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	83613	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
HELP : Have to locate carbohydrates DP8 - DP15 ... where?? by h.piatkowski@comalc.com » Tue Apr 04, 2006 4:00 pm	1	2312	Last post by Rafael Chust Tue Apr 04, 2006 10:31 pm
Why is no UV peak detected by LCMS? by sxg » Fri Mar 31, 2006 6:04 pm	7	3784	Last post by sxg Tue Apr 04, 2006 9:12 pm
Pump Pressure by yxw » Tue Apr 04, 2006 2:55 am	4	2702	Last post by Mark Tracy Tue Apr 04, 2006 4:57 pm
HPLC data analysis compare to UV analysis by cmfafaf » Mon Apr 03, 2006 11:41 pm	3	2722	Last post by cmfafaf Tue Apr 04, 2006 4:45 pm
contamination of HPLC system by KC » Mon Apr 03, 2006 10:19 pm	5	3436	Last post by DR Tue Apr 04, 2006 1:11 pm
surfactants in the mobile phase by shrikantgadekar » Mon Apr 03, 2006 3:35 pm	1	2220	Last post by tom jupille Tue Apr 04, 2006 3:19 am
cleaning procedure after precolumn OPA derivatization by ghie malig » Mon Apr 03, 2006 7:44 am	2	2594	Last post by ghie malig Tue Apr 04, 2006 1:21 am
About determination of glucosamine according to USP by Diego Delmonte » Tue Mar 28, 2006 11:42 am	2	3392	Last post by michaldousa Mon Apr 03, 2006 7:03 pm
Damping of current by LCFlo » Mon Apr 03, 2006 8:19 am	2	2575	Last post by tom jupille Mon Apr 03, 2006 12:59 pm
column chromatography by wky » Sun Mar 19, 2006 7:42 am	14	7484	Last post by tom jupille Mon Apr 03, 2006 12:16 pm
Gradient by yxw » Mon Mar 20, 2006 10:18 pm	10	4175	Last post by Rafael Chust Mon Apr 03, 2006 9:44 am
Strange problem by bloodstone001 » Tue Mar 21, 2006 3:17 am	15	5912	Last post by JM Mon Apr 03, 2006 9:19 am
Test Method Validation - Accuracy by Consumer Products Guy » Mon Mar 20, 2006 11:38 pm	4	3418	Last post by KC Sun Apr 02, 2006 3:24 pm
LC method to LC-MS method by sjee6 » Thu Mar 30, 2006 8:42 pm	7	4489	Last post by SIELC_Tech Sat Apr 01, 2006 8:05 pm
UPLC by zo » Fri Mar 03, 2006 3:33 pm	30	14158	Last post by Uwe Neue Sat Apr 01, 2006 6:51 pm
BLANK PEAKS IN CALCULATIONS by rc_12321 » Thu Mar 30, 2006 5:43 am	2	2956	Last post by syx Sat Apr 01, 2006 11:13 am
problem with nereistoxin thiosultap by aflores » Thu Mar 30, 2006 5:45 pm	1	2116	Last post by tom jupille Fri Mar 31, 2006 7:40 pm
Guanidine without EDTA by kurian » Wed Mar 29, 2006 2:57 pm	3	2711	Last post by SIELC_Tech Fri Mar 31, 2006 8:59 am
where to get support for KromaSystem (Geminyx) software by Langston » Thu Mar 30, 2006 2:13 am	4	2832	Last post by Rafael Chust Fri Mar 31, 2006 8:20 am
Secondary vendor for Waters Xterra column? by lnixon » Wed Mar 29, 2006 11:24 pm	5	2818	Last post by SIELC_Tech Fri Mar 31, 2006 1:40 am
HPLC + DC ??? by Basil » Wed Mar 29, 2006 11:18 am	6	3375	Last post by Chris Pohl Thu Mar 30, 2006 11:54 pm
Ion Pairing chromatography by bunmiph » Wed Mar 29, 2006 10:10 pm	2	2267	Last post by Rafael Chust Thu Mar 30, 2006 8:13 pm
L-Carnitin determination by JAROCZAJKA » Tue Mar 14, 2006 10:59 am	2	2275	Last post by Bryan Evans Thu Mar 30, 2006 5:13 pm
RI detectors and differential refractometric detectors by michael.k raj » Mon Mar 27, 2006 5:40 am	3	2685	Last post by michael.k raj Thu Mar 30, 2006 8:10 am
question on compound behaviour on thin layer chromatography by wky » Sun Mar 19, 2006 7:51 am	16	9750	Last post by wky Thu Mar 30, 2006 6:20 am
Inverted peaks by karenh » Wed Mar 29, 2006 10:54 pm	1	2761	Last post by lcguy1 Thu Mar 30, 2006 12:19 am
Protein containing Polysorbate 80 and RP HPLC by kar22 » Wed Mar 29, 2006 2:04 pm	2	2812	Last post by kar22 Wed Mar 29, 2006 6:01 pm
Validation courses by kkovats » Wed Mar 29, 2006 9:04 am	3	2395	Last post by philippem Wed Mar 29, 2006 2:38 pm
ELSD by basskar1 » Tue Mar 28, 2006 5:12 pm	5	2989	Last post by Peter Apps Wed Mar 29, 2006 1:16 pm
Chaotropic salts, how do they work? by gonzjr » Mon Mar 27, 2006 4:23 pm	6	4247	Last post by HW Mueller Wed Mar 29, 2006 9:31 am
how to set up quantitation database for internal calibration by zimanli » Tue Mar 28, 2006 11:01 pm	0	2219	Last post by zimanli Tue Mar 28, 2006 11:01 pm
Problems with THF by ahalya » Wed Mar 22, 2006 2:13 pm	11	5239	Last post by ntruong Mon Mar 27, 2006 11:55 pm
Waters 2695 Check Valve Problems by Jason Hendricks » Thu Mar 23, 2006 5:48 pm	7	6219	Last post by michaldousa Mon Mar 27, 2006 7:05 pm
21 CFR vis-a-vis HPLC by sksrinivas » Fri Mar 24, 2006 2:25 pm	7	4946	Last post by Consumer Products Guy Mon Mar 27, 2006 6:14 pm
Equivalent Column for Primesep100 by prasadpvs » Wed Mar 22, 2006 12:45 pm	13	10144	Last post by Mark Tracy Mon Mar 27, 2006 5:12 pm
Correction Factor for Thermometer by Sunjay » Mon Mar 27, 2006 10:17 am	1	2789	Last post by DR Mon Mar 27, 2006 2:42 pm
Detecting Primary Amines by Roy Kelvin » Fri Mar 17, 2006 5:00 pm	8	5504	Last post by Rob Burgess Mon Mar 27, 2006 11:18 am
rosiglitazone by zompa » Fri Mar 24, 2006 5:15 pm	9	3473	Last post by zompa Mon Mar 27, 2006 10:56 am
Mobile phase composition adjustment by Liza » Sat Mar 25, 2006 2:08 am	5	3417	Last post by tom jupille Mon Mar 27, 2006 4:34 am
ghost peak by ym3142 » Sat Mar 18, 2006 9:52 am	7	3313	Last post by Kostas Petritis Fri Mar 24, 2006 6:58 pm
switch methscopolamine and phenylephrine by ym3142 » Fri Mar 24, 2006 2:35 pm	0	1975	Last post by ym3142 Fri Mar 24, 2006 2:35 pm
6-aminohexanoic acid impurity method by EH » Thu Mar 23, 2006 6:47 pm	1	2542	Last post by SIELC_Tech Thu Mar 23, 2006 11:30 pm
retention time shift with Ion pairing LC by dlliu » Mon Mar 20, 2006 8:37 pm	21	9120	Last post by Kostas Petritis Thu Mar 23, 2006 10:17 pm
3,2 mm column diameter by amirchem » Thu Mar 23, 2006 9:13 am	2	2653	Last post by folive Thu Mar 23, 2006 5:46 pm
Help in HPLC Waters 2690 by Diego Delmonte » Mon Mar 20, 2006 4:38 pm	3	3438	Last post by Jason Hendricks Thu Mar 23, 2006 4:21 pm
Guard Column by Chellie » Wed Mar 22, 2006 2:49 pm	6	3611	Last post by HW Mueller Thu Mar 23, 2006 11:49 am
Ghost peak during the determination of aldehydes using dnph by Houtuh » Thu Mar 09, 2006 10:36 am	12	4566	Last post by Houtuh Thu Mar 23, 2006 10:02 am
RI question by pinkpanther » Mon Mar 20, 2006 5:52 pm	6	3302	Last post by sksrinivas Thu Mar 23, 2006 4:58 am
Cefdinir Plasma extraction method by sandip.gurav » Tue Mar 21, 2006 4:54 am	3	2457	Last post by Uwe Neue Thu Mar 23, 2006 12:33 am
Mobile Phase pH choice by Apple_insci » Fri Mar 10, 2006 2:43 am	12	4472	Last post by Apple_insci Thu Mar 23, 2006 12:09 am

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