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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11919 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	88673	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Method Development: anilines and positional isomers by PJ8 » Wed Oct 04, 2006 1:05 pm	10	3712	Last post by PJ8 Mon Oct 23, 2006 8:31 am
restoring my column effeciency by fatma elzahraa » Sat Oct 14, 2006 11:12 am	12	4651	Last post by HW Mueller Mon Oct 23, 2006 7:52 am
Chromolith backpressure by frank scherr » Thu Oct 19, 2006 4:32 am	7	3033	Last post by HW Mueller Mon Oct 23, 2006 7:48 am
Rezex RCM-Monosaccharide by sekica » Thu Oct 19, 2006 5:07 am	6	3628	Last post by sekica Mon Oct 23, 2006 12:07 am
Mobile Phase Stability by gbalock » Fri Oct 20, 2006 1:16 pm	5	6314	Last post by Bruce Hamilton Sun Oct 22, 2006 9:50 pm
assay of a drug product,a syrup, with HPLC by meudra » Fri Oct 20, 2006 10:39 pm	5	3500	Last post by Bruce Hamilton Sun Oct 22, 2006 7:47 am
Switching valve by anupama » Fri Oct 06, 2006 12:52 pm	7	3984	Last post by haibinwan Sat Oct 21, 2006 8:49 pm
Aerosol can sampling by Consumer Products Guy » Wed Oct 18, 2006 4:01 pm	11	4391	Last post by GOM Thu Oct 19, 2006 6:23 pm
Limonin analysis by oscarBAL » Wed Oct 18, 2006 11:15 pm	3	2283	Last post by Uwe Neue Thu Oct 19, 2006 5:12 pm
Polar Compouds Separation_Column Recommendation by Molly » Thu Sep 14, 2006 8:44 pm	25	7735	Last post by Einar Ponten Wed Oct 18, 2006 9:41 pm
betaine by vicentexxx » Tue Oct 10, 2006 10:22 am	8	4320	Last post by Einar Ponten Wed Oct 18, 2006 9:25 pm
How to separate ADP and ATP using Hypercarb by plusik » Thu Oct 12, 2006 2:02 am	3	3372	Last post by Einar Ponten Wed Oct 18, 2006 9:14 pm
Method validation - a silly question! by sksrinivas » Tue Oct 17, 2006 8:53 am	12	3802	Last post by tom jupille Wed Oct 18, 2006 2:45 pm
validation: accuracy by vicentexxx » Tue Oct 17, 2006 10:08 am	4	2973	Last post by vicentexxx Wed Oct 18, 2006 1:32 pm
5 or 6 injections for system suitability by ym3142 » Fri Sep 22, 2006 4:42 pm	28	17521	Last post by ym3142 Wed Oct 18, 2006 3:37 am
taurine in energy drinks by marinad » Wed Oct 11, 2006 1:25 pm	6	3766	Last post by ym3142 Wed Oct 18, 2006 2:41 am
Pyridine-based Anion Exchangers by Phraldo » Wed Oct 11, 2006 9:50 pm	3	2577	Last post by SIELC_Tech Tue Oct 17, 2006 9:08 pm
USP Methods/cGMP Regulations by Must remain anonymous » Sat Oct 14, 2006 4:28 am	8	3201	Last post by AdrianF Tue Oct 17, 2006 3:31 pm
Fluorescamine precolumn derivatization using Agilent 1100 by jtreacy » Tue Oct 17, 2006 12:36 pm	2	2065	Last post by jtreacy Tue Oct 17, 2006 1:47 pm
Solvent waste by tayzyboy » Thu Oct 12, 2006 3:27 pm	1	2396	Last post by Alfred88 Tue Oct 17, 2006 12:19 am
salycilic acid by vicentexxx » Mon Oct 16, 2006 9:46 am	2	2111	Last post by Consumer Products Guy Mon Oct 16, 2006 7:36 pm
Help! need firmware for LC Packings, Dionex by dlliu » Fri Oct 13, 2006 5:18 pm	2	2102	Last post by Mark Tracy Mon Oct 16, 2006 5:23 pm
Chromolith by sridharkam » Tue Oct 10, 2006 10:26 am	3	2665	Last post by malaka50 Sun Oct 15, 2006 6:04 am
HPLC problems by dha » Wed Oct 11, 2006 8:15 pm	5	2945	Last post by haibinwan Sat Oct 14, 2006 10:24 pm
two Nicarbazin peaks by sfe-co2 » Thu Oct 12, 2006 9:15 am	5	2546	Last post by sfe-co2 Fri Oct 13, 2006 2:18 pm
Fluorescamine by jtreacy » Fri Oct 13, 2006 2:06 pm	0	1801	Last post by jtreacy Fri Oct 13, 2006 2:06 pm
IC columns and mobile phase compatibility by key4 » Tue Oct 10, 2006 12:25 pm	2	2259	Last post by key4 Fri Oct 13, 2006 12:52 pm
serious ridicolous problem by vicentexxx » Thu Oct 12, 2006 10:11 am	7	3044	Last post by vicentexxx Fri Oct 13, 2006 11:46 am
should I go for a small-partical-size column? by iceman » Wed Oct 04, 2006 5:05 pm	12	3560	Last post by RSlingsby Thu Oct 12, 2006 8:23 pm
Shift in retension time by gregorjose » Tue Oct 03, 2006 6:23 am	8	3266	Last post by tom jupille Thu Oct 12, 2006 5:26 pm
Question on RF-TLC by ruffian » Wed Oct 11, 2006 9:50 pm	3	2932	Last post by tom jupille Thu Oct 12, 2006 5:25 pm
full validation versus verification of compendial methods by srdales » Tue Oct 03, 2006 10:55 pm	3	2813	Last post by Sunjay Thu Oct 12, 2006 9:39 am
Peaks eluting before the "dead" volume by Mattias » Wed Oct 11, 2006 9:17 am	7	4256	Last post by Mark Tracy Thu Oct 12, 2006 12:28 am
hypothetically speaking - pH matching pKa by neuger » Wed Oct 11, 2006 3:15 pm	6	4393	Last post by Uwe Neue Thu Oct 12, 2006 12:25 am
plate count by tracy » Tue Oct 10, 2006 3:34 pm	2	2365	Last post by tom jupille Tue Oct 10, 2006 6:32 pm
plate count by tracy » Tue Oct 10, 2006 3:34 pm	1	2157	Last post by tom jupille Tue Oct 10, 2006 6:21 pm
Replace ammonium hydroxide with sodium hydroxide by WK » Tue Oct 10, 2006 12:57 pm	2	2892	Last post by Uwe Neue Tue Oct 10, 2006 5:40 pm
Problem with Aldehyde containing species in LC-MS method by james little » Fri Oct 06, 2006 8:26 pm	4	3071	Last post by SIELC_Tech Tue Oct 10, 2006 12:20 pm
Hypersil SAX column chemistry by Beaker » Mon Oct 09, 2006 2:07 pm	2	2702	Last post by Beaker Tue Oct 10, 2006 11:31 am
Theor. Plates as a System Suit and Method Transfer Criterion by KarenJ » Mon Oct 02, 2006 1:58 pm	6	5888	Last post by HW Mueller Tue Oct 10, 2006 8:31 am
Atlantis T3 Column from Waters by Nalizer » Thu Oct 05, 2006 3:39 pm	11	7178	Last post by SIELC_Tech Mon Oct 09, 2006 9:15 pm
universal detector by woow » Mon Oct 09, 2006 5:38 pm	7	4385	Last post by woow Mon Oct 09, 2006 8:20 pm
USP column packing by woow » Mon Oct 09, 2006 5:58 pm	1	2369	Last post by tom jupille Mon Oct 09, 2006 6:03 pm
USP L31 by Basil » Wed Oct 04, 2006 11:47 am	3	3342	Last post by Basil Mon Oct 09, 2006 11:52 am
Extraction of samples containing polysorbate for HPLC assay by lu_pharm » Thu Oct 05, 2006 8:01 pm	15	9727	Last post by JM Mon Oct 09, 2006 11:16 am
BSA by HPLC by MK » Thu Oct 05, 2006 7:10 pm	5	4462	Last post by HW Mueller Mon Oct 09, 2006 7:12 am
Leachables and Extractables in pharmaceuticals by pillin » Wed Oct 04, 2006 9:25 am	2	2880	Last post by jamesque Sun Oct 08, 2006 1:25 am
Column diameter Vs flow rate by amanda » Fri Oct 06, 2006 9:17 pm	4	3198	Last post by amanda Sat Oct 07, 2006 6:31 pm
HELP! Student research project on chromatography by DerekNJND » Fri Sep 22, 2006 3:11 pm	7	3755	Last post by Rande Sat Oct 07, 2006 5:36 am
how to deal system peak by ym3142 » Fri Sep 15, 2006 7:30 pm	18	5474	Last post by anupama Fri Oct 06, 2006 2:31 pm

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