Liquid Chromatography

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Ion Chromatography Discussions about IC and related topics Topics: 399	399	1499	Last post Inquiry: Replacement housing … by darrinmoore Thu Nov 06, 2025 7:16 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
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11906 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	64343	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Waters 2695 battery change by Alex Buske » Wed Apr 13, 2011 1:38 pm	1	1934	Last post by Alex Buske Wed Apr 13, 2011 8:25 pm
Can I separate xylene isomers (o, m, p) by HPLC-UV? Methods? by rodrigaoman » Tue Apr 12, 2011 11:14 pm	2	2746	Last post by DSP007 Wed Apr 13, 2011 4:01 pm
docetaxel extraction issues by SC85 » Wed Apr 13, 2011 2:57 pm	2	4121	Last post by SC85 Thu Apr 14, 2011 7:00 pm
Water's ACQUITY vs ACQUITY H-Class by Karen01 » Tue Apr 05, 2011 12:15 am	12	10630	Last post by carls Wed Apr 13, 2011 2:46 pm
Dionex UHPLC by shishanA » Fri Apr 08, 2011 9:13 am	2	2090	Last post by Alex Buske Wed Apr 13, 2011 9:48 am
Noisy baseline - diagnostics question by LCFan » Tue Apr 12, 2011 9:17 am	6	2582	Last post by LCFan Wed Apr 13, 2011 6:36 am
qunatification of Iodine, iodide by vijayak » Tue Apr 12, 2011 9:52 am	1	1403	Last post by DSP007 Tue Apr 12, 2011 11:52 am
Non-linearity of UPLC method by aceto_81 » Thu Apr 07, 2011 8:30 am	8	1991	Last post by aceto_81 Tue Apr 12, 2011 8:37 am
Peaks not seen by ELSD by Ninus » Tue Apr 12, 2011 4:08 am	1	1564	Last post by DSP007 Tue Apr 12, 2011 7:51 am
Sedex 75 elsd - stretching limits by vestelshirley » Wed Apr 06, 2011 2:06 pm	5	1734	Last post by vestelshirley Mon Apr 11, 2011 12:48 pm
Tap water or deionised water ? by Newchromatographer » Fri Apr 08, 2011 2:38 pm	5	2683	Last post by Ryklys Mon Apr 11, 2011 12:13 pm
Problems with suppressor cartridge by Edu » Sat Apr 09, 2011 2:06 pm	1	1632	Last post by DSP007 Sun Apr 10, 2011 8:48 pm
Removing dodecane by bobby12 » Fri Apr 08, 2011 4:51 pm	5	2535	Last post by Consumer Products Guy Sat Apr 09, 2011 3:11 pm
Early eluting peak that merges with void? by Ma08873 » Thu Mar 31, 2011 5:16 am	5	2598	Last post by XL Sat Apr 09, 2011 6:22 am
agilent 1200 vs 1100 binary pumps by ljc » Sat Feb 26, 2011 10:47 pm	6	7292	Last post by carls Fri Apr 08, 2011 1:22 pm
Poor precision only affects one of the two peaks of interest by chris taylor » Thu Apr 07, 2011 7:40 pm	2	2174	Last post by chris taylor Fri Apr 08, 2011 11:32 am
Hypercarb column not for melamine analysis? by wan » Tue Mar 29, 2011 2:17 pm	3	2579	Last post by wan Fri Apr 08, 2011 5:29 am
What's going on here? Includes Chromatograms by IanB » Thu Apr 07, 2011 10:43 am	4	2076	Last post by Gilson_PLC2020 Thu Apr 07, 2011 2:43 pm
Dionex ICS2100 RFIC Mod by H2Oh » Wed Apr 06, 2011 2:21 pm	0	1519	Last post by H2Oh Wed Apr 06, 2011 2:21 pm
band width by mohammad » Mon Apr 04, 2011 3:38 pm	2	1650	Last post by mohammad Wed Apr 06, 2011 12:33 pm
Looking for book "Porous silica" by Unger - digital version by sikke » Tue Apr 05, 2011 12:49 pm	1	1376	Last post by Gerhard Kratz Wed Apr 06, 2011 11:39 am
Peks splits by Lawrence Thobejane » Wed Apr 06, 2011 7:15 am	1	1297	Last post by Gerhard Kratz Wed Apr 06, 2011 11:30 am
Gradient separation-Calculating final hold time by LMNAIR » Tue Apr 05, 2011 1:32 pm	3	1948	Last post by JGK Tue Apr 05, 2011 8:33 pm
Reference Bandwidth for DAD by Mike H. » Tue Apr 05, 2011 6:27 pm	1	1597	Last post by zokitano Tue Apr 05, 2011 6:56 pm
peak fronting at higher temperature by MestizoJoe » Tue Apr 05, 2011 1:57 pm	1	1620	Last post by zokitano Tue Apr 05, 2011 6:48 pm
Guard column leaking packing material by Ohia » Tue Apr 05, 2011 3:50 am	1	2244	Last post by Gerhard Kratz Tue Apr 05, 2011 9:23 am
HILIC and moving between buffers by Serpico » Fri Apr 01, 2011 10:44 am	4	2274	Last post by Serpico Tue Apr 05, 2011 8:43 am
e2695 and injection repeatability problem by Kasiban » Sun Apr 03, 2011 5:16 am	10	1767	Last post by Renato Tue Apr 05, 2011 3:00 am
Signal to Noise Calculations using Empower by Renato » Tue Apr 05, 2011 2:54 am	2	2739	Last post by Renato Thu Apr 07, 2011 12:34 am
Separation of Toludene isomer by Ion pair chromatography by praveenpaliwal » Mon Mar 28, 2011 7:13 pm	4	1481	Last post by ym3142 Mon Apr 04, 2011 7:34 pm
phosphate buffer gives a peak by agomulcz » Tue Mar 29, 2011 5:45 am	5	2550	Last post by ym3142 Mon Apr 04, 2011 7:13 pm
negative and/or positive baseline by kaurnavy » Sun Feb 14, 2010 4:15 am	13	6631	Last post by stev434 Sat Apr 02, 2011 11:43 pm
Operation manual for Altex 110A pump by wozj2 » Thu Jan 20, 2011 5:37 am	4	2208	Last post by stev434 Sat Apr 02, 2011 11:27 pm
Is it possible for non-retained compounds to elute before V0 by Mike H. » Thu Mar 31, 2011 7:22 pm	2	1797	Last post by Mike H. Fri Apr 01, 2011 4:40 pm
DI ISOPROPYL ETHER ICH LIMIT by vrcr » Fri Apr 01, 2011 10:00 am	1	4648	Last post by krickos Fri Apr 01, 2011 10:51 am
Using ion pairing at 229nm by Mike H. » Mon Mar 28, 2011 4:33 pm	9	2746	Last post by Mike H. Wed Mar 30, 2011 7:54 pm
HP 1090 leak shutdown by faris » Wed Mar 30, 2011 1:36 pm	1	1380	Last post by Consumer Products Guy Wed Mar 30, 2011 6:48 pm
auto Injector_linearity by mohammad » Wed Mar 30, 2011 7:18 am	2	1381	Last post by tom jupille Wed Mar 30, 2011 3:52 pm
how do I got a good IC column? by wsj365 » Tue Mar 22, 2011 12:25 pm	3	1689	Last post by wsj365 Wed Mar 30, 2011 2:57 pm
Best column to separate bromo and chloro analogs? by Klah » Tue Mar 29, 2011 7:57 pm	1	1535	Last post by juddc Tue Mar 29, 2011 8:54 pm
injection volume is changing the chromatography by R&D-Chemist » Tue Mar 29, 2011 4:21 pm	4	2120	Last post by R&D-Chemist Tue Mar 29, 2011 8:23 pm
R2 vaue by calibration curve by praveenpaliwal » Mon Mar 28, 2011 7:43 pm	5	2698	Last post by JGK Tue Mar 29, 2011 7:05 pm
wavelength dependence of UV detector RI response by tom jupille » Fri Mar 25, 2011 4:45 pm	5	2091	Last post by tom jupille Tue Mar 29, 2011 3:28 pm
what make same Uv detector different ? by Newchromatographer » Tue Mar 29, 2011 3:04 pm	6	3630	Last post by Newchromatographer Fri Apr 08, 2011 2:23 pm
THF for GPC by push » Thu Mar 10, 2011 7:37 pm	4	3650	Last post by gstaepels Tue Mar 29, 2011 9:12 am
Cleaning column with 6M Urea and IPA by cchan_21 » Fri Feb 11, 2011 2:41 pm	4	2692	Last post by HW Mueller Tue Mar 29, 2011 8:10 am
High and Low pH MP on same LC by LabChick » Mon Mar 28, 2011 2:49 pm	3	2007	Last post by LabChick Mon Mar 28, 2011 7:54 pm
HPLC problems by amro tarek » Mon Mar 28, 2011 7:03 pm	1	1649	Last post by tom jupille Mon Mar 28, 2011 7:13 pm
UV-stablizer with HPLC-ELSD by Dana » Mon Mar 28, 2011 9:20 am	9	5167	Last post by Dana Fri Apr 01, 2011 8:20 am
precaution for usgae at pH 9?? by rick1112 » Fri Mar 25, 2011 4:18 am	3	2250	Last post by bisnettrj2 Mon Mar 28, 2011 5:49 am

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