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CHROMTECH : Specialists in Chromatography
- Fluid Transfer Products : & FOR All Your Laboratory Needs !
- Importers & Distributors in AUSTRALIA
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> ( Starters
re Covid-19
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Admin
Categories
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WOW >FlipSlides
ALT Home PagesOur External Sites )
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Calidus microGC
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Calidus GC PDF  124p PDF 14mB
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PDFFlip  FAST !
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TSE Thermal Signal Enhancement option
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The “Compromise”
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high SPEED vs resolution
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new 2012+ extended to 4 metres MAX per module but 8 metres 2 modules in series
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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
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““old” GCs : large Lab GC Ovens
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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
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“new” Calidus FAST GC
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300 Watts max; 300degC permin . . . ideal for portable applications
ambient +5 degC to 400 degC
Cool down < 2mins to 40 degC
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“FAST” GC
some “more practical” Issues ”Theory”/Data HTM
Calidus GC 2012 PDF Overview 
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this is still but an Overview of
Calidus FastGC
for more details you will need to consult with Us !
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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
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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
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see accuracy proven below for typical FAST GC
. . . obvious a simulated chromatogram or perhaps on a high speed
TOC GC/MS sytsem and “idealised”
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Speed Relevance
from Process Control GC Perspective
Cost savings re finesse of production control raw materials product throughput etc - invaluable
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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
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FAST GC
high speed . . . separation in <120seconds
NOT minutes
AND
High Temperature C60+ or higher
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far better than any process Control GC anywhere
“proven” to ASTM D2887 standards
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Process Control - SIMDIST D2887
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“Approved” to ASTM Standards
Calidus certification . . . pending
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18x times Faster
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Calidus 2D GC + TSE
a simple powerful 2D-GC gas separation
- heartcut to 2nd column - 4mins ASK for details
with TSE capability
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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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Modularity
Detectors - micro FID & microTCD; more coming
Injectors : SSIS and Aout FasSampling Vlaves
Valve Oven Module
(relatively) Simple add-on . . . upgrade
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Transportable,
robust design
& compatible with
Field use
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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
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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)
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for Temp Prog GC
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Fast GC Data (?) - evidence suggest 5m 0.1mm needs >300Hz Data System
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Characteristic / ID
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0.10mm
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0.15mm
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0.18mm
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0.25mm
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0.32mm
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0.53mm
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Helium Flow
(20-30cm/sec)
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0.16
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0.3
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0.3
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0.7
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1.2
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2.6
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H2 Flow
@40-60cm/csec
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0.32
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0.6
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0.6
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1.4
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2.4
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5.2
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Sample Capacity
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<10ng
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<40
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<50
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50-100
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400-500
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1000-2000
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Theoretical Plates/metre
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8000
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4000
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3500
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3200
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2500
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1800
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Calidus(Max)
4m=32,000
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10m=32000
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15m=37500
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TZ (Trenzzahl)
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(5m 0.1mm) 24(0.35s/300Hz
>10(0.11sec)
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20
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50micron FS GC columns are NOW available
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but depends on heat rate ,
actual w50 and Hz*
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*some GCs are h’ware limited
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many OEMs wll NOT publish data because of this
some even refer to this as being “academic”
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& > as a product preview to / from
Our detail PC Site(s)
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& U can still “ Pinch&Zoom / Screen rotate ”
on a “decent” Mobile phone
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*All OUR Site > HTM Links
-Now part converted to 800px Tablet & Mobile
>~600-500 / 400px screen
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Website (Home) extended
> PC1000px>
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Tablet ~MobileA8
chromtech.net.au
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ChromalyticTechnology PtyLtd 1995-2019 : All rights reserved:
OEM Supplier : Trademarks, Patents. logos apply ! Copyright  -
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*GOOGLE SEARCH
> 1000px PC Results
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“filename” ( -m4, -m5,.htm ) refer to mobile versions, respectively
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but even more “specific” ? >
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Then Ctrl F to SEARCH “PageTEXT”
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hromtechs' Overall Site NAVIGATION
“Site” Overview more FlipHTML5
flip.chromalytic.net.au
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Current /Flip/ DIR . . . /PDF2/ DIR
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“CUSTOM” NavBAR
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just a few >from 1000’s
from ”itsy bitsy” pieces to . . .
lab equipment /instrumentation
if we haven’t got it listed ?
we’ll try & get it !
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Restek Important Notice !
& Until Further Notice
Supplies from Restek ?
R On Hold as of 2020
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some items from Chromalytic
are still in stock or May still be available ENQUIRE !
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2020 March
> OUR Website(s) are being modified ACCORDINGLY 1
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MUCH of OUR Restek Literature is being “archived”??
but still may be available for
Technical Reference purposes ONLY > OFF-Line
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ASK !
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We reserve the right to Offer Alternative Products !
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