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	83654	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Importance of Y-Intercept in Method Validation by grreddy » Tue Nov 07, 2006 7:51 am	4	4770	Last post by Mark Tracy Tue Nov 07, 2006 6:37 pm
assay of vit E (tocoferol form) using the succinate standard by pharmachem » Mon Oct 30, 2006 6:38 am	8	3242	Last post by HW Mueller Mon Nov 06, 2006 9:00 am
Degassing water for GPC analysis by QZ » Mon Oct 16, 2006 5:53 pm	8	3855	Last post by HW Mueller Mon Nov 06, 2006 8:44 am
Oasis HLB column by nayra » Mon Sep 04, 2006 6:17 pm	8	4882	Last post by barry Mon Nov 06, 2006 5:04 am
LOQ>Sample>LOD help by tayzyboy » Tue Oct 31, 2006 11:24 am	7	3342	Last post by barry Mon Nov 06, 2006 4:51 am
Amino column help by Noser222 » Wed Nov 01, 2006 4:43 pm	7	3849	Last post by Uwe Neue Fri Nov 03, 2006 10:38 pm
ionpairchromatography by meudra » Fri Nov 03, 2006 3:15 pm	1	2026	Last post by Mark Tracy Fri Nov 03, 2006 5:01 pm
chemometrics by SRINIVASAN » Sat Oct 21, 2006 1:19 pm	12	3813	Last post by bartjoosen Fri Nov 03, 2006 1:42 pm
EPA 3640 GPC Cleanup Column by ravenwork » Thu Nov 02, 2006 4:14 pm	0	2122	Last post by ravenwork Thu Nov 02, 2006 4:14 pm
Loooong retention time again----please help by excalibur30 » Wed Nov 01, 2006 4:06 pm	4	2488	Last post by excalibur30 Thu Nov 02, 2006 3:33 pm
Quaternary ammonium cpd on Primesep 100 by JA » Wed Nov 01, 2006 3:06 pm	5	3145	Last post by JA Thu Nov 02, 2006 1:49 pm
Geometry and Scaling Down a TMAE column by Chach » Mon Oct 30, 2006 8:02 pm	6	3287	Last post by Uwe Neue Wed Nov 01, 2006 10:53 pm
Solvent filter about clarithromycin by bloodstone001 » Wed Nov 01, 2006 3:05 am	1	2951	Last post by rhaefe Wed Nov 01, 2006 4:50 pm
Injector valve by delle.82 » Tue Oct 31, 2006 5:16 pm	4	2861	Last post by promochrom Tue Oct 31, 2006 9:30 pm
finding Void time(To) by amanda » Sun Oct 08, 2006 9:59 pm	21	7052	Last post by tom jupille Tue Oct 31, 2006 5:55 pm
capacity measurements in CEC by jtb2006 » Tue Oct 31, 2006 1:58 am	1	1984	Last post by Mark Tracy Tue Oct 31, 2006 5:12 pm
Opinion on chiral column shopping list by Trishia » Mon Oct 23, 2006 1:26 pm	5	3316	Last post by zoom Tue Oct 31, 2006 2:32 pm
Chiral Separation Training Recommendations? by lehminh » Wed Oct 25, 2006 9:30 pm	2	2288	Last post by zoom Tue Oct 31, 2006 2:16 pm
Peak Fronting by BradPrater » Fri Oct 27, 2006 7:40 pm	3	2661	Last post by BradPrater Tue Oct 31, 2006 12:47 pm
Isometheptene Mucate and HCl by XiZ » Tue Oct 31, 2006 6:35 am	0	2425	Last post by XiZ Tue Oct 31, 2006 6:35 am
decreasing retention time with increasing times of injection by slimshady » Sun Oct 22, 2006 1:36 pm	16	5900	Last post by ym3142 Tue Oct 31, 2006 3:39 am
Qulity/Price Relation in HPLC Systems by Blagoje » Mon Oct 30, 2006 7:22 pm	2	2472	Last post by juddc Mon Oct 30, 2006 10:46 pm
Alkylated PAH analysis by Sean » Fri Oct 27, 2006 5:02 pm	5	2862	Last post by Uwe Neue Mon Oct 30, 2006 9:37 pm
CPR for Waters Xterra C8 column? by ntruong » Sun Oct 29, 2006 12:29 pm	2	2619	Last post by Uwe Neue Mon Oct 30, 2006 9:34 pm
About Quality of GBC's Systems by Blagoje » Mon Oct 30, 2006 7:19 pm	0	2129	Last post by Blagoje Mon Oct 30, 2006 7:19 pm
Fronting peaks with PFPP column by mav » Fri Oct 13, 2006 4:59 pm	18	6177	Last post by ntruong Sun Oct 29, 2006 12:27 pm
Don't see acetoacetate ester on ELSD - Why? by foxp » Fri Oct 27, 2006 3:07 pm	4	3177	Last post by tom jupille Sat Oct 28, 2006 10:56 am
Minimal number of runs for validation by Fabiano » Mon Oct 23, 2006 2:51 am	16	6314	Last post by ntruong Sat Oct 28, 2006 4:11 am
CSPs and analytes they can separate by Trishia » Thu Oct 26, 2006 6:55 pm	2	2410	Last post by Trishia Fri Oct 27, 2006 9:21 pm
anything can decreae the retention time? by slimshady » Wed Oct 25, 2006 2:18 pm	3	2649	Last post by ntruong Fri Oct 27, 2006 3:21 am
Integration parameters- locked after validation? by scpercy » Mon Oct 23, 2006 2:44 pm	14	5600	Last post by tom jupille Fri Oct 27, 2006 1:57 am
5-point Calibration curve by pcummins » Wed Oct 04, 2006 3:31 pm	34	21149	Last post by LewisC Thu Oct 26, 2006 3:43 pm
Vaian 410 autosampler software problem.. Please help by excalibur30 » Wed Oct 25, 2006 3:30 pm	2	3089	Last post by excalibur30 Thu Oct 26, 2006 3:25 pm
DX 120 Pressure transducer by ozric » Thu Oct 26, 2006 1:34 pm	0	2113	Last post by ozric Thu Oct 26, 2006 1:34 pm
Benzodiazepines HPLC conditions by Zydrunas Stanius » Wed Oct 25, 2006 7:58 pm	2	2656	Last post by Uwe Neue Thu Oct 26, 2006 2:26 am
Intersil ODS-3 Columns by Yorkie31 » Tue Oct 24, 2006 2:05 pm	2	3423	Last post by DR Wed Oct 25, 2006 4:55 pm
HPLC reagents/modifiers by Roxanne42 » Tue Oct 24, 2006 10:29 pm	2	2242	Last post by Mark Tracy Wed Oct 25, 2006 4:53 pm
About the relation of signal - noise by Tequila » Wed Oct 25, 2006 12:04 pm	1	2054	Last post by Mark Tracy Wed Oct 25, 2006 4:45 pm
Noise or disturbance in the base line by gregorjose » Fri Oct 13, 2006 9:33 am	5	3053	Last post by HW Mueller Wed Oct 25, 2006 8:42 am
THF Stability by Consumer Products Guy » Tue Oct 24, 2006 3:25 pm	3	6299	Last post by ym3142 Wed Oct 25, 2006 4:05 am
LACIDIPINE by rc_12321 » Thu Sep 28, 2006 7:11 am	2	3094	Last post by rc_12321 Tue Oct 24, 2006 2:28 pm
Problems with THF? (contd.) by kkovats » Wed Oct 11, 2006 12:09 pm	24	11713	Last post by PJ8 Tue Oct 24, 2006 9:43 am
LC-MS Instructor needed by josebenjamin » Mon Oct 23, 2006 7:44 pm	0	2279	Last post by josebenjamin Mon Oct 23, 2006 7:44 pm
API and Related Impurities by Nalizer » Sun Oct 22, 2006 11:34 pm	2	2533	Last post by DR Mon Oct 23, 2006 5:06 pm
Integration parameters- locked after validation? by scpercy » Mon Oct 23, 2006 2:44 pm	0	2159	Last post by scpercy Mon Oct 23, 2006 2:44 pm
Y-intercept bias by Chem1 » Thu Oct 19, 2006 9:17 pm	4	14132	Last post by SRINIVASAN Mon Oct 23, 2006 1:40 pm
Chemometrics by dilli » Sun Oct 22, 2006 4:52 pm	2	2691	Last post by bartjoosen Mon Oct 23, 2006 8:35 am
Method Development: anilines and positional isomers by PJ8 » Wed Oct 04, 2006 1:05 pm	10	3658	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	4555	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	2986	Last post by HW Mueller Mon Oct 23, 2006 7:48 am

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