|
|
|
|
|
|
Specialists in Chromatography / Fluid Transfer Products
- Distributors in Australia - & for ALLYour Laboratory Equipment Needs!
|
|
|
|
|
|
|
2019 +
|
this PC > more “mobile” friendly
|
|
-m4 ( 400px )
|
-m5 (-m4=NavBar ) ( 500px )
|
|
|
|
|
|
|
Calidus microGC
|
Calidus GC PDF  124p PDF 14mB
|
PDFFlip  FAST !
|
TSE Thermal Signal Enhancement option
|
|
|
|
|
“FAST” GC
some “more practical” Issues ”Theory”/Data HTM
Calidus GC 2012 PDF Overview 
|
|
|
|
|
this is still but an Overview of
Calidus FastGC
for more details you will need to consult with Us !
|
|
|
|
|
|
|
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
|
|
|
|
|
|
|
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”
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
Speed Relevance
from Process Control GC Perspective
Cost savings re finesse of production control raw materials product throughput etc - invaluable
|
|
|
|
|
|
|
|
|
|
|
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
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
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
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Calidus 2D GC + TSE
a simple powerful 2D-GC gas separation
- heartcut to 2nd column - 4mins ASK for details
with TSE capability
|
|
|
|
|
|
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
|
|
|
|
|
|
|
|
Modularity
Detectors - micro FID & microTCD; more coming
Injectors : SSIS and Aout FasSampling Vlaves
Valve Oven Module
(relatively) Simple add-on . . . upgrade
|
|
|
|
|
|
Transportable,
robust design
& compatible with
Field use
|
|
|
|
|
|
|
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”
|
|
|
|
|
|
 |
|
|
|
|
|
|
over the years some Catalog Products have been de-listed from catalogs; even some Suppliers are “Gone” !
- but still be available from original OEMs or from alternative Suppliers elsewhere > ASK!
|
Prices & Availability are always in a “state of flux”
&” largely” out of (our) control !
|
|
|
 |
|
|
|
|
|
|
|
but even more “specific” ? >
|
|
Then Ctrl F to SEARCH “PageTEXT”
|
|
hromtechs' Overall Site NAVIGATION
“Site” Overview more FlipHTML5
flip.chromalytic.net.au
|
|
Current /Flip/ DIR . . . /PDF2/ DIR
|
|
“CUSTOM” NavBAR
|
|
|
|
|
|
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 !
|
|
|
|
|
|
|
- Chromalytic Technology Pty Ltd 1995-2018+ : All rights reserved: OEM Supplier : Trademarks, Patents. logos apply !
