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Please read this! by tom jupille » Thu Mar 11, 2021 7:17 pm	0	11349	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	11316	Last post by tom jupille Thu Mar 11, 2021 6:42 pm
Agilent Masshunter unknown analysis report template by hts123 » Tue Mar 21, 2023 3:07 am	0	23	Last post by hts123 Tue Mar 21, 2023 3:07 am
Scheduled MRM on QTRAP 4000 by Ostravaczech » Mon Mar 20, 2023 10:08 pm	0	33	Last post by Ostravaczech Mon Mar 20, 2023 10:08 pm
Obtaining mass spectra of rider peaks by jpetri79 » Thu Feb 23, 2023 2:53 pm	2	156	Last post by JMB Mon Mar 20, 2023 8:37 pm
unresponsive flow diverter valve in Sciex 5500 by JurijTrontelj » Fri Mar 17, 2023 12:38 pm	2	94	Last post by JurijTrontelj Mon Mar 20, 2023 1:36 pm
HP 5970B will not perform TUNE by lsmith » Tue Mar 14, 2023 12:03 am	7	201	Last post by lsmith Fri Mar 17, 2023 12:43 am
The effect of increasing interface temperature GC-MS by Karib » Sun Mar 12, 2023 7:11 pm	1	132	Last post by antonk Wed Mar 15, 2023 8:18 am
GCMS sideboard repair? by chronomag » Thu Dec 15, 2022 12:22 am	13	736	Last post by mathieu_stability Wed Mar 15, 2023 7:51 am
Baseline Drop off during oven ramp by Matt Spec » Fri Feb 24, 2023 5:08 pm	2	121	Last post by mathieu_stability Wed Mar 15, 2023 7:46 am
Thermo TSQ Quantum Ultra - Help? by mburleson » Tue Oct 18, 2022 9:44 am	6	1284	Last post by trozen Tue Mar 14, 2023 4:07 am
Tuning TSQ Quantum GC for NIST libraries by lgchrom » Wed Mar 01, 2023 3:13 pm	1	123	Last post by hcs Wed Mar 08, 2023 2:02 pm
Zero air vs. pure nitrogen as ESI source gas for LC-MS/MS. by bcd_GCLCMSMS » Tue Feb 28, 2023 2:22 pm	5	299	Last post by bcd_GCLCMSMS Fri Mar 03, 2023 1:55 pm
Compound tuning by injection: Acid or Base? by danastley » Wed Mar 01, 2023 1:00 pm	2	140	Last post by James_Ball Wed Mar 01, 2023 9:42 pm
Dropping Continuous Calibration Response GCMS by PurplePeacock » Tue Feb 21, 2023 12:58 am	3	163	Last post by James_Ball Fri Feb 24, 2023 7:45 pm
Thermo DSQ II vacuum leak by Jake » Thu Feb 09, 2023 10:06 pm	3	215	Last post by Jake Wed Feb 22, 2023 10:06 pm
Internal standard selection in untargeted area normalization by francesco2995 » Wed Feb 22, 2023 2:15 pm	1	91	Last post by Steve Reimer Wed Feb 22, 2023 2:41 pm
ITSD Drift by New2QQQ » Thu Feb 09, 2023 1:50 am	4	222	Last post by Gaetan Glauser Fri Feb 17, 2023 10:04 am
Mass Spec PCB Repair? by mburleson » Sun Feb 12, 2023 12:39 pm	2	178	Last post by mburleson Wed Feb 15, 2023 4:04 pm
Trace GC - Polaris Q by lanciafiamme » Tue Feb 14, 2023 10:42 am	0	145	Last post by lanciafiamme Tue Feb 14, 2023 10:42 am
Difluoromethane by GC-MS by wss » Tue Jan 17, 2023 2:14 am	6	354	Last post by aeroPH Wed Feb 08, 2023 11:14 pm
Consistent leak problems on Thermo 1310 with ISQ 7000 by ddoerder » Thu Feb 02, 2023 2:27 pm	1	173	Last post by ddoerder Mon Feb 06, 2023 12:04 pm
Unified name for added or lost "fragments" in Mass Spec by sbashkyrtsev » Mon Jan 30, 2023 10:04 am	2	161	Last post by sbashkyrtsev Thu Feb 02, 2023 8:21 am
Losing Molecular Ion LCMSMS by James_Ball » Tue Jan 24, 2023 7:33 pm	7	309	Last post by James_Ball Wed Feb 01, 2023 6:47 pm
Internal Standard positive correlation to [Analyte] by toomunchsam » Sun Jan 29, 2023 9:22 pm	6	276	Last post by toomunchsam Wed Feb 01, 2023 3:31 am
Analyte stability vs instrument stability by brinker » Fri Jan 13, 2023 10:04 pm	2	200	Last post by James_Ball Mon Jan 16, 2023 3:36 pm
LC/MS nitrogen generator maintenance and alternatives by Trishia » Tue Jan 10, 2023 7:49 pm	3	285	Last post by James_Ball Thu Jan 12, 2023 5:04 pm
Very narrow collision energy peak for MRM. by bcd_GCLCMSMS » Wed Oct 19, 2022 7:39 pm	5	1466	Last post by bcd_GCLCMSMS Tue Jan 03, 2023 7:22 pm
peaks that come and go by brinker » Fri Dec 16, 2022 9:52 pm	3	355	Last post by brinker Thu Dec 22, 2022 5:06 pm
LCMS Help! by vvelozb » Wed Dec 21, 2022 7:59 pm	1	296	Last post by Steve Reimer Wed Dec 21, 2022 11:50 pm
DB-5 column in a GC/MS? by Eluter » Wed Sep 19, 2012 10:00 pm	7	4188	Last post by Saba Nazir Wed Dec 21, 2022 3:54 am
Leak- 524.2 P&T EST Analytical by 4eyes » Thu Dec 15, 2022 3:47 pm	2	254	Last post by DReggio Fri Dec 16, 2022 9:42 pm
Reputable GC-MS repair services near Chicago? by lespaul » Sun Dec 04, 2022 11:01 pm	2	409	Last post by James_Ball Mon Dec 12, 2022 5:04 pm
Help with vintage GCMS - 5972 by chronomag » Thu Dec 01, 2022 2:23 am	6	496	Last post by Consumer Products Guy Thu Dec 08, 2022 3:18 pm
5973 Part Number Needed by cjm » Thu Dec 01, 2022 10:00 pm	2	378	Last post by cjm Tue Dec 06, 2022 12:44 pm
Thermal Desorption GC/MS Internal Standard Addition by CrisTheChemist » Tue Nov 29, 2022 11:51 am	9	441	Last post by rb6banjo Sun Dec 04, 2022 3:00 am
Natural small compounds Molecular Kit for a QSRR approach by Francesco29 » Tue Nov 22, 2022 10:19 am	1	350	Last post by JMB Fri Nov 25, 2022 12:48 am
Newbie in HPLC-MS: does this look alright? by KevinBe » Tue Nov 15, 2022 10:48 am	15	961	Last post by KevinBe Thu Nov 24, 2022 10:32 pm
Agilent MSD Service Manual by craftti » Wed May 24, 2017 2:24 pm	6	5229	Last post by instrumentdude Wed Nov 23, 2022 5:44 pm
GC-MS-HS Benzene peaks overlaid by nicolo.bellora » Mon Oct 24, 2022 12:09 pm	2	2177	Last post by James_Ball Wed Nov 16, 2022 6:44 pm
MassHunter Enviroquant by Ostravaczech » Sat Nov 05, 2022 9:15 pm	3	554	Last post by James_Ball Wed Nov 16, 2022 6:42 pm
Repair Prioritization? by mburleson » Fri Nov 04, 2022 12:02 pm	3	556	Last post by tom jupille Mon Nov 07, 2022 9:18 pm
PAH method for GC MS MS with PTV (CIS Gerstel) by Hefe1995 » Tue Nov 01, 2022 1:47 pm	2	2189	Last post by TCCrab Thu Nov 03, 2022 5:57 pm
MS Spectrum Not Same - Xevo G2 Qtof with Xevo TQ-S Micro by anuarhassim » Fri Sep 09, 2022 4:46 am	2	1672	Last post by carlo.annaratone Wed Nov 02, 2022 4:20 pm
EPA 522 Confirmatory Ion interference. by bcd_GCLCMSMS » Tue Sep 13, 2022 1:51 pm	12	2393	Last post by LALman Wed Nov 02, 2022 2:16 am
Leak and restriction error in GC-MS by melikekb » Mon Oct 24, 2022 5:27 pm	1	1173	Last post by wss Sun Oct 30, 2022 9:28 pm
Method translation / LC-MS TO LC-QTOF by no_peak » Thu Oct 13, 2022 7:28 pm	4	1212	Last post by millerk8561 Thu Oct 20, 2022 5:17 pm
HCl in MS by Mike H. » Thu Oct 13, 2022 12:44 pm	4	1218	Last post by lmh Thu Oct 20, 2022 10:24 am
Cannot achieve constant peak widths by Hajime65 » Tue Oct 19, 2021 2:20 pm	15	4635	Last post by mburleson Tue Oct 18, 2022 8:36 pm
MRM and doing what I've been told not to do! by Travisdog2 » Tue Oct 04, 2022 7:26 pm	9	1593	Last post by James_Ball Thu Oct 13, 2022 7:45 pm

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