Gas Chromatography

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Welcome! by tom jupille » Thu Mar 11, 2021 6:30 pm	0	61122	Last post by tom jupille Thu Mar 11, 2021 6:30 pm

Topics	Replies	Views	Last post
5890 Series II Instruction Manual by RobinL » Fri Apr 14, 2006 7:36 pm	1	3019	Last post by Consumer Products Guy Fri Apr 14, 2006 7:49 pm
GC - Ghost Peaks - small hump at 10 mins second time around by swheelz » Sun Apr 09, 2006 10:42 pm	11	5737	Last post by HW Mueller Thu Apr 13, 2006 4:21 pm
Packed GC Columns by tbd694 » Wed Apr 12, 2006 1:39 pm	4	3544	Last post by tbd694 Thu Apr 13, 2006 3:56 pm
Inlet trap on 6890 GC by ap01 » Tue Apr 11, 2006 5:49 pm	1	2835	Last post by ntruong Thu Apr 13, 2006 5:57 am
TCD of hydrogen in argon carrier by rekuci » Wed Apr 12, 2006 7:24 pm	1	3068	Last post by chromatographer1 Wed Apr 12, 2006 8:39 pm
spiky baseline by chemwipe » Mon Apr 03, 2006 8:37 pm	9	5978	Last post by rekuci Wed Apr 12, 2006 5:15 pm
Fatty Acid Standard Kits by josebenjamin » Tue Apr 11, 2006 5:09 pm	2	3328	Last post by HW Mueller Wed Apr 12, 2006 7:04 am
How to set septum purge flow? by zimanli » Mon Apr 10, 2006 7:59 pm	7	14355	Last post by zimanli Tue Apr 11, 2006 4:56 pm
I am using splitless liner for split injections. by zimanli » Mon Apr 10, 2006 9:30 pm	8	8764	Last post by zimanli Tue Apr 11, 2006 3:17 pm
Naphthenic acid analysis by Ricardo » Mon Mar 27, 2006 8:49 pm	4	3436	Last post by Consumer Products Guy Tue Apr 11, 2006 2:53 pm
TCD gas analysis by mantri21 » Tue Apr 11, 2006 10:25 am	1	2676	Last post by chromatographer1 Tue Apr 11, 2006 12:38 pm
Analyzing THMs in water by GC/ECD by chemengineer » Tue Apr 11, 2006 9:54 am	0	2439	Last post by chemengineer Tue Apr 11, 2006 9:54 am
Benzene in soft drink by ortelli » Fri Apr 07, 2006 3:08 pm	3	3191	Last post by MikeD Mon Apr 10, 2006 8:01 am
more on tailing, acetone, non-Wax phases --> my analytes by khirth » Thu Apr 06, 2006 3:02 pm	5	10082	Last post by Peter Apps Mon Apr 10, 2006 7:43 am
Change carrier gas by carol » Thu Apr 06, 2006 1:17 pm	6	7795	Last post by MikeD Fri Apr 07, 2006 2:01 pm
Headspace gas chromatography by stappg » Fri Apr 07, 2006 5:03 am	1	2876	Last post by chromatographer1 Fri Apr 07, 2006 1:08 pm
USP Vitamin E Acetate Assay by mjfrayer » Thu Mar 30, 2006 7:35 pm	5	4875	Last post by stappg Fri Apr 07, 2006 5:00 am
C19:0 Elution by afischer » Tue Apr 04, 2006 11:02 pm	5	3769	Last post by afischer Thu Apr 06, 2006 6:16 pm
Lab Contamination by msimone » Wed Apr 05, 2006 1:08 pm	4	3436	Last post by HW Mueller Thu Apr 06, 2006 8:37 am
Autosampler bending plunger by Les » Wed Apr 05, 2006 7:10 pm	0	2591	Last post by Les Wed Apr 05, 2006 7:10 pm
solvent effects by gcguy » Thu Mar 30, 2006 12:13 pm	1	2796	Last post by khirth Wed Apr 05, 2006 2:53 pm
test mixes by afischer » Sat Mar 11, 2006 12:19 am	2	3086	Last post by afischer Tue Apr 04, 2006 11:13 pm
strange baseline behavior by afischer » Tue Apr 04, 2006 10:58 pm	0	2724	Last post by afischer Tue Apr 04, 2006 10:58 pm
Calibration curve slope by zimanli » Mon Apr 03, 2006 2:57 pm	5	3705	Last post by Peter Apps Tue Apr 04, 2006 2:58 pm
Can internal standard method be used in headspace study? by zimanli » Mon Apr 03, 2006 3:00 pm	6	7721	Last post by zimanli Tue Apr 04, 2006 2:41 pm
Is temperature ramp too big harmful to the column? by zimanli » Mon Apr 03, 2006 7:05 pm	3	3800	Last post by Peter Apps Tue Apr 04, 2006 1:58 pm
Do I cool inlet and interface overnight? by zimanli » Fri Mar 31, 2006 10:51 pm	6	3511	Last post by zimanli Tue Apr 04, 2006 1:55 pm
Florisil by WK » Fri Mar 24, 2006 3:07 pm	6	9543	Last post by skunked_once Tue Apr 04, 2006 1:50 pm
Can I use splitless liner for split injection? by zimanli » Mon Apr 03, 2006 5:51 pm	2	4011	Last post by KC Tue Apr 04, 2006 1:10 pm
Methanizer question by chemguy » Tue Mar 21, 2006 10:04 pm	3	5332	Last post by chromatographer1 Mon Apr 03, 2006 3:53 pm
poly(butyl acrylate) hydrolysis by julia » Thu Mar 30, 2006 6:49 pm	3	4256	Last post by julia Mon Apr 03, 2006 11:08 am
UOP 744 calibration standard by laucchiun » Mon Apr 03, 2006 10:29 am	0	3146	Last post by laucchiun Mon Apr 03, 2006 10:29 am
GC software by cheen » Wed Mar 29, 2006 11:56 am	3	3599	Last post by jwmol Fri Mar 31, 2006 6:06 pm
Peaks on peaks... by chemwipe » Thu Mar 30, 2006 9:40 pm	2	3145	Last post by Rafael Chust Fri Mar 31, 2006 8:53 am
formaldehyde analysis with residual sodium formate by Stephanie » Wed Mar 29, 2006 10:31 pm	1	3661	Last post by chromatographer1 Thu Mar 30, 2006 1:05 pm
Tailing - chlorinated aromatics with phenol and aldehyde by khirth » Thu Mar 16, 2006 8:53 pm	16	9155	Last post by gcguy Thu Mar 30, 2006 12:08 pm
External vs Internal calibration by laucchiun » Mon Mar 27, 2006 4:12 am	3	3422	Last post by tom jupille Wed Mar 29, 2006 10:01 pm
how to set up quantitation database for internal calibration by zimanli » Wed Mar 29, 2006 2:55 pm	0	2375	Last post by zimanli Wed Mar 29, 2006 2:55 pm
PAHs analysis by tsuihoping » Tue Mar 28, 2006 3:07 am	1	2767	Last post by Rafael Chust Tue Mar 28, 2006 9:25 am
2-Propanol Peak by ksmb » Wed Mar 15, 2006 5:32 pm	5	3976	Last post by ntruong Tue Mar 28, 2006 6:31 am
N2 to H2O ratio? by zimanli » Fri Mar 24, 2006 10:22 pm	2	5093	Last post by zimanli Mon Mar 27, 2006 11:18 pm
Split with on-column injector? by Fabiano » Sun Mar 19, 2006 9:58 pm	6	3823	Last post by Fabiano Thu Mar 23, 2006 8:39 am
ECD sensitivity and oxygen by max » Wed Mar 22, 2006 2:21 pm	1	2831	Last post by chromatographer1 Wed Mar 22, 2006 6:01 pm
ALS problems on 6890N by stappg » Wed Mar 22, 2006 1:56 am	1	2969	Last post by Les Wed Mar 22, 2006 5:18 pm
noise in baseline by lottin michael » Wed Mar 22, 2006 1:09 pm	0	2506	Last post by lottin michael Wed Mar 22, 2006 1:09 pm
Internal Calibrations by Anthony Doyle » Mon Mar 20, 2006 6:56 pm	1	2629	Last post by chromatographer1 Mon Mar 20, 2006 9:40 pm
Residual solvents anticancer drug by Pegry » Sun Mar 19, 2006 10:35 am	1	2886	Last post by chromatographer1 Mon Mar 20, 2006 1:31 pm
GC and GC-Ms instrument transport by josebenjamin » Tue Mar 07, 2006 10:28 pm	4	4176	Last post by MikeD Fri Mar 17, 2006 5:36 pm
GC calibration standard calculations by Richard_643114 » Mon Mar 13, 2006 9:27 pm	1	3835	Last post by Steve Reimer Thu Mar 16, 2006 5:18 pm
GC Method for assay of Halquinol by omkrown » Sun Feb 26, 2006 11:17 am	2	4859	Last post by chromatographer1 Wed Mar 15, 2006 8:33 pm

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