LC-MS, GC-MS, and other - Page 16 - Chromatography Forum

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Welcome! by tom jupille » Thu Mar 11, 2021 6:40 pm	0	56249	Last post by tom jupille Thu Mar 11, 2021 6:40 pm

Topics	Replies	Views	Last post
Shimadzu LCMS-8050 Operator Manual by JBetz » Thu Feb 21, 2019 5:32 pm	0	5030	Last post by JBetz Thu Feb 21, 2019 5:32 pm
Running 5973 "standard" source at high temp by andrew ryder » Fri Jan 11, 2019 12:11 am	10	5666	Last post by Rndirk Thu Feb 21, 2019 8:15 am
MS newbe needs help with spectrum intepretation by McCabe » Mon Nov 12, 2018 3:20 pm	5	4341	Last post by Henrylozano Thu Feb 21, 2019 5:27 am
5977 tuning issues by cjm » Tue Feb 05, 2019 6:27 pm	9	6104	Last post by James_Ball Wed Feb 20, 2019 7:35 pm
hydrocarbon biomarker ID problem by JaneLouise » Sun Feb 17, 2019 10:26 pm	4	3866	Last post by JMB Wed Feb 20, 2019 3:11 pm
quantifying using the TIC by JaneLouise » Sun Feb 17, 2019 10:12 pm	5	6667	Last post by JaneLouise Wed Feb 20, 2019 11:47 am
Agilent GCMS 7890A with 5975C Problems by synex » Mon Feb 11, 2019 1:47 pm	6	4611	Last post by Henrylozano Mon Feb 18, 2019 4:16 pm
Chlorinated phenols contaminate GC column or mass spec? by Simon001 » Wed Feb 06, 2019 10:09 pm	7	5372	Last post by Simon001 Fri Feb 15, 2019 10:04 pm
Use 0.012 N HCL on LC-MS by Xiaopang2 » Thu Feb 14, 2019 3:23 pm	2	4448	Last post by Rndirk Fri Feb 15, 2019 8:23 am
GC/MSMS Full Scan by debora.ferreira » Fri Jan 25, 2019 4:29 pm	5	4823	Last post by debora.ferreira Thu Feb 14, 2019 10:54 am
Software for Finnigan LCQ by cosmo » Mon Feb 04, 2019 4:33 am	2	3511	Last post by cosmo Fri Feb 08, 2019 9:54 pm
use of ammonium fluoride in LC-MS by Gaetan Glauser » Tue Feb 05, 2019 3:42 pm	1	4271	Last post by piracetam Thu Feb 07, 2019 4:15 am
Finnigan mat lcq restoring by adrianomol » Thu Jul 28, 2016 12:19 pm	5	5467	Last post by piracetam Thu Feb 07, 2019 4:09 am
Agilent 5975 hivac 9.9+9 and then goes blank by fbmtorres » Wed Jan 30, 2019 1:14 pm	4	4204	Last post by fbmtorres Wed Feb 06, 2019 4:18 pm
Waters ZQ Pirani Gauge Issue by DJarois » Sat Feb 02, 2019 4:38 am	0	3895	Last post by DJarois Sat Feb 02, 2019 4:38 am
I was fired. Was I wrong? by confusedchemist » Wed Jan 23, 2019 4:16 am	4	7088	Last post by mckrause Fri Feb 01, 2019 12:06 pm
EPA1694- Testing Panadol in water LCMSMS by hts123 » Wed Jan 30, 2019 8:00 pm	2	43324	Last post by hts123 Wed Jan 30, 2019 10:45 pm
Resolution LC/MS-MS by pharm2004 » Wed Jan 30, 2019 8:40 pm	1	3106	Last post by James_Ball Wed Jan 30, 2019 10:21 pm
nanoLC-MS Peak Broadens at Low Concentrations by JLamp391 » Tue Jan 22, 2019 7:14 pm	3	3233	Last post by JMB Thu Jan 24, 2019 5:10 pm
Persistent issue with blank by stdev » Tue Jan 15, 2019 7:52 pm	10	4469	Last post by stdev Fri Jan 18, 2019 4:58 pm
high buffer high acetonitril without precipitation? by Aldijkhuizen » Thu Jan 17, 2019 1:07 pm	4	3437	Last post by Gaetan Glauser Fri Jan 18, 2019 10:59 am
Chemstation LC-MS, Scan Data Storage, Condensed vs. Full? by Rob Burgess » Tue Jan 15, 2019 3:25 pm	0	3544	Last post by Rob Burgess Tue Jan 15, 2019 3:25 pm
Source options for Agilent 5977 by James_Ball » Tue Jul 31, 2018 2:24 pm	10	17398	Last post by James_Ball Mon Jan 14, 2019 2:49 pm
Correction for [Endogenous] in C13 Experiment in MassHunter by SwissNoDak » Fri Jan 11, 2019 11:54 am	0	3918	Last post by SwissNoDak Fri Jan 11, 2019 11:54 am
Looking for advice on our Thermo Dionex Ultimate 3000 by synex » Tue Jan 08, 2019 2:04 pm	4	4020	Last post by synex Fri Jan 11, 2019 9:14 am
Issues with 525.2 surrogates by Bigbear » Fri Jan 04, 2019 1:14 pm	7	4459	Last post by James_Ball Wed Jan 09, 2019 7:39 pm
Optimizing applied LC-MS method by phil1150 » Mon Dec 24, 2018 3:17 pm	1	3464	Last post by Rndirk Mon Jan 07, 2019 8:17 am
Problems with Tune and Thermo MSQ? by fzawadiak » Thu Nov 22, 2018 9:06 pm	1	3285	Last post by fzawadiak Sun Dec 23, 2018 12:20 pm
Method Re-validation? by alexcowart » Thu Dec 06, 2018 2:18 pm	3	3407	Last post by HPLC chemist Sat Dec 22, 2018 1:27 pm
Unrecoverable mass spec fault 2 Agilent MSD5973 by lucar89 » Thu Dec 20, 2018 8:39 am	2	3893	Last post by James_Ball Thu Dec 20, 2018 10:04 pm
FID and MS Peak Areas correlation by phil1150 » Thu Dec 20, 2018 7:30 pm	2	4058	Last post by James_Ball Thu Dec 20, 2018 9:02 pm
Feedback on API4000 coupled to Dionex Ultimate 3000 UHPLC by -zwitterion+ » Sat Dec 08, 2018 6:11 pm	2	3303	Last post by -zwitterion+ Sat Dec 15, 2018 5:56 pm
Looking for MSD Chemstation A for 5971 by benhutcherson » Wed Dec 12, 2018 5:08 pm	2	3263	Last post by benhutcherson Wed Dec 12, 2018 7:54 pm
cis-1,2-Dichloroethene by chloesabrina » Wed Dec 12, 2018 3:21 pm	3	3167	Last post by James_Ball Wed Dec 12, 2018 4:37 pm
Drilled GC inlet liner - purpose? by andrew ryder » Wed Dec 12, 2018 3:30 pm	4	3809	Last post by andrew ryder Wed Dec 12, 2018 4:23 pm
EZ No-Vent GC Column-Mass Spectrometer Connector - any good? by GemmaC » Tue Jan 17, 2017 9:50 am	14	7506	Last post by MSCHemist Tue Dec 11, 2018 2:55 pm
Issues Lens insulator 5977A Agilent MS after cleaning by UNDUEKA » Wed Dec 05, 2018 7:43 am	5	3963	Last post by Bigbear Thu Dec 06, 2018 6:58 pm
robust ms by Aldijkhuizen » Tue Nov 20, 2018 12:38 pm	13	5264	Last post by Rndirk Thu Dec 06, 2018 8:19 am
GCMS maintenance for drug of abuse screening by johan14291 » Mon Dec 03, 2018 1:25 pm	10	4315	Last post by James_Ball Wed Dec 05, 2018 7:22 pm
Ammonium Formate as mobile phase in LCMSMS by hts123 » Sat Dec 01, 2018 1:43 pm	2	3761	Last post by hts123 Sun Dec 02, 2018 8:52 am
Agilent 6490 QQQ capillary cleaning by MX304 » Mon Jan 21, 2013 3:26 pm	27	25437	Last post by James_Ball Fri Nov 30, 2018 7:01 pm
LCMSMS sensitivity drop Anatoxin analysis by James_Ball » Tue Nov 27, 2018 7:10 pm	5	3542	Last post by Steve Reimer Wed Nov 28, 2018 11:14 pm
ICP MS for silver amount change over time by ym3142 » Tue Nov 20, 2018 8:59 pm	4	4762	Last post by James_Ball Wed Nov 28, 2018 4:01 pm
Column flow calc help by jkloepping » Wed Nov 21, 2018 1:35 am	2	3505	Last post by James_Ball Wed Nov 28, 2018 3:57 pm
Sciex API4000 vs Thermo TSQ Quantum Ultra by -zwitterion+ » Mon Oct 29, 2018 5:17 pm	3	3915	Last post by JBetz Mon Nov 26, 2018 7:53 pm
1,4-dioxane by 522 column modifications by andrew ryder » Tue Nov 20, 2018 6:24 pm	1	3362	Last post by James_Ball Wed Nov 21, 2018 8:05 pm
Analysis of a PTFE aqueous dispersion by LC ESI MS by antonio_rosato » Tue Nov 20, 2018 7:42 pm	0	3816	Last post by antonio_rosato Tue Nov 20, 2018 7:42 pm
ion ratio for PCDD-Fs Triple Quadrupole MRM by calvins » Tue Nov 20, 2018 8:14 am	0	3514	Last post by calvins Tue Nov 20, 2018 8:14 am
EI energy for PCDD-Fs by calvins » Tue Nov 20, 2018 8:05 am	0	3503	Last post by calvins Tue Nov 20, 2018 8:05 am
Question about method setting of data dependent NL-MS3 by JCJC1005 » Fri Nov 16, 2018 4:23 am	1	3274	Last post by lmh Mon Nov 19, 2018 12:27 pm

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