Calidus 2D GC + TSE

a simple powerful 2D-GC gas separation
- heartcut to 2nd column - 4mins ASK for details

with TSE capability

Speed Relevance
from Process Control GC Perspective

Cost savings re finesse of production control raw materials product throughput etc - invaluable

Fast GC vs idealised but slower R&D type separations

HC to C20 Details Restek E1387 Mix

Higher resolution > L and much greater time required

If you don’t need the Resolution then you can save time
- Accuracy improved . . . 10-20scans per peak

accuracy depends on speed of the A/D / time slicing of the Data Sys across peaks - obvious compromise in idealised Restek chromatogram
- also may suffers in accuracy perhaps
re 1 to 3 scans per peak ? ideally minimum of 10scans per peak

see accuracy proven below for typical FAST GC
. . . obvious a simulated chromatogram or perhaps on a high speed
TOC GC/MS sytsem and “idealised”

“FAST” GC
some “more practical” Issues ”Theory”/Data HTM
Calidus GC 2012 PDF Overview

FAST GC
high speed . . . separation in <120seconds
NOT minutes
AND
High Temperature C60+ or higher

far better than any process Control GC anywhere
“proven” to ASTM D2887 standards

Process Control - SIMDIST D2887

“Approved” to ASTM Standards
Calidus certification . . . pending

18x times Faster

Modularity
Detectors - micro FID & microTCD; more coming
Injectors : SSIS and Aout FasSampling Vlaves
Valve Oven Module

(relatively) Simple add-on . . . upgrade

TSE ( Targetted Signal Enhancement )
Vortex Cooling
- requires 80psi 4cfm air compressor but up to x75 increase in sensitivity for TCD
for Process GC : 6.5x3.x2” preferably separate or GC oven
- sub ppM LOD for CO2, CO, C2+ HCs, water, S-Compounds (?) potentially N2O (???) application to Lab GC ???? maybe ?

Examples Water x15x pic
C2 HCs ( Acetylene etc ) pic

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Transportable,
robust design
& compatible with
Field use

this is still but an Overview of
Calidus FastGC
for more details you will need to consult with Us !

Calidus microGC

Calidus GC PDF 124p PDF 14mB

PDFFlip FAST !

TSE Thermal Signal Enhancement option

Zoo m

*The “Compromise”*	*high SPEED vs resolution*
*new 2012+* extended to 4 metres MAX per module but 8 metres 2 modules in series	column resistive heating 6 foot long MAX ) . . . compromised “intrinsic” column efficiency 0.28mm ID Columns ~3000 plates/meter Total N(t) 6000 compared to high resolution 0.28mm ID 30m N)t) 90,000 BUT analyses in 2 minutes vs 20-30 minutes optimised
““old” GCs : large Lab GC Ovens	High Enengy;kilowatts; slow heating 60degC/min. . . at lower temp ranges 0-100C; 40 100-200; 200-300 30 300-400 ??? Cool Down 5minutes to 50C, 10mins to 40C
*“new”* Calidus FAST GC	300 Watts max; 300degC permin . . . ideal for portable applications ambient +5 degC to 400 degC Cool down < 2mins to 40 degC

Who would Use Calidus FastGC Enviro Labs
Idealfor field or lab preliminary scanning tool
. . . for follow-up detailed High(er) resolution of target samples by GC and/or GC/MS
4metres (max of Calidus) 0.1mmID MXT Nt 32,000
= 15metres 0.25mm
Peak Resolution
re Packed GC Column 30ft of 1/8”OD ~Nt 16,000

Huge potential; savings for work intensive laboratories

Process Control GC
many application can run at 20 times the speed
Economies of scale with finer control of process plants

2D-GC Applications
Heart Cutting eg First seperaton om a non-polar column with overlapping peaks separated on a polar column all in-line . . . on-line.
- can be equivalent to a single column separation with “millions of plates”

Fast GC AND TSE
increases LOD by refocusing “broad” peaks/ post column . . . x14 to x40; particularly for many volatiles on a (mini-) TCD detector
requires air compressoer and “vortex” cooling

DISADVANTAGES Injected on-column Sample Capacity
is less and requires a Split sample
BUT Sharper Peaks means LOD Limit of detection
so ~ the same

some Theory Re UltraFAST GC - Increasing GC Speed some Tips PDF The Rise and Fall of Expertise in Gas Chromatography(LCGC) PDF Pivotal Article JofC 2004 195-267PDF
	for isothermal GC Nt=5.54(Tr/W50)^2; Neff=5.54((Tr-Ta)/W50)^2 k=(Tr-Ta(/Ta Neff=N t x (k/k+1) So. . . R=1/4SqRt(Neff)
	for Temp Prog GC

Fast GC Data (?) - evidence suggest 5m 0.1mm needs >300Hz Data System
Characteristic / ID	0.10mm	0.15mm	0.18mm	0.25mm	0.32mm	0.53mm
Helium Flow (20-30cm/sec)	0.16	0.3	0.3	0.7	1.2	2.6
H2 Flow @40-60cm/csec	0.32	0.6	0.6	1.4	2.4	5.2
Sample Capacity	<10ng	<40	<50	50-100	400-500	1000-2000
Theoretical Plates/metre	8000	4000	3500	3200	2500	1800
	Calidus(Max) 4m=32,000			10m=32000	15m=37500
TZ (Trenzzahl)	(5m 0.1mm) 24(0.35s/300Hz >10(0.11sec)			20
50micron FS GC columns are NOW available	but depends on heat rate , actual w50 and Hz*	*some GCs are h’ware limited		many OEMs wll NOT publish data because of this some even refer to this as being “academic”

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FAST GC

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