Liquid Chromatography

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11920 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	93119	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

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Response factor from degradation experiment by aceto_81 » Tue Apr 12, 2011 8:42 am	7	2362	Last post by Mattias Tue Apr 19, 2011 7:18 am
Loss of selectivity in Xbridge columns at hight pH by vikmnilu » Thu Mar 10, 2011 8:56 am	14	4847	Last post by ym3142 Mon Apr 18, 2011 12:42 pm
Flourescence settings by miro2009 » Thu Apr 14, 2011 1:31 pm	5	2484	Last post by tom jupille Sun Apr 17, 2011 9:14 pm
Analysis of mycotoxins in vegetables by zanio » Sat Apr 16, 2011 11:00 am	1	2326	Last post by DSP007 Sun Apr 17, 2011 8:37 pm
Bio-Inert LC? by Karen01 » Wed Mar 30, 2011 6:28 pm	7	5746	Last post by DSP007 Sun Apr 17, 2011 6:28 pm
Need book by aezee » Sun Apr 17, 2011 8:45 am	1	1438	Last post by Don_Hilton Sun Apr 17, 2011 1:26 pm
Experience with Nexera Shimadzu system. Empower. by michaldousa » Thu Jan 06, 2011 12:19 pm	7	2462	Last post by a.srikanth Sat Apr 16, 2011 6:42 am
What could be the reason for this HPLC analysis? by Sandra7 » Wed Apr 13, 2011 3:37 am	18	3358	Last post by Sandra7 Fri Apr 15, 2011 10:21 pm
Flushing in IEC system by thohry » Wed Apr 13, 2011 3:34 pm	2	1497	Last post by thohry Fri Apr 15, 2011 4:32 pm
Surfactin doubts by Gilberto » Thu Apr 14, 2011 3:01 pm	1	1243	Last post by tom jupille Thu Apr 14, 2011 3:32 pm
cellulose and PEG (Polyethylene Glycol) HPLC method ? by raj_2011 » Thu Mar 31, 2011 1:21 am	3	1648	Last post by DSP007 Thu Apr 14, 2011 9:16 am
Agilent Bin Pump Initiation Problem by sekarbioanalytical » Wed Apr 13, 2011 10:25 am	5	1846	Last post by agilentchina Thu Apr 14, 2011 2:34 am
Looking for a ref paper ... by kopkromfer » Wed Apr 13, 2011 11:37 pm	0	1299	Last post by kopkromfer Wed Apr 13, 2011 11:37 pm
tertiary and quatenary amines by push » Fri Apr 08, 2011 7:44 pm	5	1602	Last post by XL Wed Apr 13, 2011 9:05 pm
Waters 2695 battery change by Alex Buske » Wed Apr 13, 2011 1:38 pm	1	2042	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	2972	Last post by DSP007 Wed Apr 13, 2011 4:01 pm
docetaxel extraction issues by SC85 » Wed Apr 13, 2011 2:57 pm	2	4272	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	11392	Last post by carls Wed Apr 13, 2011 2:46 pm
Dionex UHPLC by shishanA » Fri Apr 08, 2011 9:13 am	2	2202	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	2739	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	1507	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	2134	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	1653	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	1826	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	2888	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	1720	Last post by DSP007 Sun Apr 10, 2011 8:48 pm
Removing dodecane by bobby12 » Fri Apr 08, 2011 4:51 pm	5	2668	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	2858	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	7731	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	2295	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	2756	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	2170	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	1602	Last post by H2Oh Wed Apr 06, 2011 2:21 pm
band width by mohammad » Mon Apr 04, 2011 3:38 pm	2	1761	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	1471	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	1395	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	2077	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	1699	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	1705	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	2405	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	2504	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	1849	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	2875	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	1557	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	2776	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	6818	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	2335	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	1950	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	4832	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	2957	Last post by Mike H. Wed Mar 30, 2011 7:54 pm

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