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	84127	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Time Window for Stability Samples by Sunjay » Tue Oct 30, 2007 11:03 am	13	12664	Last post by LC_labrat Wed Oct 31, 2007 5:38 pm
base line is going negative by zimanli » Mon Oct 29, 2007 5:28 pm	14	5704	Last post by HW Mueller Wed Oct 31, 2007 5:17 pm
Mystery peak..need attention:( by rohitdrl » Tue Oct 30, 2007 10:23 pm	3	2222	Last post by DR Wed Oct 31, 2007 2:49 pm
Goodbye by Mark Tracy » Mon Oct 22, 2007 11:54 pm	19	5046	Last post by ym3142 Wed Oct 31, 2007 2:22 am
2 ml/min for a 3um particle size column? by zimanli » Tue Oct 30, 2007 2:11 am	4	2019	Last post by Uwe Neue Wed Oct 31, 2007 1:39 am
Re: Inert GPC StationaryPhases by IC_Gal » Tue Oct 30, 2007 1:58 pm	2	1586	Last post by Uwe Neue Wed Oct 31, 2007 1:21 am
Poor semi-prep peptide recovery by chichibabin » Thu Oct 25, 2007 4:12 pm	11	3637	Last post by Uwe Neue Wed Oct 31, 2007 1:06 am
abnormal baseline on DAD or Mutltiwavelength detector by duantech » Thu Oct 11, 2007 4:36 am	17	7053	Last post by tom jupille Tue Oct 30, 2007 4:54 pm
Sulfamic acid by Consumer Products Guy » Thu Oct 25, 2007 3:48 pm	5	2880	Last post by IC_Gal Tue Oct 30, 2007 1:43 pm
Diagnosis for system block procedure???? by zimanli » Wed Oct 24, 2007 4:02 pm	4	1963	Last post by zimanli Tue Oct 30, 2007 2:42 am
Diagnosis for system block procedure??? by zimanli » Wed Oct 24, 2007 2:39 pm	3	1994	Last post by zimanli Tue Oct 30, 2007 2:27 am
pH selection by nitin » Fri Oct 26, 2007 10:07 pm	4	2158	Last post by Uwe Neue Mon Oct 29, 2007 10:21 pm
Noise by nellermann » Tue Oct 02, 2007 8:55 pm	6	2718	Last post by nellermann Mon Oct 29, 2007 9:53 pm
carbonate ion + anion exchange chromatography by rick1112 » Mon Oct 29, 2007 7:04 am	1	1683	Last post by tom jupille Mon Oct 29, 2007 4:59 pm
Method validation - System suitability by bioram » Mon Oct 29, 2007 7:44 am	1	1800	Last post by wanda50 Mon Oct 29, 2007 12:30 pm
Random RI Peaks by Noser222 » Sat Oct 20, 2007 10:46 pm	9	3662	Last post by Bruce Hamilton Sat Oct 27, 2007 9:55 pm
BLANK INJECTIONS by achu729 » Fri Oct 26, 2007 12:37 am	4	3064	Last post by achu729 Fri Oct 26, 2007 6:43 pm
urinary oxalic & citric acids by y » Wed Oct 24, 2007 7:43 am	4	2627	Last post by y Thu Oct 25, 2007 6:59 am
Dionex ICS3000 problems in running EPA method 300.1 by yangz00g » Thu Oct 18, 2007 7:29 pm	13	4589	Last post by yangz00g Wed Oct 24, 2007 4:13 pm
Diagnosis for system block procedure??? by zimanli » Wed Oct 24, 2007 2:37 pm	0	1688	Last post by zimanli Wed Oct 24, 2007 2:37 pm
Any experience of the BioTrap column? by Mattias » Wed Oct 10, 2007 9:28 am	7	2877	Last post by Bryan Evans Wed Oct 24, 2007 10:59 am
Crazy Idea by Triple Quad » Tue Oct 16, 2007 7:51 pm	16	6708	Last post by Jackus Tue Oct 23, 2007 1:15 pm
Peroxide Degradation: how to quench the reaction by adam » Wed Oct 10, 2007 12:10 am	10	23146	Last post by kamlesh Patel Tue Oct 23, 2007 7:21 am
Elementary Ion Chromatography by stevel » Sat Oct 20, 2007 4:55 am	3	3500	Last post by Markus Laeubli, Metrohm Tue Oct 23, 2007 5:00 am
Variation in pressure during injection by Fabiano » Tue Oct 23, 2007 12:44 am	0	1884	Last post by Fabiano Tue Oct 23, 2007 12:44 am
PRP X-100 for methylphosphonic acid by yangz00g » Thu Oct 18, 2007 7:46 pm	9	3382	Last post by danko Mon Oct 22, 2007 9:59 pm
ion exchange chromatography guidance by rick1112 » Mon Oct 22, 2007 7:00 am	1	2310	Last post by AdrianF Mon Oct 22, 2007 3:14 pm
Memantine hcl determination by HPLC by xozkn » Sat Oct 20, 2007 12:35 pm	6	5330	Last post by HW Mueller Mon Oct 22, 2007 6:53 am
Bias in Recovery for Drug Substance by GoldLeader » Mon Oct 08, 2007 8:37 pm	15	5293	Last post by GoldLeader Fri Oct 19, 2007 8:31 pm
Waters 717plus Autosampler Error. HELP!!! by Ghost Writer » Fri Oct 19, 2007 5:43 pm	0	2089	Last post by Ghost Writer Fri Oct 19, 2007 5:43 pm
Perkin-Elmer HPLC Problems by moonman00 » Thu Oct 18, 2007 6:17 pm	4	5171	Last post by moonman00 Fri Oct 19, 2007 5:26 pm
Peek HPLC System by Eric Moore » Thu Oct 18, 2007 9:34 pm	2	2189	Last post by Mark Tracy Fri Oct 19, 2007 1:12 am
Lab for MS ID of unkown by bgiles » Thu Oct 18, 2007 3:49 pm	1	1958	Last post by JMB Thu Oct 18, 2007 11:15 pm
Theoretical Plate Method Validation by daltore » Wed Oct 17, 2007 8:21 pm	2	3570	Last post by danko Thu Oct 18, 2007 9:59 pm
Chromatography Optimization software by AdrianF » Mon Oct 15, 2007 8:46 am	4	2899	Last post by Mark Tracy Thu Oct 18, 2007 4:27 pm
Dionex LC troubleshooting by Imran » Thu Oct 18, 2007 2:53 pm	1	2577	Last post by Mark Tracy Thu Oct 18, 2007 4:20 pm
Peak fronting - chiral method by mojo » Thu Oct 18, 2007 12:40 pm	1	1971	Last post by danko Thu Oct 18, 2007 1:37 pm
Cross referencing to previos topic by AdrianF » Tue Oct 16, 2007 9:05 am	2	2120	Last post by AdrianF Thu Oct 18, 2007 11:25 am
citrate/phosphate buffer- pH 3.0 (McIlvaine's Buffer) by Richard987x » Wed Oct 17, 2007 9:13 pm	3	9477	Last post by Uwe Neue Thu Oct 18, 2007 1:56 am
Inject 2 M urea on a Dionex HPAEC-PAD system ? by goran123 » Fri Oct 12, 2007 10:19 am	2	2903	Last post by Mark Tracy Wed Oct 17, 2007 5:45 pm
Separating Phenylboronic acid from its trimer anhydride by lee » Wed Oct 17, 2007 2:37 pm	1	2512	Last post by Bryan Evans Wed Oct 17, 2007 3:40 pm
Request Help finding a simple 2-4D method by josebenjamin » Mon Oct 15, 2007 4:31 pm	2	2128	Last post by josebenjamin Wed Oct 17, 2007 1:24 pm
2% Formic Acid destroying my column (dead space) by Anna01 » Sat Oct 13, 2007 7:29 pm	9	4044	Last post by Anna01 Wed Oct 17, 2007 10:47 am
Peak tailing factor computation. by irwine » Wed Oct 10, 2007 1:37 pm	12	8872	Last post by irwine Wed Oct 17, 2007 5:17 am
question about multiposition actuator by piracetam » Tue Oct 16, 2007 10:09 pm	0	2117	Last post by piracetam Tue Oct 16, 2007 10:09 pm
Waters 600E pressure fluctuations by dkreller » Sun Oct 14, 2007 9:29 pm	1	2053	Last post by juddc Tue Oct 16, 2007 6:20 pm
Problem with HPAEC-PAD baseline??? by rick1112 » Mon Sep 24, 2007 11:15 am	2	3090	Last post by Chris Pohl Tue Oct 16, 2007 3:37 pm
Ion exclusion column problem by joelyue » Fri Oct 05, 2007 4:19 am	5	2606	Last post by Chris Pohl Tue Oct 16, 2007 3:18 pm
PDA detector by vellaikumar » Mon Oct 15, 2007 10:23 am	2	2071	Last post by Jumpshooter Tue Oct 16, 2007 1:45 pm
Method Equivalency by wanda50 » Mon Oct 15, 2007 6:57 pm	7	2878	Last post by wanda50 Tue Oct 16, 2007 1:26 pm

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