Liquid Chromatography

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Ion Chromatography Discussions about IC and related topics Topics: 403	403	1508	Last post Large water dip on ICS-6000 by NitroJennAtom Wed Jun 17, 2026 3:20 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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11923 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	124272	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
purification of amino acid by blackdrum » Fri Dec 17, 2004 4:10 am	20	11005	Last post by mtnshawn Tue Jan 11, 2005 10:50 pm
About the use of two ionic pair agents by Tequila » Fri Jan 07, 2005 10:05 am	10	5753	Last post by SIELC_Tech Tue Jan 11, 2005 4:55 pm
effect of diluent solvent pH by Kaoula » Sat Jan 08, 2005 5:39 pm	5	4715	Last post by Uwe Neue Tue Jan 11, 2005 4:25 am
help for milton roy cm4000 needed by agromanX » Mon Jan 10, 2005 11:07 am	0	3233	Last post by agromanX Mon Jan 10, 2005 11:07 am
Column test mix for LCMS Ion Trap by Drew » Mon Jan 10, 2005 3:32 am	0	3109	Last post by Drew Mon Jan 10, 2005 3:32 am
columns by hmelnickis » Fri Jan 07, 2005 6:01 am	3	3883	Last post by tom jupille Sun Jan 09, 2005 8:17 pm
Buffer preparation weights/volume by JA » Tue Jan 04, 2005 2:35 am	5	5240	Last post by JA Sat Jan 08, 2005 3:49 pm
Calibration trouble Silybin by juaant » Thu Dec 30, 2004 11:20 am	5	4598	Last post by juaant Sat Jan 08, 2005 11:51 am
Benzoic acid on Nova-Pak C18 by zabka » Wed Jan 05, 2005 10:04 am	9	6134	Last post by SIELC_Tech Sat Jan 08, 2005 1:10 am
removing H2O in serum sample for HILIC chromatography by Kazimierz » Fri Jan 07, 2005 11:19 am	5	4208	Last post by Ann Fri Jan 07, 2005 10:16 pm
Simethicone Quantitation by HPLC by lcuser » Thu Dec 30, 2004 8:52 am	1	7185	Last post by Tequila Fri Jan 07, 2005 10:22 am
Leuprorelin - Amino acids by dontibr » Mon Dec 06, 2004 4:35 am	9	6187	Last post by HW Mueller Wed Jan 05, 2005 2:06 pm
LC System Flush by Chris » Fri Dec 31, 2004 9:44 am	6	5242	Last post by HW Mueller Wed Jan 05, 2005 12:45 pm
Alltech ELSD with Agilent 1100 Chemstation 10? by lcuser » Wed Dec 29, 2004 3:05 am	5	6697	Last post by Consumer Products Guy Tue Jan 04, 2005 3:44 pm
stress study/specificity studies in method validations by bhaskarac » Mon Jan 03, 2005 6:46 am	1	3465	Last post by maris Mon Jan 03, 2005 7:19 pm
Alginate by timjm » Mon Dec 13, 2004 8:41 pm	5	4560	Last post by Chris Pohl Wed Dec 29, 2004 9:05 pm
Separation of phenylalanine and glutamine by anion ex proble by LCdude » Thu Dec 16, 2004 9:38 pm	12	6228	Last post by Kostas Petritis Tue Dec 28, 2004 8:31 pm
Minimize tailing of neutral or acidic compounds by ahalya » Mon Dec 27, 2004 7:13 pm	4	4332	Last post by Chris Pohl Tue Dec 28, 2004 4:44 pm
using thf by verez » Sun Dec 26, 2004 3:04 pm	2	4085	Last post by Chris Pohl Mon Dec 27, 2004 7:19 pm
Leaking cation supressor - Dionex DX-120 by TimJ » Mon Dec 06, 2004 11:34 am	6	6453	Last post by Chris Pohl Mon Dec 27, 2004 7:02 pm
High backpressure from columns when running water only by Mat » Tue Dec 21, 2004 2:39 pm	3	4866	Last post by Chris Pohl Mon Dec 27, 2004 6:18 pm
how to calculate height of noice by Maja » Thu Dec 23, 2004 2:09 pm	0	3581	Last post by Maja Thu Dec 23, 2004 2:09 pm
silicone by michelle.zhang » Thu Dec 23, 2004 7:38 am	0	3700	Last post by michelle.zhang Thu Dec 23, 2004 7:38 am
Ammonia limit test by MILA » Mon Dec 13, 2004 5:29 pm	3	4889	Last post by Yury Zelechonok Thu Dec 23, 2004 4:44 am
Waters uBondapak C18 Column Problems by lstyger » Wed Dec 15, 2004 8:52 pm	20	14234	Last post by Uwe Neue Thu Dec 23, 2004 12:04 am
About Mobile Phase with Triethylamine by Tequila » Wed Dec 22, 2004 9:55 am	5	14146	Last post by dlorenzo Wed Dec 22, 2004 6:42 pm
HPLC method for Hepes by MK » Wed Dec 22, 2004 6:13 pm	0	4055	Last post by MK Wed Dec 22, 2004 6:13 pm
Negative peaks by sarex » Wed Dec 22, 2004 1:37 am	1	3658	Last post by GoldLeader Wed Dec 22, 2004 4:46 pm
Chemical Derivatization of Gentamicin by arden » Sat Dec 11, 2004 1:35 am	3	5103	Last post by Einar Ponten Tue Dec 21, 2004 10:50 pm
separation of threonine and glycine by andrewn » Fri Dec 03, 2004 4:38 pm	7	5224	Last post by Einar Ponten Tue Dec 21, 2004 10:47 pm
superficial fluid chromatography by Gurunath » Tue Dec 21, 2004 12:49 pm	1	3997	Last post by tom jupille Tue Dec 21, 2004 4:07 pm
New Pump by Jim 78 » Thu Dec 16, 2004 8:29 pm	5	4826	Last post by bert Tue Dec 21, 2004 2:00 pm
SFC discussion? by smiley » Tue Dec 14, 2004 5:26 pm	3	4477	Last post by kiknos Tue Dec 21, 2004 9:00 am
SURVEYOR pda from THERMO by sanjay » Thu Dec 09, 2004 4:27 pm	3	4389	Last post by dontibr Mon Dec 20, 2004 11:56 pm
Separation and impurity profiling of nucleosides using LCMS by TGH » Thu Dec 16, 2004 11:05 pm	8	5235	Last post by Einar Ponten Mon Dec 20, 2004 11:27 pm
Separation of fatty acid methyl esters by HPLC by ewachem » Fri Dec 17, 2004 8:09 am	4	4308	Last post by ewachem Sun Dec 19, 2004 8:50 pm
Problems with Dimethyl Sufoxide by Tequila » Fri Dec 17, 2004 1:24 pm	1	3593	Last post by Uwe Neue Sat Dec 18, 2004 1:22 am
Glycerin and carbohydrates in cream by JUAN FRAN » Fri Dec 17, 2004 7:33 am	2	3748	Last post by Einar Ponten Fri Dec 17, 2004 11:00 pm
Regenerate HPLC colum by camino » Wed Dec 15, 2004 6:30 pm	3	3879	Last post by blackdrum Fri Dec 17, 2004 3:25 am
Low recovery for propyl paraben in Pharma products by Benjamin » Sun Dec 12, 2004 4:49 pm	6	4818	Last post by Benjamin Thu Dec 16, 2004 7:31 pm
pH calc for use in HPLC mobile phases by chembot » Thu Dec 16, 2004 2:24 am	2	3896	Last post by chembot Thu Dec 16, 2004 6:09 pm
HPLC water by Ammu » Sun Nov 14, 2004 11:15 am	7	6667	Last post by carey53095 Thu Dec 16, 2004 5:05 pm
baseline drift using RI detection by Ricardo » Wed Dec 15, 2004 10:58 pm	1	4034	Last post by carey53095 Thu Dec 16, 2004 4:57 pm
Assay of drug Product! by Ammu » Wed Dec 15, 2004 7:58 pm	2	3532	Last post by Dan Thu Dec 16, 2004 2:37 pm
looking for info. on macro of chemstation for agilent 1100 by smiley » Wed Dec 15, 2004 9:00 pm	0	3481	Last post by smiley Wed Dec 15, 2004 9:00 pm
Agilent MWD-Detector linear response by annavera » Wed Dec 15, 2004 3:16 pm	1	3735	Last post by HW Mueller Wed Dec 15, 2004 4:05 pm
RP-HPLC of Oligonucleotides: Regeneration by GCasi » Thu Dec 09, 2004 9:53 am	17	10249	Last post by HW Mueller Wed Dec 15, 2004 3:56 pm
Azithromycin by url_mutual » Fri Oct 22, 2004 6:38 pm	12	6481	Last post by syx Wed Dec 15, 2004 1:38 am
Disodium Pamidronate method for cleaning validation by JM » Mon Dec 13, 2004 9:12 am	4	4052	Last post by Einar Ponten Tue Dec 14, 2004 11:20 pm
Unexplained peaks by laudrup » Fri Nov 19, 2004 9:47 am	4	4704	Last post by khimik Tue Dec 14, 2004 8:37 pm

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