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

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Topics	Replies	Views	Last post
Please read this! by tom jupille » Thu Mar 11, 2021 7:17 pm	0	8469	Last post by tom jupille Thu Mar 11, 2021 7:17 pm
Embedding chromatograms and reports by tom jupille » Thu Mar 11, 2021 6:42 pm	0	8454	Last post by tom jupille Thu Mar 11, 2021 6:42 pm
transfer line from GC column to MS by sepscientologist » Tue May 24, 2011 6:17 pm	17	8953	Last post by fcozzi Tue Aug 09, 2022 1:57 pm
Cyclic Siloxane Contamination by Travisdog2 » Wed Aug 03, 2022 9:45 pm	4	227	Last post by Travisdog2 Mon Aug 08, 2022 2:37 pm
CTC GC-PAL issue with MSD Chemstation by Trishia » Tue Aug 02, 2022 6:25 pm	1	188	Last post by Trishia Fri Aug 05, 2022 4:29 pm
Problem with Agilent chemstation E02 by cesarp » Mon Aug 01, 2022 4:49 pm	4	199	Last post by James_Ball Thu Aug 04, 2022 6:35 pm
Carry Over by NoNameLCMS » Thu Aug 04, 2022 3:10 pm	0	121	Last post by NoNameLCMS Thu Aug 04, 2022 3:10 pm
Triple Quad baseline problem (Waters Xevo TQ-XS) by bseo927 » Wed Aug 03, 2022 1:32 pm	0	140	Last post by bseo927 Wed Aug 03, 2022 1:32 pm
Pressure Builder on Argon for ICP-MS by RobVan3 » Mon Aug 01, 2022 5:56 pm	1	175	Last post by James_Ball Tue Aug 02, 2022 6:14 pm
5973N MSD LCD screen by lespaul » Fri Jun 17, 2022 9:54 pm	5	792	Last post by lespaul Mon Aug 01, 2022 2:52 pm
Sensitivity issue with some pesticides by stdev » Tue Jul 26, 2022 12:54 pm	2	320	Last post by H.Thomas Thu Jul 28, 2022 8:08 am
Decreased response in high points, GC-MS by DReggio » Thu Mar 05, 2015 12:32 am	11	5678	Last post by DReggio Wed Jul 27, 2022 4:34 pm
Temporary/Quick fixes for column bleed by EnviroSciInChi » Mon Jul 18, 2022 6:35 pm	5	496	Last post by James_Ball Thu Jul 21, 2022 8:53 pm
Arsenic in urine/blood - interferences? by MichaelVW » Fri Jul 08, 2022 8:14 pm	1	687	Last post by James_Ball Tue Jul 12, 2022 8:29 pm
Difference in retention time of the quantifier and qualifier by Sophie13 » Mon Jul 04, 2022 7:28 am	2	696	Last post by lmh Tue Jul 12, 2022 12:24 pm
Purge & Trap recommendations by gurlwithgcms » Mon Jun 27, 2022 4:49 pm	8	796	Last post by wss Thu Jun 30, 2022 10:21 pm
Column guard for HPLC-MS (smaller than column) by KevinBe » Tue Jun 28, 2022 3:13 pm	3	684	Last post by KevinBe Thu Jun 30, 2022 8:56 pm
Loss of Metribuzin by Ostravaczech » Sat Jun 11, 2022 1:47 am	6	981	Last post by James_Ball Thu Jun 23, 2022 9:11 pm
He/N2 carrier gas switching by markelh » Wed Jun 22, 2022 9:20 pm	2	732	Last post by James_Ball Thu Jun 23, 2022 8:00 pm
How I could derivatize alkaloids working with LC/MS/MS? by Enriqueta » Tue Jun 21, 2022 9:29 pm	2	718	Last post by Enriqueta Wed Jun 22, 2022 5:56 pm
HP 5970 mass spectrometer issues by AdaptiveChemicalsLLC » Sun Jun 19, 2022 9:40 pm	1	751	Last post by James_Ball Tue Jun 21, 2022 6:47 pm
6890N mainboard not controlling carrier gas by LALman » Sun Jun 19, 2022 5:45 pm	1	669	Last post by James_Ball Tue Jun 21, 2022 6:43 pm
Persistent PEG Carryover in Column by antonio_rosato » Mon Jun 20, 2022 5:52 am	0	695	Last post by antonio_rosato Mon Jun 20, 2022 5:52 am
Help me to improve my signals in LC MS :) by KevinBe » Fri Jun 10, 2022 8:32 pm	5	921	Last post by KevinBe Fri Jun 17, 2022 6:48 am
LCMS Start of end of the day routines? by KevinBe » Thu Jun 09, 2022 8:07 am	2	809	Last post by lmh Thu Jun 16, 2022 10:16 am
LCD files? Shimazu alternative to labsolutions? by KevinBe » Wed Jun 08, 2022 9:59 pm	5	893	Last post by lmh Thu Jun 16, 2022 10:07 am
Spectra for some compounds changed while rt stayed the same by WoeUntoGC » Tue Jun 14, 2022 9:59 pm	2	734	Last post by WoeUntoGC Wed Jun 15, 2022 6:13 pm
[XCalibur] Identify fragment peak from peptide mass spectrum by polklin » Mon Jun 13, 2022 3:41 pm	0	732	Last post by polklin Mon Jun 13, 2022 3:41 pm
New HPLC MS - new c18 - quite a large background noise by KevinBe » Thu Jun 09, 2022 8:39 pm	3	810	Last post by James_Ball Mon Jun 13, 2022 2:10 pm
SIM/SCAN problem with 7890/5977 - Masshunter by jfa-gc » Thu Jun 09, 2022 3:30 pm	4	800	Last post by James_Ball Mon Jun 13, 2022 1:57 pm
APCI background vs esi? by KevinBe » Sun Jun 12, 2022 1:33 pm	0	722	Last post by KevinBe Sun Jun 12, 2022 1:33 pm
GC-MS Load Bitmap Error by -cla- » Fri Jun 10, 2022 12:59 pm	1	740	Last post by MichaelVW Fri Jun 10, 2022 9:23 pm
Repeating plastic contamination in small molecule study by gemdublin » Wed Jun 08, 2022 10:25 am	0	791	Last post by gemdublin Wed Jun 08, 2022 10:25 am
Problem tuning BPA in Waters XEVO TQD by yamibelendiaz » Thu Jun 02, 2022 7:06 pm	0	872	Last post by yamibelendiaz Thu Jun 02, 2022 7:06 pm
Lower signal with ACN compared to EtAc as inj. solvent GCMS? by Arne » Wed May 04, 2022 10:34 am	5	1361	Last post by Arne Sat May 28, 2022 6:19 am
USEPA 8260 - 'New' Instrument Issues by wss » Tue Apr 19, 2022 12:52 am	9	1613	Last post by Steve Reimer Mon May 23, 2022 7:10 pm
Hand Calculating Concentration by cjm » Wed May 18, 2022 3:45 pm	2	1075	Last post by rb6banjo Sat May 21, 2022 1:37 pm
Your favorite UPS setup for GC-MS? by LALman » Wed May 04, 2022 8:47 pm	7	1417	Last post by Multidimensional Fri May 20, 2022 1:57 pm
Stopping MassHunter from returning to initial conditions by wss » Tue Mar 08, 2022 9:12 pm	4	1885	Last post by lmh Tue May 10, 2022 12:32 pm
N2 for GC-MS "Rest" Gas by benhutcherson » Sun May 05, 2019 3:59 pm	31	8240	Last post by LALman Wed May 04, 2022 8:24 pm
Data Analyses @MassHunter Quantitative Software by SN1985 » Sun Apr 24, 2022 7:52 pm	2	1347	Last post by James_Ball Mon Apr 25, 2022 7:56 pm
Waters MRM Integration Mass Lynx 4.1 by s.bayanus » Tue Apr 19, 2022 5:31 pm	1	1250	Last post by per_oxid Mon Apr 25, 2022 6:46 pm
5975/7890A/ OI4470 flow issues by 01310040231 » Mon Apr 04, 2022 6:52 pm	4	1755	Last post by 01310040231 Fri Apr 15, 2022 5:40 pm
Same mass, different retention time. Isomers? by mcg_2022 » Mon Apr 11, 2022 1:00 am	2	1610	Last post by Gaetan Glauser Thu Apr 14, 2022 12:55 pm
Identifying unknown compounds in LC-Q-TOF spectra by wss » Fri Sep 17, 2021 3:52 am	1	4408	Last post by antonio_rosato Wed Mar 30, 2022 2:08 pm
Dual detector GCMS and FID by p.dupuis » Tue Mar 22, 2022 4:23 pm	2	1761	Last post by p.dupuis Tue Mar 29, 2022 12:40 pm
8260 high B.P. non linearity and R.T. locking question. by LALman » Thu Mar 03, 2022 10:15 pm	5	1949	Last post by LALman Thu Mar 24, 2022 9:13 pm
What LCMS system changes warrant test method re-validation? by vickig » Thu Mar 24, 2022 8:43 pm	0	1612	Last post by vickig Thu Mar 24, 2022 8:43 pm
Finnigan MAT ITS 40 Software by labstephan » Sat Oct 11, 2008 7:54 pm	20	11019	Last post by Vivid_Grey Tue Mar 22, 2022 12:24 pm
handover clean of new lab facility by Peggsy » Fri Mar 11, 2022 3:03 am	2	1883	Last post by Peggsy Fri Mar 18, 2022 5:02 am

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