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Please read this! by tom jupille » Thu Mar 11, 2021 7:17 pm	0	7135	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	7117	Last post by tom jupille Thu Mar 11, 2021 6:42 pm
Lower signal with ACN compared to EtAc as inj. solvent GCMS? by Arne » Wed May 04, 2022 10:34 am	3	397	Last post by Arne Tue May 24, 2022 2:21 pm
USEPA 8260 - 'New' Instrument Issues by wss » Tue Apr 19, 2022 12:52 am	9	730	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	242	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	556	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	1066	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	7096	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	507	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	456	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	927	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	764	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	3556	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	936	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	1124	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	780	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	10020	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	1050	Last post by Peggsy Fri Mar 18, 2022 5:02 am
GCMS Cost by Faray » Mon Mar 14, 2022 6:47 am	3	1075	Last post by James_Ball Mon Mar 14, 2022 8:39 pm
AGILENT GC 6890/MSD 5973 with broken hard drive PC by TchankoPharm » Mon Sep 20, 2021 4:32 am	14	3985	Last post by KM-USA Fri Mar 11, 2022 2:05 pm
Varian 1200 connection question by lkohl17 » Fri May 19, 2017 9:15 pm	1	3501	Last post by hayem Fri Mar 04, 2022 4:29 pm
Varian 450GC-300MS installation by hayem » Thu Mar 03, 2022 6:39 am	0	1007	Last post by hayem Thu Mar 03, 2022 6:39 am
Grob Test Mixture reproducibility by agao123 » Wed Mar 02, 2022 6:25 am	2	1017	Last post by Steve Reimer Wed Mar 02, 2022 9:01 pm
How to clean an Agilent GCMS Ion Source: A comprehensive gui by 01310040231 » Sat Jan 15, 2022 12:32 am	1	1621	Last post by agao123 Wed Mar 02, 2022 6:14 pm
Poor peak shape/Low peak area in PAH standard by stdev » Sun Feb 27, 2022 11:10 am	2	1018	Last post by James_Ball Tue Mar 01, 2022 3:21 pm
Agilent 5973 firmware upgrade by paolo.canu@unipd.it » Mon Feb 21, 2022 10:34 pm	3	1173	Last post by paolo.canu@unipd.it Tue Mar 01, 2022 8:34 am
Persistent carry over peaks on UHPLC-MSMS by Ken99 » Fri Dec 22, 2017 11:52 am	7	4390	Last post by stdev Sun Feb 27, 2022 11:22 am
2 dimensional GCxGC peak broadening/wrap arround by agao123 » Sun Feb 13, 2022 9:00 pm	1	1182	Last post by antonk Fri Feb 18, 2022 8:09 am
A few quesions about GC-MS by agao123 » Tue Feb 15, 2022 9:38 pm	1	1180	Last post by dblux_ Wed Feb 16, 2022 7:34 am
HPLC MS - Agilent or Shimadzu? by KevinBe » Wed Feb 09, 2022 8:54 am	11	1612	Last post by Gaetan Glauser Mon Feb 14, 2022 11:05 am
Large Air Leak Agilent 6890 GC/MSD by SLT » Wed Dec 01, 2021 10:07 pm	5	2187	Last post by James_Ball Thu Feb 10, 2022 10:33 pm
transfer line from GC column to MS by sepscientologist » Tue May 24, 2011 6:17 pm	16	8242	Last post by MSCHemist Thu Feb 03, 2022 5:51 pm
PAH analyisis GCMS by CrisTheChemist » Fri Apr 30, 2021 1:21 pm	5	3858	Last post by Peter Apps Sat Jan 29, 2022 2:35 pm
GC/MS fluctuations, normalization, comparability of data by ChrisT » Sun Jul 25, 2021 11:55 am	7	4083	Last post by MichaelVW Fri Jan 07, 2022 12:52 am
Contamination ions encountered in LC/MS by JMB » Thu Jan 06, 2022 8:47 pm	0	1573	Last post by JMB Thu Jan 06, 2022 8:47 pm
(Mass labeled) PFAS standards by BMU_VMW » Tue Jan 04, 2022 1:13 pm	3	1668	Last post by BMU_VMW Wed Jan 05, 2022 8:11 am
5973: random Peaks of mass 40 & 44 by LALman » Mon Nov 15, 2021 9:38 pm	10	2491	Last post by James_Ball Tue Jan 04, 2022 8:09 pm
Shutting down Agilent 597x overnight by wss » Fri Nov 26, 2021 8:06 pm	3	2201	Last post by ThomasStegemann Fri Dec 31, 2021 10:02 am
No ion ratios with Agilent 6430 LCMS by TOXITSO » Fri Dec 10, 2021 11:13 pm	2	2020	Last post by TOXITSO Wed Dec 22, 2021 12:27 am
Integrate individual components of a co-eluted peak? by JMAC_1986 » Sat Dec 11, 2021 1:55 pm	3	1856	Last post by lmh Tue Dec 14, 2021 1:50 pm
Variable peak areas from a Varian 3800/2000 GC/MS by johnelling » Tue Dec 07, 2021 5:45 pm	0	2017	Last post by johnelling Tue Dec 07, 2021 5:45 pm
Baking Column by SBEricD » Fri Nov 26, 2021 10:12 pm	1	2071	Last post by Consumer Products Guy Sat Nov 27, 2021 2:47 pm
Agilent 1100 MSD Trap SL - Vacuum Issue by wss » Tue Nov 03, 2020 9:54 pm	14	5111	Last post by wss Fri Nov 26, 2021 8:13 pm
Baseline disturbances in the TIC by jpetri79 » Mon Nov 22, 2021 8:20 pm	1	2145	Last post by jpetri79 Wed Nov 24, 2021 3:25 pm
Agilent 6490A LC/MS/MS QQQ for PFAS by AIM » Fri Nov 12, 2021 10:31 pm	2	2352	Last post by wss Wed Nov 17, 2021 12:07 am
Cannot achieve constant peak widths by Hajime65 » Tue Oct 19, 2021 2:20 pm	12	2883	Last post by Hajime65 Tue Nov 16, 2021 7:28 pm
Problem with GCMS 7890B-5977A by thuy » Fri Nov 05, 2021 1:43 am	3	2341	Last post by James_Ball Tue Nov 09, 2021 10:45 pm
How to clean difficult stain in LC-MS/MS Cone? by biotechno » Thu Nov 04, 2021 10:50 am	5	2432	Last post by James_Ball Tue Nov 09, 2021 10:37 pm
Robust, Reproducible, and Quantitative Analysis of Thousands by CF - David Hills » Tue Nov 09, 2021 11:00 am	0	2304	Last post by CF - David Hills Tue Nov 09, 2021 11:00 am
Dibutyltin oxide ,n-butyltin trichloride,TNPP in LC MSMS ESI by Ozkan87 » Sat Nov 06, 2021 6:59 am	2	2226	Last post by Ozkan87 Mon Nov 08, 2021 1:35 pm

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