Liquid Chromatography

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Ion Chromatography Discussions about IC and related topics Topics: 399	399	1500	Last post Re: Inquiry: Replacement hous… by cpell Thu Nov 13, 2025 5:02 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: 119	119	467	Last post Re: choice of GPC software by pigsy1983 Tue Jul 08, 2025 4:23 pm

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11911 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	77229	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Chiral separation of Dexibuprofen from Ibuprofen. by LCGUY » Tue Jul 31, 2007 9:28 am	3	2849	Last post by Larry Miller Tue Jul 31, 2007 8:05 pm
"Ghost" peaks during gradient by Jackus » Mon Jul 30, 2007 7:26 am	6	2930	Last post by Kostas Petritis Tue Jul 31, 2007 5:31 pm
IC: CarboPac PA1 - Mobile Phase Compatibility by Rob Burgess » Mon Jul 30, 2007 3:24 pm	1	2013	Last post by Mark Tracy Tue Jul 31, 2007 4:02 pm
HPLC General Operationg Questions by Jumpshooter » Fri Jul 27, 2007 7:18 pm	12	4807	Last post by Jumpshooter Tue Jul 31, 2007 2:27 pm
Evaporation of TFA in an aqueous mobile phase (semi-prep) by Faith » Tue Jun 26, 2007 5:38 am	27	17045	Last post by Bryan Evans Tue Jul 31, 2007 2:03 am
Reproducibility by Trishia » Mon Jul 30, 2007 8:29 pm	1	2454	Last post by Mark Tracy Mon Jul 30, 2007 10:39 pm
HILIC Column by areinhar » Wed Jul 25, 2007 8:05 am	10	3842	Last post by Uwe Neue Mon Jul 30, 2007 3:53 pm
Max absorbance in UV by AdrianF » Tue Jul 24, 2007 3:15 pm	8	9852	Last post by AdrianF Mon Jul 30, 2007 3:36 pm
Forced Degradation Studies by shanmuga » Mon Jul 30, 2007 1:52 pm	0	1934	Last post by shanmuga Mon Jul 30, 2007 1:52 pm
Shortening chromatographic run time by Oliver » Fri Jul 06, 2007 2:59 pm	11	6630	Last post by DR Mon Jul 30, 2007 12:53 pm
Cleaning Ion Pair Reagents from C18 columns by Omar » Tue Jul 24, 2007 5:19 pm	7	5874	Last post by syx Mon Jul 30, 2007 8:28 am
MICROBIAL GROWTH IN HPLC / COLUMNS by AMIT KUMAR JAIN » Fri Jul 27, 2007 9:47 am	3	4488	Last post by LCGUY Mon Jul 30, 2007 4:16 am
Pore size of analytical column? by dsahoo » Thu Jul 26, 2007 7:59 pm	5	3929	Last post by LCGUY Mon Jul 30, 2007 4:11 am
mobile phase stability by rick1112 » Thu Jul 26, 2007 7:40 am	7	10313	Last post by syx Mon Jul 30, 2007 2:08 am
ephedrine/pseudoephedrine separation and quantification by ntbhat » Fri Jul 27, 2007 8:27 pm	5	7742	Last post by Schmitty Sat Jul 28, 2007 4:42 am
HPIPC/MS by PHOBIUS » Sat Jul 21, 2007 8:46 am	13	3750	Last post by Bryan Evans Fri Jul 27, 2007 6:50 pm
APS - 2 Column by shanmuga » Fri Jul 27, 2007 2:26 pm	1	1924	Last post by tom jupille Fri Jul 27, 2007 6:35 pm
linearity preparation by srdales » Tue Jul 17, 2007 5:54 pm	12	4274	Last post by Bruce Hamilton Fri Jul 27, 2007 6:21 pm
Waters 996 PDA detector by beginner » Fri Jul 27, 2007 12:45 pm	2	2029	Last post by zokitano Fri Jul 27, 2007 1:20 pm
Ion-pair Chromatography: Revalidation issue by zokitano » Wed Jul 25, 2007 10:56 am	3	2019	Last post by JM Fri Jul 27, 2007 8:25 am
Cleaning aluminum oxide by pramote » Fri Jul 27, 2007 7:39 am	0	1846	Last post by pramote Fri Jul 27, 2007 7:39 am
Speaking of Solvents and Mobile Phases by Jumpshooter » Tue Jul 24, 2007 3:49 pm	7	2845	Last post by Bruce Hamilton Thu Jul 26, 2007 8:43 pm
The Sample Extraction Step is Key by Jumpshooter » Tue Jul 24, 2007 7:50 pm	11	3425	Last post by Jumpshooter Thu Jul 26, 2007 6:09 pm
ion-pairing agents ??? by rick1112 » Thu Jul 26, 2007 4:33 am	4	3603	Last post by Kostas Petritis Thu Jul 26, 2007 6:02 pm
protein precipitation by sonal » Thu Jul 26, 2007 12:16 am	3	2132	Last post by HW Mueller Thu Jul 26, 2007 2:45 pm
related substance calculations by upamaniah » Thu Jul 26, 2007 10:33 am	1	2813	Last post by DR Thu Jul 26, 2007 12:48 pm
integration by helen » Tue Jul 24, 2007 8:22 am	5	2671	Last post by tom jupille Wed Jul 25, 2007 8:56 pm
Amoxicillin and Clavulanate Potassium by mondy » Tue Jul 10, 2007 9:07 am	5	2810	Last post by mondy Wed Jul 25, 2007 10:13 am
sugar sugar sugar by srdales » Mon Jul 23, 2007 8:48 pm	6	2708	Last post by srdales Wed Jul 25, 2007 1:03 am
Pressure versus temperature question by Davidsonchemgrad » Tue Jul 24, 2007 1:35 pm	6	2640	Last post by Dan Wed Jul 25, 2007 12:42 am
Method Validation by Pasha » Tue Jul 24, 2007 4:36 pm	4	2319	Last post by tom jupille Tue Jul 24, 2007 11:11 pm
peak - abo by srdales » Mon Jul 23, 2007 9:10 pm	9	2771	Last post by tom jupille Tue Jul 24, 2007 11:04 pm
RP-HPLC at neutral pH by jmoll » Tue Jul 24, 2007 4:34 pm	1	1942	Last post by tom jupille Tue Jul 24, 2007 11:01 pm
several questions from a novice by littlewenwen » Sat Jul 21, 2007 5:52 am	12	3832	Last post by littlewenwen Tue Jul 24, 2007 8:17 pm
Please!! Help on ion chromatography for soil analysis by scamiolo » Tue Jul 24, 2007 12:27 pm	1	2491	Last post by Mark Tracy Tue Jul 24, 2007 6:52 pm
Extraction of preservatives from injectables prior to HPLC by lee7 » Tue Jul 24, 2007 1:18 pm	2	2568	Last post by lee7 Tue Jul 24, 2007 4:08 pm
Theoretical plates & column efficiency by hmlurd » Thu Jul 19, 2007 8:03 am	19	23928	Last post by HW Mueller Tue Jul 24, 2007 2:21 pm
System suitabilty requirements by Richard.westcott » Mon Jul 23, 2007 12:49 pm	3	3085	Last post by Sunjay Tue Jul 24, 2007 9:54 am
Help with Acella by AA » Sat Jul 21, 2007 12:08 pm	3	2172	Last post by leadazide Tue Jul 24, 2007 7:05 am
HPLC is Leaking by Jumpshooter » Mon Jul 23, 2007 5:54 pm	5	3794	Last post by Jackus Tue Jul 24, 2007 6:39 am
Scaling Up by ChemicalBond007 » Mon Jul 23, 2007 10:33 pm	4	2136	Last post by ChemicalBond007 Tue Jul 24, 2007 4:07 am
Why use an isocratic system by Jumpshooter » Fri Jul 20, 2007 8:39 pm	6	2467	Last post by tom jupille Mon Jul 23, 2007 10:54 pm
Problems in Acarbose - Urgent by shanmuga » Wed Jul 18, 2007 12:56 pm	3	2369	Last post by shanmuga Mon Jul 23, 2007 3:48 pm
Question on plunger life by Oliver » Thu Jul 19, 2007 6:38 pm	3	2067	Last post by DR Mon Jul 23, 2007 1:12 pm
2 mL 96 well-plate by BaseballBob » Thu Jul 05, 2007 5:02 pm	2	1894	Last post by Mark Tracy Fri Jul 20, 2007 9:02 pm
on insulin separation by moon704520 » Thu Jul 19, 2007 3:57 am	3	2221	Last post by Bryan Evans Fri Jul 20, 2007 11:39 am
waters 501 pump by actthafool » Thu Jul 19, 2007 3:39 pm	2	1773	Last post by actthafool Fri Jul 20, 2007 7:25 am
No Peak is obtainable by denial » Wed Jul 18, 2007 6:23 am	2	1970	Last post by denial Fri Jul 20, 2007 6:33 am
HPLC Chiral Separation by Reversed-Phase by mjs20323 » Wed Jul 18, 2007 4:25 pm	4	3467	Last post by iSeparate Fri Jul 20, 2007 4:40 am
Detector linearity calibration by rnelson » Wed Jul 18, 2007 4:45 pm	1	2581	Last post by Mark Tracy Thu Jul 19, 2007 11:04 pm

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