Liquid Chromatography

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Ion Chromatography Discussions about IC and related topics Topics: 398	398	1498	Last post Re: Carbonates by liko44 Sat Oct 18, 2025 5:45 am
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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11908 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	62561	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Area under peak by anjali » Sat Dec 08, 2007 7:43 am	1	1499	Last post by tom jupille Sun Dec 09, 2007 1:21 am
Please Help...Reproducability Problems by KHall » Thu Dec 06, 2007 11:10 pm	2	1618	Last post by juddc Fri Dec 07, 2007 5:12 pm
Prep Scale Columns by HUH? » Thu Nov 29, 2007 5:03 pm	1	1756	Last post by Chris0000 Fri Dec 07, 2007 10:49 am
DAC column packing problems by moon704520 » Wed Dec 05, 2007 3:57 pm	5	1939	Last post by moon704520 Fri Dec 07, 2007 1:16 am
Could you help to get polar product eluting out? by moonchips » Mon Dec 03, 2007 5:33 pm	5	1892	Last post by moonchips Thu Dec 06, 2007 7:39 pm
PERSISTENT GHOST PEAK NEED HELP! by ARM » Sun Nov 11, 2007 10:07 pm	20	6597	Last post by HW Mueller Thu Dec 06, 2007 4:32 pm
Retention on PEEK? by Mattias » Tue Dec 04, 2007 8:01 am	11	2719	Last post by Mattias Thu Dec 06, 2007 8:40 am
interested in the production process of silica and RP-silica by moon704520 » Tue Dec 04, 2007 12:15 pm	4	1833	Last post by SIELC_Tech Wed Dec 05, 2007 11:37 pm
TPGS by shuimu » Wed Nov 28, 2007 5:05 pm	4	2389	Last post by JGK Wed Dec 05, 2007 9:52 pm
triclosan analysis by olivia » Sun Dec 02, 2007 2:39 pm	2	3657	Last post by olivia Tue Dec 04, 2007 11:36 pm
Method variation?? by rick1112 » Tue Dec 04, 2007 6:45 am	0	1437	Last post by rick1112 Tue Dec 04, 2007 6:45 am
a:b and b:c unsaturated esters by Aerial » Mon Dec 03, 2007 10:08 pm	1	1422	Last post by ym3142 Tue Dec 04, 2007 3:43 am
will large volume DMSO hurt my preparative scale column by moon704520 » Mon Dec 03, 2007 12:47 pm	2	2009	Last post by Uwe Neue Tue Dec 04, 2007 12:12 am
t-Boc amino acid chiral separation by gseres » Thu Nov 29, 2007 4:44 pm	1	2084	Last post by JA Mon Dec 03, 2007 8:25 pm
Late eluting peaks Spiltting by rc_12321 » Thu Nov 22, 2007 2:05 pm	10	4233	Last post by jthornburg Mon Dec 03, 2007 6:07 pm
How to trouble shooting none peaks by creageng » Wed Nov 28, 2007 4:44 am	5	2701	Last post by tom jupille Sat Dec 01, 2007 7:57 pm
What is "throw time" by firework1 » Fri Nov 30, 2007 10:27 pm	1	1725	Last post by tom jupille Sat Dec 01, 2007 7:54 pm
what is different between empower software and Chemstation by sreedharan » Fri Nov 30, 2007 11:16 am	5	4284	Last post by sreedharan Sat Dec 01, 2007 4:24 am
Is isopropanol bad for phenyl columns? by highmorale » Fri Nov 30, 2007 3:54 pm	1	1639	Last post by zokitano Fri Nov 30, 2007 5:14 pm
Prep Column Problems by HUH? » Wed Nov 28, 2007 7:59 pm	1	1713	Last post by Bruce Hamilton Thu Nov 29, 2007 11:51 pm
Re: Sepn of choline and trimethylamine via IC/HPLC by IC_Gal » Wed Nov 21, 2007 4:54 pm	9	3132	Last post by SIELC_Tech Thu Nov 29, 2007 1:45 pm
Irregular negative baseline by casaciofcarmelina » Thu Nov 29, 2007 9:00 am	0	1636	Last post by casaciofcarmelina Thu Nov 29, 2007 9:00 am
UPLC by chembot » Wed Nov 28, 2007 6:02 pm	1	1858	Last post by tom jupille Wed Nov 28, 2007 6:56 pm
internal standards in HPLC by rerecicht » Tue Nov 27, 2007 8:01 pm	2	2106	Last post by rerecicht Wed Nov 28, 2007 4:23 pm
Quenching with glycerol by Chromadave » Tue Nov 27, 2007 10:15 am	7	2468	Last post by HW Mueller Wed Nov 28, 2007 7:35 am
Varian 9300 Autosampler by Noser222 » Wed Nov 28, 2007 4:18 am	0	1768	Last post by Noser222 Wed Nov 28, 2007 4:18 am
resolution as function of k' by chembot » Tue Nov 27, 2007 5:02 pm	1	1961	Last post by tom jupille Tue Nov 27, 2007 8:02 pm
Benzyl alcohol analysis via HPLC by mikea » Tue Nov 27, 2007 6:26 pm	2	3090	Last post by mfahe Tue Nov 27, 2007 7:59 pm
difference between polar encapped and polar embededed column by PHOBIUS » Thu Nov 22, 2007 1:31 pm	14	5280	Last post by Bryan Evans Tue Nov 27, 2007 2:04 pm
Selectivity Contribution: Column vs. MP/gradient Debate by Rob Burgess » Thu Nov 22, 2007 2:18 pm	3	2021	Last post by Mattias Tue Nov 27, 2007 1:01 pm
eddy diffusion by chembot » Mon Nov 26, 2007 2:52 am	3	2792	Last post by Uwe Neue Tue Nov 27, 2007 12:08 am
Injecting Hexane into a Reversed Phase System by adam » Fri Nov 16, 2007 6:47 pm	5	5986	Last post by tom jupille Mon Nov 26, 2007 10:40 pm
Interpretation of BP RS text by Karan » Mon Nov 26, 2007 10:46 am	3	2209	Last post by tom jupille Mon Nov 26, 2007 7:58 pm
organic modifier chemistry by chembot » Fri Nov 23, 2007 10:44 pm	2	2345	Last post by tom jupille Mon Nov 26, 2007 5:30 am
Sulfated oligosaccharides by paulwbb4 » Sat Nov 24, 2007 6:00 am	0	1719	Last post by paulwbb4 Sat Nov 24, 2007 6:00 am
S/N determination by Mattias » Mon Nov 12, 2007 8:24 am	10	3988	Last post by Dan Sat Nov 24, 2007 1:01 am
Pyridoxine storage by Tom Ashton » Wed Nov 21, 2007 2:07 pm	1	1622	Last post by paul duque Thu Nov 22, 2007 7:38 am
supercritical fluid chromatography by Raquel » Mon Nov 19, 2007 6:32 pm	2	2209	Last post by sball Wed Nov 21, 2007 4:18 pm
Use Empower to control phenomenex column selector by Shanextan » Tue Nov 20, 2007 3:38 pm	1	1687	Last post by AA Wed Nov 21, 2007 1:43 pm
Use of stored solutions by Sunjay » Wed Nov 21, 2007 11:37 am	1	1698	Last post by shaun78 Wed Nov 21, 2007 12:11 pm
assay test of coated tablets by paul duque » Wed Nov 14, 2007 3:00 am	8	2489	Last post by paul duque Wed Nov 21, 2007 7:45 am
DAD Lamp by LC_Trouble » Tue Nov 20, 2007 7:09 pm	1	1598	Last post by Consumer Products Guy Tue Nov 20, 2007 8:50 pm
LC Dionex peaks troubleshooting by Imran » Wed Nov 14, 2007 3:03 pm	5	2178	Last post by unmgvar Tue Nov 20, 2007 6:32 pm
HPLC of Nucleic Acids by Eric Moore » Tue Oct 23, 2007 7:50 pm	8	3018	Last post by Eric Moore Tue Nov 20, 2007 3:47 pm
Is there any upper limit for gradient time (40-50 hours) by zf12345 » Mon Nov 19, 2007 5:34 am	5	2229	Last post by Bryan Evans Tue Nov 20, 2007 2:27 pm
Allowance for undissolved solids by AdrianF » Thu Nov 15, 2007 4:51 pm	15	4998	Last post by zokitano Mon Nov 19, 2007 4:48 pm
usp calculation by olivia » Sun Nov 18, 2007 2:14 pm	2	2018	Last post by AdrianF Mon Nov 19, 2007 10:10 am
system suitability for peptide mapping?? by rick1112 » Sat Nov 17, 2007 5:25 am	3	1978	Last post by danko Mon Nov 19, 2007 9:43 am
critical mass by mondy » Fri Nov 16, 2007 12:11 pm	3	1885	Last post by mondy Mon Nov 19, 2007 8:25 am
Peaks elute from the following run by genggeng » Tue Nov 13, 2007 10:53 pm	5	2013	Last post by Kostas Petritis Mon Nov 19, 2007 1:10 am

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