Liquid Chromatography

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Ion Chromatography Discussions about IC and related topics Topics: 403	403	1508	Last post Large water dip on ICS-6000 by NitroJennAtom Wed Jun 17, 2026 3:20 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

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11923 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	124288	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Effect of solvent on normal phase by Stephan » Thu Nov 03, 2005 12:10 pm	1	2586	Last post by DR Thu Nov 03, 2005 1:36 pm
Fraction collection dilution by KarenJ » Tue Nov 01, 2005 5:27 pm	2	2504	Last post by JA Wed Nov 02, 2005 11:46 pm
Hig pressure PROBLEM from PIC-A & TBA Ion Pairing Reagen by Judy » Wed Nov 02, 2005 8:57 pm	1	2355	Last post by Uwe Neue Wed Nov 02, 2005 10:01 pm
Help with hydrocodone bitartrate tailing issue by pko142 » Wed Nov 02, 2005 5:54 am	3	3178	Last post by MG Wed Nov 02, 2005 7:47 pm
Increase in retention time by veronika » Mon Oct 31, 2005 9:46 pm	6	3236	Last post by veronika Wed Nov 02, 2005 8:50 am
C18 or C8 by lotussss » Tue Nov 01, 2005 9:38 am	3	2904	Last post by tom jupille Wed Nov 02, 2005 12:58 am
Repeatability, sugar analysis, DX 600 by zhuwj007 » Fri Oct 28, 2005 3:31 am	1	2465	Last post by Petr Jandik Mon Oct 31, 2005 6:00 pm
number of injections for test preparations in assay analysis by sathyanarayanan » Mon Oct 31, 2005 3:49 am	2	2509	Last post by DR Mon Oct 31, 2005 5:58 pm
Folic Acid USP by jcstrides » Sun Sep 25, 2005 11:07 am	6	3744	Last post by pko142 Mon Oct 31, 2005 3:08 am
polymeric reversed phase columns by bert » Mon Oct 24, 2005 9:39 am	7	4156	Last post by tom jupille Fri Oct 28, 2005 5:49 pm
Realtive Response Factors by michaelcarolus » Thu Oct 27, 2005 7:51 pm	2	2787	Last post by michaelcarolus Fri Oct 28, 2005 6:02 am
Spring for liquid end by agrp87 » Thu Oct 27, 2005 10:38 pm	0	2436	Last post by agrp87 Thu Oct 27, 2005 10:38 pm
Positional Isomers by JBush » Thu Oct 20, 2005 3:38 pm	9	4553	Last post by JBush Thu Oct 27, 2005 3:30 pm
Kojic acid by kuzao » Thu Oct 27, 2005 11:38 am	2	2770	Last post by kuzao Thu Oct 27, 2005 3:14 pm
Risedronate by Susanne » Thu Oct 20, 2005 11:17 am	5	3415	Last post by EH Wed Oct 26, 2005 6:11 pm
smallest particle stationary phase for LC by chembot » Wed Oct 26, 2005 2:41 am	2	3112	Last post by Uwe Neue Wed Oct 26, 2005 4:20 pm
chromatograph for PVC by adina » Wed Oct 26, 2005 3:39 pm	0	2564	Last post by adina Wed Oct 26, 2005 3:39 pm
ELSD signal by Monika » Mon Oct 24, 2005 11:06 am	9	6821	Last post by Kostas Petritis Wed Oct 26, 2005 3:24 pm
anion exchange of proteins by SSGG » Wed Oct 12, 2005 12:32 am	8	5389	Last post by chembot Wed Oct 26, 2005 2:43 am
base line Hump by SRIMAN » Sat Oct 22, 2005 5:02 am	7	6154	Last post by Kostas Petritis Tue Oct 25, 2005 6:16 pm
Sugar Separation Problems by josebenjamin » Thu Oct 20, 2005 2:43 pm	14	7243	Last post by josebenjamin Tue Oct 25, 2005 1:10 pm
About TFA by mdyo » Fri Aug 19, 2005 5:50 pm	54	23983	Last post by HW Mueller Mon Oct 24, 2005 7:46 am
Correct GLP for carryover in a sequence run by unmgvar » Thu Oct 13, 2005 9:00 pm	4	4062	Last post by unmgvar Sun Oct 23, 2005 8:01 pm
Buffers by just me » Thu Oct 20, 2005 1:59 pm	4	3327	Last post by Bill Tindall Sat Oct 22, 2005 3:13 pm
Diluent Peak by aruna sharma » Fri Oct 21, 2005 4:10 pm	1	3255	Last post by tom jupille Fri Oct 21, 2005 6:59 pm
Chromquest help by josebenjamin » Fri Oct 14, 2005 7:12 pm	3	3808	Last post by josebenjamin Fri Oct 21, 2005 4:50 pm
internal standard by rima patel » Wed Oct 19, 2005 2:12 pm	2	3025	Last post by james little Thu Oct 20, 2005 11:48 pm
HELP : negative baseline drift on RI detector by h.piatkowski@comalc.com » Tue Oct 18, 2005 1:25 pm	1	3156	Last post by tom jupille Thu Oct 20, 2005 11:11 pm
Entantioseparation of D,L-3-phenyllactic acid by Malte.Beringer » Thu Oct 20, 2005 9:52 am	3	3258	Last post by Cliff Mitchell Thu Oct 20, 2005 8:46 pm
Retention of small amine by Thunderbunny » Tue Oct 18, 2005 10:42 am	16	6856	Last post by SIELC_Tech Thu Oct 20, 2005 7:37 pm
Corona Aerosol Discharge detectors by DR » Thu Oct 20, 2005 2:43 pm	2	3006	Last post by Kostas Petritis Thu Oct 20, 2005 6:17 pm
cryofocusing used on hplc? by smiley » Wed Oct 19, 2005 7:37 am	6	3668	Last post by Kostas Petritis Thu Oct 20, 2005 6:10 pm
HPLC, for "Munchausen syndrome by proxy" diagnosti by Kazimierz » Thu Oct 20, 2005 5:43 pm	0	2736	Last post by Kazimierz Thu Oct 20, 2005 5:43 pm
Assay of Quaternary Amine by GoldLeader » Thu Oct 20, 2005 1:57 pm	1	2714	Last post by Chris Pohl Thu Oct 20, 2005 5:13 pm
Derivatisation HELP needed by just me » Sun Oct 16, 2005 7:01 pm	4	3276	Last post by just me Thu Oct 20, 2005 1:56 pm
Specification for impurities by ajaib5 » Wed Oct 19, 2005 7:54 am	5	3038	Last post by DR Thu Oct 20, 2005 1:48 pm
Loss of sensitivity SEC-column by dingemap » Thu Oct 20, 2005 6:11 am	2	2976	Last post by HW Mueller Thu Oct 20, 2005 7:58 am
Sulfur Assay by redzilla » Thu Oct 13, 2005 10:45 pm	6	5731	Last post by tom jupille Thu Oct 20, 2005 6:21 am
Primesep 100 and Primesep 200 columns by Victor » Tue Oct 18, 2005 11:20 am	16	9658	Last post by Yury Zelechonok Thu Oct 20, 2005 2:38 am
silica/alumina chromatography by ap01 » Wed Oct 12, 2005 1:37 pm	3	3459	Last post by ap01 Wed Oct 19, 2005 1:58 pm
Protein 'purity' by HPLC by SSGG » Tue Oct 18, 2005 9:37 am	4	4875	Last post by SSGG Wed Oct 19, 2005 9:19 am
Column Life on Storage by syx » Mon Oct 17, 2005 12:53 am	8	6482	Last post by syx Wed Oct 19, 2005 12:52 am
White Fuzz On The Fittings by syx » Mon Oct 17, 2005 12:47 am	4	3240	Last post by tom jupille Tue Oct 18, 2005 12:46 pm
Mass balance by mpepler » Thu Oct 13, 2005 3:10 am	21	10991	Last post by Rob Burgess Tue Oct 18, 2005 11:02 am
mobile phase - HPLC by veronika » Fri Oct 14, 2005 4:31 pm	9	4572	Last post by HW Mueller Tue Oct 18, 2005 6:47 am
HPLC-SEC column problem by TimJ » Tue Oct 11, 2005 9:07 am	9	5360	Last post by tom jupille Mon Oct 17, 2005 5:11 pm
Impurities with new or old column by GT » Fri Oct 14, 2005 8:45 am	3	3036	Last post by tom jupille Mon Oct 17, 2005 4:56 pm
Size particle by lotussss » Sun Oct 16, 2005 11:23 am	1	2572	Last post by tom jupille Sun Oct 16, 2005 9:13 pm
The pressure of LC fluctuates by shangyer » Wed Oct 12, 2005 1:44 pm	2	3082	Last post by Consumer Products Guy Fri Oct 14, 2005 3:08 pm
Help for a new method by angupa » Mon Oct 10, 2005 3:45 pm	2	2845	Last post by B.Laudrup Fri Oct 14, 2005 8:31 am

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