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

Post a new topic

5249 topics

Announcements	Replies	Views	Last post
Welcome! by tom jupille » Thu Mar 11, 2021 6:40 pm	0	8012	Last post by tom jupille Thu Mar 11, 2021 6:40 pm

Stay ahead and improve your skills! Our team will send you tailored information on new separation science methods and applications!

Register now with your professional email address.

Topics	Replies	Views	Last post
Please read this! by tom jupille » Thu Mar 11, 2021 7:17 pm	0	7851	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	7838	Last post by tom jupille Thu Mar 11, 2021 6:42 pm
Difference in retention time of the quantifier and qualifier by Sophie13 » Mon Jul 04, 2022 7:28 am	1	128	Last post by James_Ball Tue Jul 05, 2022 2:56 pm
Purge & Trap recommendations by gurlwithgcms » Mon Jun 27, 2022 4:49 pm	8	312	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	226	Last post by KevinBe Thu Jun 30, 2022 8:56 pm
Loss of Metribuzin by Ostravaczech » Sat Jun 11, 2022 1:47 am	6	536	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	295	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	299	Last post by Enriqueta Wed Jun 22, 2022 5:56 pm
5973N MSD LCD screen by lespaul » Fri Jun 17, 2022 9:54 pm	4	358	Last post by James_Ball Wed Jun 22, 2022 3:26 pm
HP 5970 mass spectrometer issues by AdaptiveChemicalsLLC » Sun Jun 19, 2022 9:40 pm	1	353	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	282	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	280	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	507	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	413	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	463	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	333	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	321	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	409	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	412	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	327	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	350	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	377	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	462	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	974	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	1206	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	680	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	1009	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	1485	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	7688	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	936	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	859	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	1346	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	1205	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	3990	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	1357	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	1542	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	1197	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	10531	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	1473	Last post by Peggsy Fri Mar 18, 2022 5:02 am
GCMS Cost by Faray » Mon Mar 14, 2022 6:47 am	3	1497	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	4437	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	3915	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	1410	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	1424	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	2053	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	1427	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	1593	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	4843	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	1579	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	1594	Last post by dblux_ Wed Feb 16, 2022 7:34 am

Post a new topic

5249 topics

Return to Board Index

Who is online

In total there are 21 users online :: 1 registered, 0 hidden and 20 guests (based on users active over the past 5 minutes)
Most users ever online was 1117 on Mon Jan 31, 2022 2:50 pm

Users browsing this forum: Bing [Bot] and 20 guests

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Latest Blog Posts from Separation Science

Separation Science offers free learning from the experts covering methods, applications, webinars, eSeminars, videos, tutorials for users of liquid chromatography, gas chromatography, mass spectrometry, sample preparation and related analytical techniques.

Subscribe to our eNewsletter with daily, weekly or monthly updates: Food, Environmental, (Bio)Pharmaceutical, Bioclinical, Liquid Chromatography, Gas Chromatography and Mass Spectrometry.