LC-MS, GC-MS, and other - Page 70 - Chromatography Forum

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Welcome! by tom jupille » Thu Mar 11, 2021 6:40 pm	0	75136	Last post by tom jupille Thu Mar 11, 2021 6:40 pm

Topics	Replies	Views	Last post
Need help on chromatograph interpetation by PinotNoir » Mon Apr 04, 2011 10:42 pm	4	2575	Last post by Peter Apps Fri Apr 08, 2011 7:47 am
Transfer line temperature setting by bugteller » Wed Apr 06, 2011 2:38 am	5	13658	Last post by Peter Apps Fri Apr 08, 2011 7:43 am
How to increase sensitivity on GCMS? by eauchem » Mon Mar 14, 2011 2:26 pm	4	6044	Last post by LindseyPyron Thu Apr 07, 2011 7:40 pm
contamination problem in HPLC/MS system by pyao » Thu Apr 07, 2011 11:08 am	9	2883	Last post by lmh Thu Apr 07, 2011 4:57 pm
testing presence of impurity at below 100 PPB levels by maker50 » Thu Mar 31, 2011 9:44 pm	6	2928	Last post by JI2002 Wed Apr 06, 2011 8:13 pm
Benomy fungicide residue in soil by randa » Wed Apr 06, 2011 8:45 am	2	5041	Last post by H.Thomas Thu Apr 07, 2011 8:17 am
EM voltage randomly changing by chromatonewbie » Mon Apr 04, 2011 12:44 am	2	2248	Last post by chromatonewbie Mon Apr 04, 2011 5:10 am
Shimadzu selector valve fury by Jsup » Sat Apr 02, 2011 10:54 pm	0	2031	Last post by Jsup Sat Apr 02, 2011 10:54 pm
Negative ion tuning problems on a Sciex API 3200 by Jsup » Sat Mar 26, 2011 8:00 am	2	2577	Last post by Jsup Sat Apr 02, 2011 10:48 pm
LC-MS Vs LC/MS TOF Vs QTOF by Karen01 » Wed Mar 30, 2011 6:42 pm	1	6756	Last post by Gaetan Glauser Wed Mar 30, 2011 7:43 pm
1100 MSD/Ion Trap "Gas Supply Error" by ksharp » Wed Mar 30, 2011 2:58 pm	0	2366	Last post by ksharp Wed Mar 30, 2011 2:58 pm
GCMS Sensitivity with quickswap valve by DWK » Mon Feb 16, 2009 7:57 pm	6	2930	Last post by chromatonewbie Wed Mar 30, 2011 2:58 am
ISOBARIC PEAKS by sekarbioanalytical » Tue Mar 29, 2011 12:51 am	4	3089	Last post by sekarbioanalytical Wed Mar 30, 2011 2:09 am
Persistent problem of high N2 in GCMS by wan » Fri Mar 11, 2011 2:42 am	12	3405	Last post by wan Tue Mar 29, 2011 2:33 pm
Post-Column Infusion by wan » Wed Mar 16, 2011 1:36 pm	7	4781	Last post by wan Tue Mar 29, 2011 2:27 pm
Hypercarb column not for melamine analysis? by wan » Tue Mar 29, 2011 2:17 pm	3	2644	Last post by wan Fri Apr 08, 2011 5:29 am
Shimadzu GC/MS Calibration ISTD question by IdiotFool » Mon Mar 28, 2011 6:25 pm	0	2328	Last post by IdiotFool Mon Mar 28, 2011 6:25 pm
GC-IRMS problem by leo1352 » Mon Mar 21, 2011 2:25 am	1	2667	Last post by trozen Sat Mar 26, 2011 1:31 pm
Working w/ MS w/o LC, can I find a job actually?? by mamimegan » Fri Mar 25, 2011 4:00 pm	3	4483	Last post by DSP007 Sat Apr 09, 2011 1:35 pm
Consistent step in baseline on GC/MS by ERA_Erin » Tue Mar 22, 2011 3:04 pm	2	3229	Last post by AICMM Fri Mar 25, 2011 1:55 am
LARGE peak at beginning of GCMS run by eauchem » Mon Mar 07, 2011 9:58 pm	7	4587	Last post by gbold_ch Thu Mar 24, 2011 2:37 pm
LC-MS/Q-TOF by jimnik » Sun Feb 20, 2011 9:47 pm	4	3839	Last post by Gaetan Glauser Thu Mar 24, 2011 7:35 am
Turbomass 5.4 software (Perkin Elmer) by Chroman » Wed Mar 23, 2011 1:33 pm	1	3438	Last post by PMarchio Wed Aug 21, 2013 1:50 pm
Help tuning PerkinElmer clarus 500 MS by Forse » Mon Feb 28, 2011 10:13 am	8	6776	Last post by Forse Wed Mar 23, 2011 10:17 am
Epichlorohydrin by 524.2 by jinxwolf69 » Mon Mar 21, 2011 2:30 pm	3	2995	Last post by krickos Tue Mar 22, 2011 7:00 am
SPME/GC-MS analysis of lipid oxidation volatiles by bucki » Fri Mar 18, 2011 3:13 pm	3	3035	Last post by Peter Apps Mon Mar 21, 2011 6:42 am
Small molecule LC-MS troubles by ManaJane » Thu Mar 03, 2011 9:43 pm	3	2370	Last post by Alp Sat Mar 19, 2011 2:47 am
(M+17)- in NEGATIVE ionization? by Katrina » Fri Mar 18, 2011 12:58 pm	6	3003	Last post by sav Fri Mar 18, 2011 9:35 pm
Edwards mechanical pump rebuilt problem by Rick » Fri Mar 11, 2011 9:42 pm	1	1961	Last post by EnvironLab Fri Mar 18, 2011 6:13 pm
Unable to get rid of noise by raghafr » Thu Feb 10, 2011 10:29 am	3	2247	Last post by suber Fri Mar 18, 2011 5:54 pm
reagent grade for standards in quantitative analysis by Edde » Tue Mar 15, 2011 2:28 pm	7	4143	Last post by Edde Thu Mar 17, 2011 3:22 pm
GC-MS 5973 Failing to Tune MS by smsmurtaza » Mon Feb 21, 2011 6:50 pm	14	7635	Last post by MX304 Tue Mar 15, 2011 2:00 pm
unusual shaped chromatograms in SIM mode recorded by LC/MS by shohreh » Mon Mar 14, 2011 11:20 am	2	2115	Last post by shohreh Tue Mar 15, 2011 12:09 pm
Some questions about phthalate test using PE Clarus 600 by Kingsley » Tue Mar 15, 2011 8:56 am	0	2230	Last post by Kingsley Tue Mar 15, 2011 8:56 am
Difficulty with mass filter electronics. 5973 by Omaejel » Wed Jan 26, 2011 3:21 pm	13	5715	Last post by MX304 Mon Mar 14, 2011 7:46 pm
Amino acid separation by IsotopeC12 » Sun Mar 13, 2011 5:22 am	4	2521	Last post by IsotopeC12 Sun Mar 13, 2011 10:47 pm
Varian rough pump oil level by Jsup » Thu Mar 10, 2011 5:36 am	1	2384	Last post by Rick Fri Mar 11, 2011 9:45 pm
Shimadzu IT- TOF by bobby12 » Fri Mar 11, 2011 8:07 pm	0	1923	Last post by bobby12 Fri Mar 11, 2011 8:07 pm
Waters 600E HPLC pump RS-232 protocol by Dipole » Thu Mar 10, 2011 10:44 pm	4	3458	Last post by buffalo Mon Feb 20, 2012 1:17 pm
Acquisition Software for 5890 to PC by GPSATWORK » Thu Mar 10, 2011 8:12 pm	2	3810	Last post by DSP007 Fri Apr 15, 2011 9:14 am
Ammonium nitrate for LC/MS/MS corrosion problem by Chelsea » Fri Mar 04, 2011 4:47 am	10	4996	Last post by lmh Wed Mar 09, 2011 1:25 pm
Hydrogen carrier gas and GC/MS by littlepeaks » Wed Mar 02, 2011 3:21 am	9	3646	Last post by Peter Apps Wed Mar 09, 2011 7:17 am
Patchouli alcohol by bobby12 » Thu Mar 03, 2011 8:19 pm	2	2262	Last post by bobby12 Mon Mar 07, 2011 9:37 pm
partially deuterated paraffins by willnatalie » Mon Mar 07, 2011 8:25 pm	0	1828	Last post by willnatalie Mon Mar 07, 2011 8:25 pm
HILIC mode in LC/MS by thohry » Fri Mar 04, 2011 3:36 am	1	1853	Last post by Gaetan Glauser Fri Mar 04, 2011 7:38 am
unknown alarm lamp on Dionex Pulsed Electrochemical Detector by janjac1981 » Thu Mar 03, 2011 9:16 am	1	2046	Last post by helty Fri Mar 04, 2011 8:20 am
GC-MS pump down and calibration gas not visible by Punjabi » Tue Mar 01, 2011 3:49 pm	3	2501	Last post by Peter Apps Wed Mar 02, 2011 1:08 pm
Ion Count vs Ionization Time in LCMS IonTrap? by raghafr » Mon Feb 28, 2011 4:53 pm	4	2682	Last post by raghafr Tue Mar 01, 2011 4:16 pm
ANALYSIS OF GLUCOSE BY HPLC by afiqahtarmidi » Tue Mar 01, 2011 12:55 pm	13	7813	Last post by venuzz Fri Mar 18, 2011 10:25 am
carryover in LCMS by Edde » Mon Feb 21, 2011 2:59 pm	2	2369	Last post by Edde Tue Mar 01, 2011 1:34 pm

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