Liquid Chromatography

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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

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11916 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	83748	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
column rescue ideas by ande2922 » Tue Jul 19, 2005 8:09 pm	5	3720	Last post by Chris Pohl Mon Aug 08, 2005 4:02 pm
Fatty acids/CLA by HPLC? by Lotus » Thu Aug 04, 2005 2:13 pm	10	4954	Last post by Chris Pohl Mon Aug 08, 2005 3:50 pm
Waters 410 Refractometer Problems by stappg » Thu Aug 04, 2005 3:08 am	4	3396	Last post by stappg Mon Aug 08, 2005 2:45 am
Incresing pressure in C-18 column by DEED » Sun Aug 07, 2005 1:17 am	1	2272	Last post by moon704520 Sun Aug 07, 2005 9:21 am
Test Mix by tom_mizukami » Fri Aug 05, 2005 8:46 pm	1	2601	Last post by tom_mizukami Fri Aug 05, 2005 8:48 pm
Column test mixtures / procedures by Emperor_Moo » Tue Aug 02, 2005 2:55 pm	7	3446	Last post by Emperor_Moo Fri Aug 05, 2005 11:35 am
Cooling of HP ChemStation by laufentchen » Fri Aug 05, 2005 8:44 am	0	2344	Last post by laufentchen Fri Aug 05, 2005 8:44 am
Working Standard by ajaib5 » Wed Jul 27, 2005 4:58 am	4	3192	Last post by oaquattro Fri Aug 05, 2005 2:02 am
Question about a stability-indicating method development by Apple_insci » Thu Aug 04, 2005 4:20 am	1	2379	Last post by amaryl Thu Aug 04, 2005 7:45 am
Peaks larger then expected by leadazide » Thu Jul 21, 2005 8:44 am	18	5896	Last post by leadazide Wed Aug 03, 2005 7:34 am
Substitued triazole analysis by Provetech » Tue Aug 02, 2005 3:31 pm	1	2797	Last post by Uwe Neue Tue Aug 02, 2005 8:58 pm
Estimating new compound pKa using HPLC by KarenJ » Tue Aug 02, 2005 3:36 pm	1	2723	Last post by Uwe Neue Tue Aug 02, 2005 8:56 pm
column for very high pressure chromatography by lotusw » Mon Aug 01, 2005 5:37 pm	3	2855	Last post by Uwe Neue Tue Aug 02, 2005 8:51 pm
HPLC training in the UK by tom jupille » Tue Aug 02, 2005 7:06 pm	0	2504	Last post by tom jupille Tue Aug 02, 2005 7:06 pm
Additive by danko » Thu Jul 28, 2005 2:30 pm	10	4429	Last post by danko Tue Aug 02, 2005 3:28 pm
Quantitation of Sodium Permagnate by pochengjean » Thu Jul 28, 2005 8:29 pm	6	3170	Last post by HW Mueller Tue Aug 02, 2005 7:26 am
chloro-benzoyl chloride impurity or assay method by dxydxyok » Tue Jul 26, 2005 3:15 am	5	4028	Last post by dxydxyok Tue Aug 02, 2005 3:51 am
To evaluate other suppliers of columns by Tequila » Mon Aug 01, 2005 12:48 pm	2	2964	Last post by tom jupille Mon Aug 01, 2005 2:54 pm
SPE and HPLC of Amines by Frosty » Thu Jul 28, 2005 9:24 am	11	4866	Last post by HW Mueller Mon Aug 01, 2005 2:46 pm
extra peak appeared before analyte peak by tlili » Tue Jul 26, 2005 12:40 pm	8	5396	Last post by tlili Mon Aug 01, 2005 12:23 pm
Luna 5u c18(2) by dwalker » Wed Jul 27, 2005 8:00 pm	7	5453	Last post by Victor Mon Aug 01, 2005 11:10 am
Chiral method for pramipexole by N.V.V.S.S. RAMAN » Mon Aug 01, 2005 10:17 am	0	2698	Last post by N.V.V.S.S. RAMAN Mon Aug 01, 2005 10:17 am
Polymerization of THF in THF/water mobile phase? by khimik » Sat Jul 30, 2005 5:46 am	2	3576	Last post by HW Mueller Mon Aug 01, 2005 7:09 am
Fluroscence Detector by rashmi » Fri Jul 29, 2005 5:03 am	1	2884	Last post by tom jupille Fri Jul 29, 2005 10:50 pm
LC at high temperature by stanlee » Fri Jul 22, 2005 7:44 am	9	6314	Last post by Uwe Neue Fri Jul 29, 2005 1:23 am
Discoloration by Apple_insci » Thu Jul 21, 2005 12:00 am	4	3430	Last post by tom jupille Thu Jul 28, 2005 5:15 pm
Gramicidin by Andrea Hilton » Wed Jul 27, 2005 1:33 pm	2	3186	Last post by Andrea Hilton Thu Jul 28, 2005 2:31 pm
VFA Retention Time Problems by Frosty » Mon Jul 04, 2005 2:48 pm	4	3398	Last post by Frosty Thu Jul 28, 2005 8:49 am
HPLC Column Tracking system and dedication to methods by Tim » Wed Jul 27, 2005 9:03 am	2	3438	Last post by Alex Buske Thu Jul 28, 2005 7:04 am
HPLC Problems by Genepro » Wed Jul 27, 2005 5:53 pm	3	3185	Last post by Mark Tracy Wed Jul 27, 2005 9:41 pm
AAA of Alum containing Vaccines by blewispunk » Tue Jul 26, 2005 6:45 pm	2	2737	Last post by blewispunk Wed Jul 27, 2005 7:15 pm
Automated sample Preparation by dwalker » Sat Jul 23, 2005 8:59 pm	4	3087	Last post by dwalker Wed Jul 27, 2005 7:08 pm
handeling small amounts of solvent by aldij » Wed Jul 27, 2005 7:59 am	1	2568	Last post by tom jupille Wed Jul 27, 2005 5:33 pm
Searching information about pharmacopeias by Tequila » Tue Jul 26, 2005 1:56 pm	1	2622	Last post by unmgvar Tue Jul 26, 2005 3:51 pm
Important fronting in an analysis by Tequila » Sat Jul 16, 2005 11:59 pm	9	4251	Last post by Tequila Tue Jul 26, 2005 1:37 pm
PMCol Separation Method by KarenJ » Fri Jul 08, 2005 1:58 pm	1	2860	Last post by leadazide Tue Jul 26, 2005 12:23 pm
shift of RT by tlili » Fri Jul 01, 2005 9:20 am	6	5368	Last post by tlili Tue Jul 26, 2005 9:48 am
Ion exchange and Particle Size by Cliff Mitchell » Wed Jul 20, 2005 8:49 pm	1	2883	Last post by Chris Pohl Tue Jul 26, 2005 12:58 am
Source for water cleanup cartridges by John Dolan » Tue Jun 28, 2005 5:02 pm	18	7160	Last post by John G Mon Jul 25, 2005 5:23 pm
Experiences with several HPLC systems by LCFlo » Mon Jul 25, 2005 8:32 am	1	3269	Last post by DR Mon Jul 25, 2005 2:25 pm
Chiral separation of N,N-Dimethyl-1-phenethylamine by lee » Tue Jul 19, 2005 12:45 pm	4	3308	Last post by lee Fri Jul 22, 2005 11:39 am
Ivermectin analysis by m.bateman » Thu Jul 07, 2005 3:04 pm	3	3193	Last post by dr_Pyrex Fri Jul 22, 2005 10:25 am
Retention of Ions on a C18 surface by Victor » Mon Jul 11, 2005 11:16 am	7	4433	Last post by HW Mueller Fri Jul 22, 2005 7:34 am
Sample prep for NP by avitan » Thu Jul 21, 2005 1:10 pm	6	4470	Last post by avitan Thu Jul 21, 2005 8:15 pm
Methanesulfonic Acid in Mobile Phase by syx » Tue Jul 19, 2005 12:13 am	8	8949	Last post by Mark Tracy Thu Jul 21, 2005 6:37 pm
Gradient Mixing Test by mdyo » Thu Jul 14, 2005 9:34 pm	10	5884	Last post by tom jupille Wed Jul 20, 2005 8:26 pm
Temperature vs retention by Mattias » Wed Jul 06, 2005 2:48 pm	9	4647	Last post by unmgvar Wed Jul 20, 2005 2:47 pm
gradient broad hump- think it is water by cbeeb » Tue Jul 19, 2005 2:46 pm	3	3477	Last post by KarenJ Wed Jul 20, 2005 1:43 pm
Lost Prime by Apple_insci » Tue Jul 19, 2005 3:56 am	3	13220	Last post by michaelcarolus Wed Jul 20, 2005 5:46 am
amino acids analysis with Angilent Zorbax Eclipse-AAA column by liangli » Fri Jul 01, 2005 4:17 pm	6	5119	Last post by Uwe Neue Wed Jul 20, 2005 1:55 am

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