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	84056	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Peptide nightmare by chichibabin » Tue Mar 13, 2007 6:06 pm	2	2082	Last post by noam Wed Mar 14, 2007 7:14 pm
hi all by raghunandan » Fri Mar 09, 2007 6:10 am	5	2636	Last post by SIELC_Tech Mon Mar 12, 2007 9:03 pm
Are you happy with your UPLC? by lamond1973 » Tue Feb 20, 2007 11:05 am	20	8886	Last post by Wayne Way Mon Mar 12, 2007 2:15 pm
phenomenex Gemini C-18 column problem please help by fkw » Sat Mar 10, 2007 7:10 pm	9	4255	Last post by Noser222 Mon Mar 12, 2007 1:46 pm
peak separation by vanja13 » Fri Mar 09, 2007 9:47 am	3	2842	Last post by vanja13 Mon Mar 12, 2007 8:28 am
Bischoff- POPLC by vanja13 » Fri Feb 23, 2007 9:40 am	11	5042	Last post by vanja13 Mon Mar 12, 2007 7:06 am
Bad Baseline in High Speed by syx » Tue Feb 06, 2007 4:06 am	14	5316	Last post by syx Mon Mar 12, 2007 1:08 am
Column life by shah_sunil » Sat Mar 10, 2007 11:55 am	2	2112	Last post by Uwe Neue Sat Mar 10, 2007 5:45 pm
Void volume marker for SAX phase by martin lund » Fri Mar 09, 2007 11:45 am	2	2142	Last post by Bruce Hamilton Fri Mar 09, 2007 5:50 pm
Nitro compound separation by lcollard » Mon Mar 05, 2007 11:01 am	3	3819	Last post by Rob Burgess Fri Mar 09, 2007 1:55 pm
Keto-enol tautomerism by Philip » Fri Mar 09, 2007 1:02 am	5	4828	Last post by JM Fri Mar 09, 2007 8:44 am
ammonium analysis using HPLC by Louise77 » Tue Mar 06, 2007 11:32 am	4	3987	Last post by maria.rey Thu Mar 08, 2007 10:25 pm
Buffer pH vs analyte pKa about peak tailing by ym3142 » Tue Feb 27, 2007 3:11 pm	43	16200	Last post by ym3142 Thu Mar 08, 2007 5:02 am
method validation duoloxetine by sanjeev » Wed Mar 07, 2007 5:09 am	1	2256	Last post by Bruce Hamilton Wed Mar 07, 2007 8:48 am
Thermo Hypersil Gold vs Synergi RP polar column by HaruYap » Tue Feb 27, 2007 8:30 am	2	3110	Last post by Uwe Neue Wed Mar 07, 2007 4:15 am
method validation : duloxetine (IS ANYONE LISTENING?????)... by sanjeev » Tue Mar 06, 2007 7:00 am	3	2543	Last post by tom jupille Tue Mar 06, 2007 8:49 pm
column query: duloxetin by sanjeev » Tue Mar 06, 2007 7:05 am	0	1755	Last post by sanjeev Tue Mar 06, 2007 7:05 am
AEX for proteins by KAR10 » Fri Mar 02, 2007 4:12 pm	5	2761	Last post by KAR10 Mon Mar 05, 2007 9:31 pm
Dionex AS40 sample vials by H2Oh » Mon Mar 05, 2007 4:14 pm	0	1836	Last post by H2Oh Mon Mar 05, 2007 4:14 pm
supply: phytochmeical reference <extracts> by leo21 » Mon Mar 05, 2007 7:48 am	0	1752	Last post by leo21 Mon Mar 05, 2007 7:48 am
Determination of parabens by sara allen » Tue Feb 27, 2007 4:12 am	3	2178	Last post by sara allen Mon Mar 05, 2007 5:44 am
Book Review - High-Performance Gradient Elution by Bruce Hamilton » Fri Mar 02, 2007 8:05 pm	4	3653	Last post by tom jupille Sun Mar 04, 2007 3:43 am
octadecylsilyl vinyl polymer column by Louise77 » Sat Mar 03, 2007 5:57 am	2	6032	Last post by Uwe Neue Sat Mar 03, 2007 4:51 pm
do you have peak shouldering/splitting cases by ym3142 » Sat Mar 03, 2007 1:07 pm	0	1986	Last post by ym3142 Sat Mar 03, 2007 1:07 pm
Glycoprotein Sepn with HILIC Columns by mprajesh » Thu Mar 01, 2007 5:35 pm	5	2890	Last post by SIELC_Tech Sat Mar 03, 2007 4:57 am
a rookie question for hplc by clint » Fri Mar 02, 2007 3:00 pm	4	2730	Last post by clint Fri Mar 02, 2007 9:16 pm
Software to control Shimadzu SCL-10Avp by agrp87 » Fri Feb 23, 2007 11:00 pm	6	5315	Last post by sfe-co2 Fri Mar 02, 2007 1:25 pm
Mixed-Mode Columns by rmonsef » Thu Mar 01, 2007 9:13 pm	2	2212	Last post by SIELC_Tech Fri Mar 02, 2007 4:43 am
HPLC separation of cross links from collagen by rajeev » Thu Mar 01, 2007 7:11 pm	2	2046	Last post by SIELC_Tech Fri Mar 02, 2007 4:39 am
Another weird observation with SEC by Rocnex1 » Tue Feb 27, 2007 10:37 pm	4	2210	Last post by HW Mueller Thu Mar 01, 2007 12:48 pm
Neff by koen_shimadzu » Tue Feb 27, 2007 9:34 pm	3	2524	Last post by koen_shimadzu Thu Mar 01, 2007 8:00 am
Retention time change by ghie malig » Wed Feb 28, 2007 9:46 am	11	3357	Last post by Bruce Hamilton Thu Mar 01, 2007 4:04 am
dissolving silica at high pH by nappy » Tue Feb 06, 2007 11:44 pm	3	3787	Last post by nappy Wed Feb 28, 2007 10:19 pm
separation of Impurity B, Ibuprofen, and 4-isobutylacetophen by eldrids » Wed Feb 28, 2007 3:17 pm	0	1947	Last post by eldrids Wed Feb 28, 2007 3:17 pm
column stability in acetic acid? by skunked_once » Tue Feb 27, 2007 6:51 pm	5	3380	Last post by skunked_once Wed Feb 28, 2007 2:40 pm
Joining two columns together and running all in one? by wildlycrazy » Sun Feb 25, 2007 9:53 pm	5	2474	Last post by chromatographer1 Wed Feb 28, 2007 2:32 pm
Estimates of LOQ using regression vs S/N for SEC methods by oldtimer » Tue Feb 27, 2007 3:51 pm	2	2180	Last post by zokitano Wed Feb 28, 2007 1:06 pm
HPLC or GC? by Consumer Products Guy » Tue Feb 27, 2007 1:55 am	3	2433	Last post by zokitano Wed Feb 28, 2007 12:58 pm
challenge - weird SEC resutls by Rocnex1 » Mon Feb 26, 2007 9:56 pm	7	3444	Last post by HW Mueller Wed Feb 28, 2007 9:03 am
loss peak intensity on Sedex 55 ELSD? by Cathy » Fri Feb 23, 2007 6:06 pm	5	3157	Last post by Kostas Petritis Wed Feb 28, 2007 5:59 am
Effect of flow rate on peak area by Rocnex1 » Mon Feb 26, 2007 10:55 pm	5	10364	Last post by Rocnex1 Tue Feb 27, 2007 10:26 pm
HPLC Calculations by akthmps » Mon Feb 26, 2007 5:54 pm	4	3111	Last post by Mark Tracy Tue Feb 27, 2007 7:52 pm
question about reversed-phase column by rajeev » Tue Feb 20, 2007 3:14 pm	4	2886	Last post by rajeev Tue Feb 27, 2007 1:48 pm
Minimum Detection Limit by Alain » Tue Feb 27, 2007 4:00 am	2	2120	Last post by Bruce Hamilton Tue Feb 27, 2007 8:37 am
Purifaction stage process change by zcuteeye » Mon Feb 26, 2007 1:24 pm	2	1997	Last post by zcuteeye Mon Feb 26, 2007 8:24 pm
Frustrated by column distributor by JA » Fri Feb 23, 2007 1:44 pm	5	2779	Last post by developer1974 Mon Feb 26, 2007 12:22 pm
Precision Issues by Martina » Mon Feb 19, 2007 7:33 am	7	2974	Last post by Karan Mon Feb 26, 2007 4:50 am
Revalidation of chromatography with upstream process change by shandre » Sun Feb 25, 2007 1:28 am	7	3476	Last post by shandre Sun Feb 25, 2007 9:49 pm
Jordi PS DVB columns by sfe-co2 » Mon Feb 19, 2007 12:27 pm	4	2868	Last post by sfe-co2 Sat Feb 24, 2007 4:34 am
TFA concentration by chichibabin » Wed Feb 21, 2007 2:02 pm	8	3931	Last post by tom jupille Sat Feb 24, 2007 4:08 am

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