Gas Chromatography

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Welcome! by tom jupille » Thu Mar 11, 2021 6:30 pm	0	18791	Last post by tom jupille Thu Mar 11, 2021 6:30 pm

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Best performance to cost ratio HEADSPACE GC/MS: pls advice! by 2152812 » Mon Jan 09, 2006 12:22 am	6	5147	Last post by CE Instruments Wed Jan 11, 2006 11:17 am
pressure drop by amitavaghosh » Mon Jan 09, 2006 6:49 am	1	3282	Last post by JI2002 Tue Jan 10, 2006 1:46 am
[color=red]Effect to the data validity or internal quality c by along » Mon Jan 09, 2006 11:24 am	0	2622	Last post by along Mon Jan 09, 2006 11:24 am
%rsd on 5973 autotune by indianolajohn » Tue Jan 03, 2006 8:23 pm	3	3229	Last post by JI2002 Fri Jan 06, 2006 8:07 pm
Headspace method for Formaldehyde by groschte » Wed Jan 04, 2006 10:23 pm	2	3066	Last post by groschte Thu Jan 05, 2006 5:04 pm
optimization of flow rate by nina » Thu Dec 29, 2005 9:31 am	4	3380	Last post by nina Wed Jan 04, 2006 12:49 pm
Negative peak in GC system by vanjas » Wed Jan 04, 2006 6:38 am	1	2907	Last post by Rafael Chust Wed Jan 04, 2006 11:00 am
0.53 column in GC-MS? by dodoleest » Tue Dec 20, 2005 10:25 am	7	5521	Last post by carrolr Wed Jan 04, 2006 5:23 am
strange baseline jump by afischer » Fri Dec 30, 2005 7:30 pm	2	2999	Last post by carrolr Wed Jan 04, 2006 4:37 am
Thermionic Detector by Ashraf_Khan » Fri Dec 23, 2005 4:42 am	1	2885	Last post by Ashraf_Khan Thu Dec 29, 2005 3:53 am
Thermodynamic Pitfall(s) by Ashraf_Khan » Sun Dec 25, 2005 1:35 am	5	3911	Last post by tom jupille Wed Dec 28, 2005 8:27 pm
Kovat's index by morningstar » Wed Dec 21, 2005 7:38 pm	3	4467	Last post by CE Instruments Mon Dec 26, 2005 1:17 pm
Megabore GC-MS by Mark » Fri Dec 23, 2005 3:39 pm	0	2859	Last post by Mark Fri Dec 23, 2005 3:39 pm
amino acids by gc by upamaniah » Tue Dec 20, 2005 2:28 pm	3	4927	Last post by foren Fri Dec 23, 2005 11:47 am
chiral gc-urgent help needed by from_croatia » Wed Dec 21, 2005 1:58 pm	0	2580	Last post by from_croatia Wed Dec 21, 2005 1:58 pm
p-Nitrosophenol by Gas Chromatography by Ashraf_Khan » Tue Dec 20, 2005 3:39 am	3	3241	Last post by Ashraf_Khan Wed Dec 21, 2005 4:04 am
Ellution order for Poropak 80/100 N by AngelaPitcher » Mon Dec 19, 2005 7:10 pm	2	3035	Last post by chromatographer1 Tue Dec 20, 2005 10:43 pm
bracketing standard technique by upamaniah » Thu Dec 15, 2005 6:53 am	4	5896	Last post by upamaniah Tue Dec 20, 2005 2:19 pm
Dimethyl sulfide (DMS) and CH4 with FID? by AngelaPitcher » Mon Dec 19, 2005 7:08 pm	5	3915	Last post by chromatographer1 Tue Dec 20, 2005 1:46 pm
MS NoVent by chhubert » Mon Dec 19, 2005 3:18 am	2	2843	Last post by Earl Mon Dec 19, 2005 8:55 pm
DMS and CH4 with FID again... by AngelaPitcher » Mon Dec 19, 2005 7:41 pm	0	2434	Last post by AngelaPitcher Mon Dec 19, 2005 7:41 pm
Step in baseline, Mol sieve Column, H2O contaiminated? by smoothy » Thu Dec 08, 2005 1:13 am	2	3131	Last post by arie2044 Mon Dec 19, 2005 3:02 pm
Head space technique by GT » Mon Dec 19, 2005 11:12 am	1	2662	Last post by chromatographer1 Mon Dec 19, 2005 12:51 pm
MDEA by FID by Roslee8172 » Wed Nov 23, 2005 1:10 am	2	3273	Last post by mbulentcakar Mon Dec 19, 2005 9:09 am
identification of monomer as dimethylaminoethyl acrylate by Eric » Sat Dec 10, 2005 2:30 pm	2	3322	Last post by Eric Sat Dec 17, 2005 7:26 pm
Bisphenol A analysis by ws_lam » Wed Nov 23, 2005 1:47 am	1	2796	Last post by wsayers Sat Dec 17, 2005 5:42 pm
% water by GC by mccarrik24 » Sat Dec 03, 2005 10:15 pm	5	3645	Last post by wsayers Sat Dec 17, 2005 4:25 pm
Baseline rose, Wax Column kaput, Filament gone by Giorgi » Fri Dec 09, 2005 8:15 pm	1	2725	Last post by wsayers Sat Dec 17, 2005 4:17 pm
Tails in PCBs analysis by camino » Fri Dec 16, 2005 11:51 am	1	2844	Last post by wsayers Sat Dec 17, 2005 3:51 pm
start with ecd by upamaniah » Sat Dec 17, 2005 6:25 am	0	2434	Last post by upamaniah Sat Dec 17, 2005 6:25 am
fatty acid methyl ester split peak by skunked_once » Mon Oct 24, 2005 6:04 pm	9	4784	Last post by skunked_once Fri Dec 16, 2005 4:43 pm
Fatty Acid Derivatization by Ann Lucas » Tue Dec 13, 2005 9:28 pm	3	3419	Last post by Ann Lucas Fri Dec 16, 2005 4:14 pm
Methanol by headspace peak tailing by Pegry » Wed Dec 14, 2005 9:13 am	7	4830	Last post by chromatographer1 Thu Dec 15, 2005 10:09 pm
Different peak structure for MSD and FID by Tandem » Mon Dec 12, 2005 12:12 pm	3	3000	Last post by sg Thu Dec 15, 2005 2:35 am
Triethyamine by vanjas » Wed Dec 14, 2005 7:28 am	2	3364	Last post by sg Thu Dec 15, 2005 1:57 am
analyses of free fatty acids in water (C2-C7) by Helena » Mon Dec 12, 2005 4:11 pm	5	3422	Last post by chromatographer1 Tue Dec 13, 2005 1:07 pm
Question for Oil Company Chemist by Bill Tindall » Thu Dec 08, 2005 12:51 am	2	2814	Last post by Bill Tindall Fri Dec 09, 2005 4:43 pm
valeroyl chloride - extra peaks by upamaniah » Fri Dec 02, 2005 12:17 pm	1	2573	Last post by upamaniah Tue Dec 06, 2005 5:24 am
Maximum Gas Injection Volume by ravenwork » Mon Dec 05, 2005 7:11 pm	2	2964	Last post by chromatographer1 Mon Dec 05, 2005 10:00 pm
Trace analysis for Diethanolamine in drug products by gnakra » Fri Dec 02, 2005 1:41 pm	0	2659	Last post by gnakra Fri Dec 02, 2005 1:41 pm
about TMS derivatization by qyp29 » Fri Nov 18, 2005 2:40 am	4	3995	Last post by qyp29 Fri Dec 02, 2005 10:15 am
The Best Hydrogen Solution for the GC and Lab by m9n29 » Fri Dec 02, 2005 8:35 am	0	2714	Last post by m9n29 Fri Dec 02, 2005 8:35 am
Will too much high vacuum grease will give high water peak? by blue » Tue Nov 29, 2005 5:12 pm	2	3227	Last post by jaj Thu Dec 01, 2005 4:01 pm
hydrocarbon by dodoleest » Wed Nov 30, 2005 9:33 am	2	2934	Last post by Amirav Thu Dec 01, 2005 10:52 am
Reference by nina » Wed Nov 30, 2005 9:45 am	1	2666	Last post by nina Thu Dec 01, 2005 10:10 am
Response factor by nina » Wed Nov 30, 2005 9:07 am	1	3001	Last post by tom jupille Wed Nov 30, 2005 11:37 pm
Instrument for Corrosive Gas Analysis by jaj » Fri Nov 04, 2005 4:40 pm	1	3132	Last post by chromatographer1 Wed Nov 30, 2005 10:50 pm
dinoseb and diazomethane and EPA 8151 by ravenwork » Tue Nov 29, 2005 5:42 pm	2	3782	Last post by Steve Reimer Wed Nov 30, 2005 6:34 pm
not able to separate benzene, isopropanol & n-propanol o by Amos » Tue Nov 29, 2005 3:35 pm	5	4742	Last post by Rick Jagielski Wed Nov 30, 2005 5:27 pm
Breakdown products of phenanthrene in sediment samples. by xujing » Fri Nov 25, 2005 12:30 pm	5	3738	Last post by wsayers Wed Nov 30, 2005 6:56 am

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