Upload File

cooling down the gc column (cryotrap)

5
Cooling down the Gas Chromatographic column. Cryogenic focusing on the first part of the GC-column.

Upload: geert-alkema

Post on 02-Jun-2015

517 views

Category:

Technology


0 download

Report

Tags:

DESCRIPTION

Cold Trap for Gas Chromatography (GC). Why is it usefull to have a cryotrap in your GC oven.

TRANSCRIPT

Page 1: Cooling down the GC Column (CryoTrap)

Cooling down the Gas Chromatographic column.

Cryogenic focusing on the first part of the GC-column.

Page 2: Cooling down the GC Column (CryoTrap)

Cryogenic cold traps focus the sample in a narrow band at the beginning of the column by cooling a short section of the column.

Cryo-focusing is used to narrow the width of a peak, as a result the signal to noise ratio and the detection limit are improved.

Page 3: Cooling down the GC Column (CryoTrap)

A cryogenic trap is designed for rapid cooling and efficient re-heating, ensuring reproducibility and optimum peak shape.

Cold traps are mainly used with the following injection techniques.

- On-Column injections- Enrichment (multiple injections)- Air and Gas Sampling- Purge and Trap- Multidimensional- Head Space Analysis- SPME- ITEX

Page 4: Cooling down the GC Column (CryoTrap)

Trapping temperature and heating rate are very important parameters for a Cryotrap.

Page 5: Cooling down the GC Column (CryoTrap)

The GL Sciences CryoFocus-4 is the only cryogenic trap with fast heating (60°C/sec).

More information on www.glsciences.eu

http://www.glsciences.eu/html/cryotrap.html
http://www.glsciences.eu/

GC Column Selection Guide - Sigma-Aldrich

Understanding the Capillary GC Column

GC Column Brochure

GC Columns GC COLUMN - Phenomenex · 5 ZB-1HT Inferno™ High temperature stability ... 5 ZB-1XT SimDist Metal column with increased accuracy for simulated distillation analysis,

CryoTrap - JAS - Joint Analytical Systems GmbHSplit˜ratio:˜1:50 GC oven:˜40→ 20ºC/min→320ºC˜(1min) Injector: 320ºC 1100000 These are residual volatiles which can be separated

(GC/MS) CAPILLARY COLUMN · IN WATER BY GAS CHROMATOGRAPHY/MASS SPECTROMETRY (GC/MS) CAPILLARY COLUMN Prepared by:__ __ __ Date: _ ___ Russell Arnone, Chemist Hazardous Waste Support

Grace GC Capillary Column Families - MZ-AT · PDF file 213 gas chromatography gc columns | capillary Grace® GC Capillary Column Families tech tip Temperature limits Our GC capillary

GC Column Selection Chart

Capillary columns Improved sensitivity · Capillary column GC There are sufficient differences in the performance and instrumentation involved with capillary column GC to allow separate

GC Columns and Accessories - Thermo Scientific | …€¦ ·  · 2015-12-11C . Film Thickness D . Column Length A. Column Phase ... column sample capacity increases, ... GC Columns

GC Columns - Winlab Pty Ltd · GC Columns. 1. GC Columns. Welchrom® Series GC Capillary Column ... Fatty Acid Methyl Ester etc ... Welchrom ® GC Columns by USP Listing : WEL:

Chapter 2-The Column in GC

Bulletin 890 – Packed Column GC Application Guide

Varian GC Column Catalogue

GC COLUMN GUIDE

Grace GC Capillary Column Families - MZ-AT · Grace® GC Capillary Column Families tech tip Temperature limits Our GC capillary columns are temperature rated. In some cases, ... AT™-WAX

GC CAPILLARY COLUMN

Fast Analysis of Low Level BTEX using the Agilent Micro GC ... · Agilent 490 Micro GC Column CP-Sil 5 CB, 4 m Column temperature 100 °C ... Sample flow mode continuous Micro GC

Discover 28 Zebron GC Column Phasesfiles.clickdimensions.com/phenomenexcom-aikxj/files/fl26920315_bnl...Discover 28 Zebron GC Column Phases Application Specifi c • ZB-SemiVolatiles

Packed Column GC Application Guide

GC Column Selection Chart - Phenomenexphx.phenomenex.com/lib/po48811109_l.pdf · GC Column Selection Chart The polarity scale is based on their McReynolds value, ... Bonded, solvent

Understanding the Capillary GC Column to Select th… · Understanding the Capillary GC Column: How to Choose the Correct Type and ... • 1 – 12 m length • Internal Diameter

GC Column Selection Guide Cover

GC Column Selection Guide_SUPELCO

GC Column Selection Guide Cover - lcgcindia.com

Guide to GC Column Selection and Optimizing …. ID. THICKNESS INNER. ID. DIAMETER. LENGTH. ID. Guide to GC Column Selection and Optimizing Separations • Learn how to …

GC Column Selection Guide - sigmaaldrich.com

GC CAPILLARY COLUMN - SGE Analytical Science€¦ · Congratulations on your purchase of an SGE GC Capillary Column. SGE’s GC Capillary Columns In developing our range of GC capillary

GC COLUMN GUIDE...GC 9 SCION Instruments

GC Column Care Guide - Phenomenexphx.phenomenex.com/lib/gu61770410_l.pdf · GC Column Care Guide GC Column Installation ... GC Column Conditioning and Testing A. Column Conditioning

GC Column Selection for EPA Methods - Phenomenexphx.phenomenex.com/lib/po72960110_l.pdf · EPA Waste Water Test Methods ... ZB-5ms GC Column Selection for EPA Methods ... Solvent

GC Column Installation Made Easier - Agilent · GC Column Installation Made Easier Introducing Agilent Self Tightening Column Nuts and the Making Better GC Connections Portfolio

Secrets of GC Column Dimensions 030910 - Agilent of GC... · Secrets of GCSecrets of GC Column Dimensions GC Columns and Consumables Mark Sinnott Application Engineer Folsom CaliforniaFolsom

Making Better GC Column Connections Introducing The ... · Making Better GC Column Connections Introducing The Agilent ... Composition Re-use Max T Use Limitation ... CFT Column breakage

GC Column Care Guide - Phenomenexphx.phenomenex.com/lib/gu61770409_l.pdf · GC Column Care Guide ... *Guaranteed fit for Agilent 5850, 5890, 6890, ... in order to minimize the downtime