Gas Chromatography

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Welcome! by tom jupille » Thu Mar 11, 2021 6:30 pm	0	85086	Last post by tom jupille Thu Mar 11, 2021 6:30 pm

Topics	Replies	Views	Last post
Problems making a calibration curve for CO2 by jsfoodbk » Tue Oct 25, 2011 12:31 am	11	4889	Last post by chromatographer1 Thu Nov 03, 2011 1:30 am
Residual solvents external standard injections by RhysB » Sun Oct 30, 2011 9:03 pm	1	1723	Last post by Johnny Rod Wed Nov 02, 2011 2:53 pm
New to GC, pls help by fshah24 » Wed Oct 26, 2011 8:11 pm	3	1764	Last post by fshah24 Tue Nov 01, 2011 11:15 pm
Poor reproducibility HS/GC-ECD by Stangatang » Fri Oct 28, 2011 3:21 am	5	1921	Last post by cbwhipp Tue Nov 01, 2011 5:12 pm
low HPLC assay results by gys25016 » Tue Nov 01, 2011 9:15 am	1	2120	Last post by max_planck Tue Nov 08, 2011 1:55 pm
Argon as carrier gas for measuring N2, N2O, CH4 and CO2 by Hiz » Wed Oct 26, 2011 12:25 am	2	2051	Last post by Hiz Tue Nov 01, 2011 12:25 am
Empower 2154 cannot start 7890A GC by clc » Mon Oct 31, 2011 10:45 pm	0	1474	Last post by clc Mon Oct 31, 2011 10:45 pm
upgrading computer for GC5890 series 2 by efshark79 » Thu Oct 27, 2011 6:36 pm	4	6425	Last post by alexsun Sun Oct 30, 2011 8:40 pm
DMMP in air. GC column by jmata » Sun Oct 30, 2011 12:15 pm	1	2177	Last post by Don_Hilton Sun Oct 30, 2011 6:08 pm
Huge solvent peak with good baseline by Rmahat » Sat Oct 22, 2011 9:32 pm	4	2047	Last post by Rmahat Sun Oct 30, 2011 12:50 am
About PerkinElmer Turbomatrix HS by gmdeluca » Wed Oct 26, 2011 2:47 pm	1	2537	Last post by chemstation Fri Oct 28, 2011 3:52 am
Sample concentration for 250µ Capillary columns and FID by WillyOne » Sun Oct 23, 2011 7:36 pm	10	2990	Last post by WillyOne Thu Oct 27, 2011 6:45 pm
DANI Master GC by fatima.ferreira » Mon Oct 10, 2011 12:10 pm	2	4088	Last post by fatima.ferreira Thu Oct 27, 2011 2:27 pm
CE 8000 GC by LCbob » Mon Oct 24, 2011 2:24 pm	6	5030	Last post by LCbob Thu Oct 27, 2011 7:40 am
residual solvents by GC/FID-HS - %RSD question by christenseng » Wed Oct 26, 2011 5:30 pm	1	1945	Last post by chromatographer1 Wed Oct 26, 2011 6:07 pm
Acetaldehyde on GC-ECD by Pearl » Fri Oct 14, 2011 8:49 am	1	1728	Last post by mckrause Mon Oct 24, 2011 10:39 pm
calibrating pressure vs flow rate on 5890 Series II by UBC Forestry SIF » Thu Oct 13, 2011 9:25 pm	2	2164	Last post by UBC Forestry SIF Mon Oct 24, 2011 3:48 pm
PERMANENT GASES DETECTION BY MS by cristiancerda » Tue Oct 18, 2011 2:37 pm	2	1889	Last post by AICMM Mon Oct 24, 2011 2:15 pm
Low Response on ECD by terryy » Fri Sep 23, 2011 8:43 pm	3	2328	Last post by AICMM Mon Oct 24, 2011 1:17 pm
Varian 3800 EFC and tubing by HbJ » Tue Oct 18, 2011 2:42 am	6	3073	Last post by HbJ Sat Oct 22, 2011 6:07 am
web sites of GC by amrnasser87 » Sat Sep 24, 2011 6:23 pm	2	4568	Last post by Jetjamnong Fri Oct 21, 2011 2:14 pm
perkin elmer autosystem by belen » Wed Oct 05, 2011 7:17 pm	2	2622	Last post by cbwhipp Fri Oct 21, 2011 1:47 pm
GCand HPLC application database by achkata » Fri Oct 21, 2011 9:56 am	0	2297	Last post by achkata Fri Oct 21, 2011 9:56 am
Question on GC calibration basics by sokkabs » Tue Oct 18, 2011 12:53 am	6	3667	Last post by Johnny Rod Thu Oct 20, 2011 7:26 am
GC-FID by mona_mh » Sun Oct 16, 2011 6:33 am	4	4409	Last post by dblux_ Wed Oct 19, 2011 2:50 pm
ketal compound stability and stress study by kalidassa » Wed Oct 19, 2011 12:39 pm	0	2212	Last post by kalidassa Wed Oct 19, 2011 12:39 pm
RRT mismatch in USP method by vishall79 » Tue Oct 18, 2011 4:57 pm	0	2249	Last post by vishall79 Tue Oct 18, 2011 4:57 pm
Effective Carbon Number (ECN) by yhuiwen » Mon Mar 22, 2010 4:03 am	12	5368	Last post by rijia Sun Oct 16, 2011 5:20 am
No. of Theroritical Plates in GC by vdnsrinivas » Wed Oct 05, 2011 6:53 pm	6	2662	Last post by lmb Sat Oct 15, 2011 5:01 pm
liner issues on GC-FID by vorian » Fri Oct 14, 2011 7:43 pm	1	2018	Last post by WillyOne Sat Oct 15, 2011 11:28 am
partial evaporation method by greta » Fri Oct 14, 2011 2:11 pm	1	2028	Last post by Don_Hilton Sat Oct 15, 2011 2:40 am
Another Headspace Question by GregK » Sat Feb 27, 2010 6:18 am	26	12300	Last post by Karen01 Sat Oct 15, 2011 2:03 am
separation factor vs selectivity factor, and holdup time by nelidag » Fri Oct 14, 2011 12:28 pm	1	4173	Last post by tom jupille Fri Oct 14, 2011 5:06 pm
agilent 6850 series autosampler stuck in align mode? by Regency TAFE » Fri Oct 14, 2011 4:24 am	0	2786	Last post by Regency TAFE Fri Oct 14, 2011 4:24 am
Limit for Cyclopentanone as residual solvent by ganapathironanki » Fri Oct 14, 2011 3:08 am	0	2009	Last post by ganapathironanki Fri Oct 14, 2011 3:08 am
Agilent vs. ThermoFisher by zemolo » Mon Aug 29, 2011 7:37 am	10	7076	Last post by gailharrison Thu Oct 13, 2011 8:13 pm
FTIR and dynamic quenching by polartownjunkie » Wed Oct 12, 2011 12:48 pm	3	2253	Last post by polartownjunkie Wed Oct 12, 2011 5:06 pm
Area Falling by punt » Thu Apr 07, 2011 5:43 pm	20	4381	Last post by chromatographer1 Wed Oct 12, 2011 12:30 pm
water peak on an ECD? by soak » Wed Oct 12, 2011 11:14 am	0	1711	Last post by soak Wed Oct 12, 2011 11:14 am
Sevoflurane or Desflurane by GC/ECD by terryy » Tue Oct 11, 2011 8:51 pm	0	1697	Last post by terryy Tue Oct 11, 2011 8:51 pm
what instruments I need for identifying unknown volatile by jiangds06 » Sun Oct 09, 2011 5:14 pm	5	2162	Last post by jiangds06 Tue Oct 11, 2011 5:47 pm
Varian CP4900 Ez Chrom with "communication error -1." by Fakhrurrazi » Sun Oct 09, 2011 7:53 am	2	1843	Last post by varossf Tue Oct 11, 2011 7:07 am
Std Addition for headspace analysis and other techniques by chromatographer1 » Wed Aug 10, 2011 1:01 am	9	2891	Last post by chromatographer1 Mon Oct 10, 2011 12:26 pm
Increasing peak area in GC by Fdollet » Wed Mar 23, 2011 11:28 pm	8	6296	Last post by mckrause Sun Oct 09, 2011 6:38 am
methanol & ethanol low response in headspace chromatography by bani28 » Sat Jul 30, 2011 4:19 am	10	3792	Last post by mckrause Sun Oct 09, 2011 6:25 am
GC/MS method for short chain alkene? by saulitbs » Tue Aug 23, 2011 12:10 pm	5	3123	Last post by mckrause Sun Oct 09, 2011 5:56 am
Analysis of Hexaconazole by jasoncklee » Thu Aug 25, 2011 6:22 am	3	2153	Last post by mckrause Sun Oct 09, 2011 5:51 am
Upper end of concentration range by WK » Fri Sep 16, 2011 12:27 pm	21	2984	Last post by mckrause Sun Oct 09, 2011 5:45 am
Limit of Detection by KMP » Sat May 28, 2011 6:44 pm	8	2953	Last post by mckrause Sun Oct 09, 2011 5:38 am
Sample can not return to baseline for SD test by slbmiss » Fri Oct 07, 2011 5:44 pm	1	1566	Last post by GasMan Fri Oct 07, 2011 9:03 pm

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