Liquid Chromatography

Forum	Topics	Posts	Last post
Ion Chromatography Discussions about IC and related topics Topics: 402	402	1507	Last post Re: Setting retention time wi… by Jofichrom Fri Mar 06, 2026 2:33 pm
Capillary Electrophoresis Discussions about CE, MEKC and related topics Topics: 52	52	110	Last post Re: Sudden Unknown Peak Durin… by Multidimensional Fri Aug 01, 2025 3:47 pm
GPC/GFC/SEC Discussions about gel permeation chromatography / gel filtration chromatography / size exclusion chromatography Topics: 120	120	469	Last post Re: High-temp filtration of c… by DR Tue Jan 06, 2026 5:42 pm

Post a new topic

11917 topics

Announcements	Replies	Views	Last post
Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	85123	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
3-Hydroxy Acetophenone by Chandresh K. Soni » Sat Sep 19, 2009 5:54 am	8	2562	Last post by praveenpaliwal Mon Oct 05, 2009 8:01 am
Detector output to computer..? by pipettemonkey » Fri Sep 25, 2009 4:30 pm	6	2393	Last post by ScottHorn Sat Oct 03, 2009 7:09 pm
Surfactant removal by Emi » Thu Sep 24, 2009 6:10 pm	7	2020	Last post by XL Sat Oct 03, 2009 6:28 am
method carry over problem (very hydrophobic protein) by miro2009 » Thu Oct 01, 2009 8:48 pm	8	2707	Last post by Uwe Neue Sat Oct 03, 2009 12:29 am
Standard addition by CSV » Tue Sep 29, 2009 9:11 am	20	3941	Last post by HW Mueller Fri Oct 02, 2009 3:51 pm
choice of ion-paring agent by miro2009 » Thu Oct 01, 2009 8:58 pm	4	1975	Last post by HW Mueller Fri Oct 02, 2009 3:34 pm
Related Substance testing of an inpurity ... by seamoro » Fri Oct 02, 2009 10:44 am	3	1717	Last post by DR Fri Oct 02, 2009 1:54 pm
L-61 USP HPLC columsn provider by ccharles » Thu Oct 01, 2009 5:21 pm	2	2084	Last post by grzesiek Fri Oct 02, 2009 6:17 am
what is the concentration in this case please ? by Newchromatographer » Thu Oct 01, 2009 11:42 am	6	4142	Last post by JGK Wed Oct 07, 2009 9:36 pm
Ion pairing on Carbon Based Stationary Phase by M. Farooq » Mon Sep 28, 2009 5:41 am	5	3343	Last post by Kostas Petritis Tue Sep 29, 2009 8:43 pm
Method Comparison / Method Transfer by Sallybeetle » Mon Sep 28, 2009 9:17 pm	5	1737	Last post by grzesiek Tue Sep 29, 2009 2:11 pm
HP 1050 UV-Vis method transfer to PE Series 200 by djletin » Fri Sep 18, 2009 7:24 pm	7	2273	Last post by tom jupille Tue Sep 29, 2009 5:40 am
Issue with amino acid analysis by zilal » Fri Jul 24, 2009 5:34 pm	13	4761	Last post by DWR Tue Sep 29, 2009 12:09 am
Relative Response Factor Equivalence Between 2 methods by DeniseHeinz » Thu Sep 24, 2009 7:55 pm	11	4032	Last post by grzesiek Mon Sep 28, 2009 3:20 pm
problem with background noise by lab tech » Sat Sep 19, 2009 7:35 pm	4	2099	Last post by lab tech Sun Sep 27, 2009 10:54 am
alendronate usp by antolezcano » Fri Sep 25, 2009 3:07 pm	1	1182	Last post by grzesiek Fri Sep 25, 2009 5:42 pm
NO2/NO3 in a metals lab? by Bigbear » Fri Jul 31, 2009 1:50 pm	4	1490	Last post by tom jupille Fri Sep 25, 2009 5:02 pm
Help locked out of Chemstation by bgiles » Fri Sep 25, 2009 4:41 pm	4	4999	Last post by LC_addict Tue Nov 17, 2009 12:36 pm
Identifying peptides based on HPLC retention by pipettemonkey » Wed Sep 23, 2009 9:08 pm	2	1388	Last post by Kostas Petritis Thu Sep 24, 2009 2:56 pm
buffering solutions at same pH, but different temperatures.. by dkreller » Wed Sep 23, 2009 8:21 pm	5	1858	Last post by HW Mueller Thu Sep 24, 2009 8:08 am
damage calculation? by pipettemonkey » Wed Sep 23, 2009 8:57 pm	1	1192	Last post by Uwe Neue Wed Sep 23, 2009 10:36 pm
groundcorp bankrupt? by pipettemonkey » Wed Sep 23, 2009 8:39 pm	1	1319	Last post by Uwe Neue Wed Sep 23, 2009 10:33 pm
Falsly inflated results... by lnaylor » Mon Sep 21, 2009 6:13 pm	18	2824	Last post by lnaylor Wed Sep 23, 2009 8:07 pm
Gradient Elution: Delays Between Runs? by dkreller » Fri Sep 18, 2009 7:40 pm	11	3040	Last post by DR Tue Sep 22, 2009 1:42 pm
Result ID's by mroosi54 » Mon Sep 21, 2009 8:21 pm	1	1247	Last post by DR Tue Sep 22, 2009 1:33 pm
moving peak by smkh » Sun Sep 06, 2009 3:24 pm	36	3780	Last post by danko Mon Sep 21, 2009 7:52 am
Purine compound stability in solution by vikmurush » Sun Sep 20, 2009 7:46 pm	2	1275	Last post by vikmurush Sun Sep 20, 2009 11:50 pm
april 7th meeting by pipettemonkey » Fri Sep 11, 2009 7:32 am	6	1654	Last post by Consumer Products Guy Sat Sep 19, 2009 3:20 pm
Separation of D & L phenylephrin by Chandresh K. Soni » Sat Sep 19, 2009 5:58 am	1	1193	Last post by Uwe Neue Sat Sep 19, 2009 1:42 pm
Is there an accepted RT variation norm ? Please indicate . by Mayank72 » Tue Sep 08, 2009 11:25 am	11	3286	Last post by Jade.Barker Fri Sep 18, 2009 6:48 pm
Phenylephrin Hydrochloride by Chandresh K. Soni » Wed Sep 16, 2009 10:57 am	4	2729	Last post by Chandresh K. Soni Fri Sep 18, 2009 12:16 pm
scale up difference by rgamage » Thu Sep 17, 2009 5:50 am	3	1659	Last post by tom jupille Thu Sep 17, 2009 8:49 pm
Acetone to replace Acetonitrile for LC-MS application by chhubert » Thu Sep 10, 2009 1:22 am	3	2540	Last post by Uwe Neue Thu Sep 17, 2009 4:46 pm
Waters PorapakRDX SPE / Varian BondElut SPE by bisnettrj2 » Sat Sep 12, 2009 10:29 pm	12	2182	Last post by Uwe Neue Thu Sep 17, 2009 4:18 pm
1100 needle not seating by db32 » Thu Sep 10, 2009 7:28 pm	9	3488	Last post by db32 Thu Sep 17, 2009 4:15 pm
resolution between impurities "official" requireme by ricopalazo » Thu Sep 17, 2009 8:34 am	3	2467	Last post by tom jupille Thu Sep 17, 2009 2:57 pm
Purity factor threshold by Dominique » Sat Sep 12, 2009 4:19 pm	5	7467	Last post by HPLCCONSULT Wed Sep 16, 2009 10:03 pm
separations of antibiotics by Miguel » Wed Sep 16, 2009 11:16 am	1	1409	Last post by sam.pedraglio Wed Sep 16, 2009 4:19 pm
filters ? what is the different ? by Newchromatographer » Mon Sep 14, 2009 3:34 pm	2	1468	Last post by Newchromatographer Wed Sep 16, 2009 11:36 am
Topiramate by Chandresh K. Soni » Wed Sep 16, 2009 11:08 am	0	1268	Last post by Chandresh K. Soni Wed Sep 16, 2009 11:08 am
Propofol by Chandresh K. Soni » Wed Sep 16, 2009 11:01 am	0	1273	Last post by Chandresh K. Soni Wed Sep 16, 2009 11:01 am
RP HPLC for separation of proteins & gradient elution by stevepluto » Tue Sep 15, 2009 5:48 pm	5	3740	Last post by grzesiek Wed Sep 16, 2009 8:37 am
Oligonucleotide RP-HPLC Peak by HPLC_Help » Tue Sep 15, 2009 1:00 pm	3	2357	Last post by grzesiek Tue Sep 15, 2009 2:03 pm
sulphate/sulphate with ri detector by mkatsiabani » Fri Sep 11, 2009 8:45 am	8	1982	Last post by Markus Laeubli, Metrohm Tue Sep 15, 2009 12:26 pm
Sample loop in Waters 717plus autosampler by chhubert » Mon Sep 14, 2009 8:55 am	5	5284	Last post by chhubert Tue Sep 15, 2009 4:16 am
Contaminated laboratory water by bisnettrj2 » Mon Sep 14, 2009 4:34 am	4	2053	Last post by Bruce Hamilton Mon Sep 14, 2009 9:18 pm
chemometry HPLC HPTLC use by prashant.dev.7 » Mon Sep 14, 2009 6:09 am	1	1630	Last post by tom jupille Mon Sep 14, 2009 6:03 pm
Varian 410 and Star 5.5 - help? by cat_chemist » Mon Sep 14, 2009 1:04 am	2	2440	Last post by cat_chemist Mon Sep 14, 2009 11:07 am
about HPLC and HPTLC journals by prashant.dev.7 » Mon Sep 14, 2009 5:19 am	0	2054	Last post by prashant.dev.7 Mon Sep 14, 2009 5:19 am
Eclipse XDB Vs Eclipse Plus by Kwet » Tue Sep 01, 2009 6:43 am	33	16467	Last post by mohan_2008 Sun Sep 13, 2009 3:15 am

Post a new topic

11917 topics

Return to Board Index

Who is online

In total there are 24 users online :: 2 registered, 0 hidden and 22 guests (based on users active over the past 5 minutes)
Most users ever online was 11462 on Mon Dec 08, 2025 9:32 pm

Users browsing this forum: Ahrefs [Bot], Google [Bot] and 22 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 & Beverage, Environmental, (Bio)Pharmaceutical, Bioclinical, Liquid Chromatography, Gas Chromatography and Mass Spectrometry.

Gas Chromatography

Mass Spectrometry

Related Sites

Separation Science

Analytical Training Solutions

Registration

Log in

Part of Separation Science