gas Sampling Valves Jan 2019 (831.4KB) This document describes the installation of a supplemental power supply kit for gas sampling valves which are acting erratically	Download
Replacing the Polishing Filter (199.9KB) This document shows how to replace the polishing filter on 8610C GCs.	Download
333 Reintialization resistor update (570.8KB) This document shows how to change the two resistors on the 333 A/D board in order to reduce the incidence of re-initializations ( communication losses ).	Download
Multiple Gas#5 GC Column Bake-out Procedure (1.4MB) This document explains how to bake-out the columns in the SRI Multiple Gas#5 GC configuration.	Download
Temperature limits of various GC column stationary phases (1.1MB) Courtesy of Restek, a chart showing the upper temperature limits of many GC stationary phases	Download
Column Rinsing to remove Contaminants (1.8MB) This document shows how to solvent rinse a column using the Model 310MM GC.	Download
8610C Manual Part 1 (10.6MB) Introductory matter, GC Quick Start, 8610C GC Chassis, 310 GC Chassis, and 110 Stand-Alone Detector Chassis.	Download
8610C Manual Part 2 (13.6MB) GC Installation and Preconfigured GC Systems.	Download
8610C Manual Part 3 (14.2MB) GC Detectors.	Download
8610C Manual Part 4 (14.5MB) Detectors (cont.), Methanizer, and Syringe Injectors.	Download
8610C Manual Part 5 (10.4MB) Injection valves, purge and trap concentration, and heated static headspace	Download
8610C Manual Part 6 (13.4MB) Autosamplers, PeakSimple Tutorials, and PeakSimple Software.	Download
8610C Manual Part 7 (10.3MB) PeakSimple Software (continued).	Download
8610C Manual Part 8 (14.0MB) PeakSimple Data Systems, Hydrogen Generato, and Maintenance	Download
8610C Manual Part 9 (15.2MB)Schematics.	Download
8610C Manual Part 10 (8.5MB) Replacement Parts, Application Notes, and COBRA Vertical Autosampler Manual.	Download

PeakSimple Data Systems and Software
PeakSimple Model 302 6 channel data system changes August 2018 (319.5KB) This document shows the new box for the Model 302 data system	Download
4-20 Milliamp output from PeakSimple (1.9MB) This dicument describes how to implement the 4-20 milliamp output.	Download
Self Validation Files (12.2KB) These files allow the user to self-validate PeakSimple data systems	Download
PeakSimple Debug Mode (186.3KB)	Download
Basic PeakSimple Features (1.3MB)	Download
Model 302 USB Driver Installation (408.7KB)	Download
Model 333 1 Ch. USB Data System Quick Start (946.4KB)	Download
Model 302 6 Ch. USB Data System Quick Start (794.2KB)	Download
Model 302 Data System Manual (822.1KB)	Download
Model 203 1 Ch. Serial Data System Quick Start (448.8KB)	Download
Model 202 4 Ch. Serial Data System Quick Start (482.9KB)	Download
Advanced PeakSimple Features (1.4MB)	Download
Utilizing Multiple Instances in PeakSimple (292.1KB)	Download
New End of Run E-Mail Feature (193.4KB)	Download
User Calculations (55.9KB) This document explains how to use the user calculations feature in Peaksimple.	Download
Enabling Pressure Programming on GC (578.6KB)	Download
333 Reinitializations Feb 2019 (570.9KB) This doc describes how to modify the 333 A/D board to reduce the number of spontaneous re-initializations.	Download
PeakSimple Update Tips (98.6KB)	Download
Python control of PeakSimple (879.7KB) The zip file details how to control PeakSimple from Python software.	Download
PeakSimple Control Code Examples (27.2KB)	Download
Wits Output from PeakSimple (3.5MB) This document explains how to get PeakSimple to output data to a WITS receiver.	Download
PeakSimple Calibration (762.8KB)	Download
PeakSimple Remote Control via External Program (162.4KB)	Download
Internal Standard Calibration, in v. 3.51 (726.9KB)	Download
File Types used by PeakSimple (47.8KB)	Download
Using PeakSimple Events (Event Tables) (306.7KB)	Download
Using PeakSimple's Autosampler Queue (613.3KB)	Download
USB to Serial Adapter (582.2KB)	Download
Communication Loss (New DLL) pt.1 (527.4KB)	Download
Communication Loss pt. 2 (581.9KB)	Download
USB Port Grounding (289.4KB)	Download
Validation (934.3KB)	Download
Windows 10 Driver Troubleshooting (58.0KB)	Download
User Calculations (55.9KB) This document explains how to use the user calculations feature in Peaksimple	Download
PeakSimple drivers for various operating systems (135.0KB) This doc from Lawson Labs explains which dll,sys, cat and inf files are needed for the various Windows operating systems	Download
Copying Results Data from PeakSimple to Excel (311.9KB) This document describes the proceedure for copying results data from PeakSimple to Excel/Word or other Windows programs.	Download

GC Accessories
Methanizer (48.9K B)
Stand-Alone Methanizer Accessory (155.8KB)	Download
10 Position Greenhouse Gas GC Autosampler (1.3MB)	Download
Bandolero Gas Autosampler (424.0KB)	Download
Bandolero Interface to SRI GC diagram (3.3MB) This shows the connection from the GC interface board to control the Bandolero vial asutosampler.	Download
Bandolero Interface to SRI 8610C GC (1.9MB) This document shows the electrical connections between a *Bandolero* autosampler and the SRI GC	Download
Liquid Autosampler Operation (2.8MB)	Download
Automatic Calibration System (442.7KB)	Download
Vaporizer for LPG (766.7KB)	Download
Sample Stream Dryer (565.0KB)	Download
H2-100 Hydrogen Generator (2.2MB)	Download
Gas Tight Syringe kit January 2018 (153.9KB) This document shows the type of gas tight syringes commonly used with SRI GCs	Download

Mudlogging GCs
Fast Mudlogging Kit Installation (1.3MB)	Download
Mudlogger Data Logger Mode (445.1KB)	Download
Mudlogging GC Total Gas Calibration (1.6MB)	Download
Mass Flow Controller Option for Mudlogging GC System(652.3KB)	Download
One-Minute Mudlogger Analysis (58.8KB)	Download
Operating Mudlogger GC With Hydrogen Generator (126.2KB)	Download
Mudlogger Auto-ranging Feature (1.1MB)	Download
Mudlogger Auto-ranging Feature June 2016 (1.1MB)	Download
Mud-logger GC (758.4KB)	Download
Mudlogger Operation (3.0MB)	Download


Cobra 120 Vial Liquid Autosampler
COBRA Autosampler Manual (502.7KB) Manufacturer's manual on the COBRA Autosampler	Download
COBRA 8610V Operation (2.8MB)	Download
COBRA 8610C Mounting (2.8MB)	Download
Cobra-HTA Liquid Autosampler interface board (158.6KB) This drawing shows the jumper connections to convert the Cobra interface board to HTA.	Download
AS120 Liquid Autosampler control program and Manual (112.2MB) This zip file contains theWinodws 10 program to control the AS120 120 vial liquid autosampler and the operation manual. *Its current as of 8-25-2021*	Download

GC Detectors
TCD - Thermal Conductivity Detector part 1 (320.4KB) Function and applications of the Thermal Conductivity Detector (TCD)	Download
TCD - Thermal Conductivity Detector part 2 (234.9KB) Troubleshooting for the Thermal Conductivity Detector (TCD)	Download
FID - Flame Ionization Detector (1.1MB)	Download
Large Capacity Methanizer Installation (1.2MB)This documents describes the replacement of the 1/8 inch in-jet methanizer with the large capacity 1/4" methanizer	Download
PID - Photo Ionization Detector (321.8KB)	Download
PID LampData Sheet (339.7KB) The data sheet from one of the PID lamp manufacturers is a useful reference.	Download
FPD - Flame Photometric Detector (248.9KB)	Download
HID - Helium Ionization Detector (248.9KB)	Download
RGD - Reduction Gas Detector (390.5KB)	Download
RGD Operation (893.8KB)	Download
NPD - Nitrogen/Phosphorus Detector (436.8KB)	Download
NPD Adjustment (346.1KB) Instructions of adjusting the NPD bead voltage for optimal sensitivity/longevity of the bead	Download
NPD to FID Detector Conversion (3.4MB) Instructions on converting an NPD to an FID	Download
NPD whitepaper from DET (218.4KB) This publication from DET ( manufacturer of the NPD bead ) is very informative.	Download
TID - Thermionic Ionization Detector (5.1MB)	Download
ECD - Electron Capture Detector (334.0KB)	Download
ECD Detector Removal and Replacement (1.4MB) Important information on how to remove and replace the ECD	Download
ECD Safety Data Sheet 11-27-2017 (151.6KB) This is the safety data sheet document from NRD for the SRI ECD detector.	Download
UN 1210 Shipping Regulations for ECD detector (965.2KB) These are the regulations which cover the ECD detector.	Download
Single Filament TCD (636.2KB)	Download
DELCD - Dry Electrolytic Conductivity Detector (302.2KB)	Download
CCD - Catalytic Combustion Detector (814.4KB)	Download
ASD - Aromatic Selective Detector (1.1MB)	Download

Hydrogen Generators
H2-100 mini hydrogen generator flyer February 2022 (1.5MB) This flyer shows the miniature version of the H2-100 hydrogen generator.	Download
H2-100mini operation manual (9.5MB) This is the manul for the H2-100mini hydrogen generator	Download
H2-100 Hydrogen Generator Manual (9.6MB) This document is the manual for the H2-100 Hydrogen Generator	Download

Schematics

Model310MM Hydrogen Generator Wiring.July 2020

(58.6KB) This doc shows the wiring for the Hydrogen Generator part of the Model 310MM GC

Download

Model420 Hydrogen Generator Wiring

(56.8KB) This doc shows the wiring for the Model 420 GC.

Download

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