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	83688	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
column suggestion by tatianak » Thu Mar 27, 2008 10:29 am	15	4471	Last post by Bryan Evans Tue Apr 01, 2008 2:35 pm
Solubility in Oils by chandusabini » Thu Mar 20, 2008 11:18 am	2	1905	Last post by Consumer Products Guy Mon Mar 31, 2008 8:51 pm
Search for a general program for rinsing column by vicou_chen » Mon Mar 31, 2008 11:47 am	0	1492	Last post by vicou_chen Mon Mar 31, 2008 11:47 am
Column lifetime:- C8 Vs. C18??? by rick1112 » Wed Mar 26, 2008 8:20 am	7	3941	Last post by tom jupille Sat Mar 29, 2008 7:49 pm
Agilent 1100 Degasser by GregK » Wed Mar 19, 2008 2:41 am	7	3776	Last post by Inst Tech Sat Mar 29, 2008 11:19 am
printing report (agilent 1200 chemstaion) by krystynakk » Thu Mar 27, 2008 9:17 pm	4	3346	Last post by Noser222 Fri Mar 28, 2008 5:57 pm
dead time by tatianak » Fri Mar 28, 2008 10:47 am	3	3631	Last post by coquim Fri Mar 28, 2008 2:46 pm
the use of SDS in mobile phase? by canhasan » Sat Mar 15, 2008 2:17 pm	7	6154	Last post by Rob Burgess Fri Mar 28, 2008 11:36 am
washing between injections agilent 1200 by krystynakk » Wed Mar 19, 2008 7:01 pm	1	1742	Last post by Consumer Products Guy Fri Mar 28, 2008 10:11 am
Reference Standards for cGMP by Consumer Products Guy » Wed Mar 26, 2008 4:45 pm	6	4565	Last post by Alfred88 Thu Mar 27, 2008 10:59 pm
Interesting problem with vitamins and antibiotics by Pedja » Thu Mar 27, 2008 8:23 am	3	1883	Last post by Einar Ponten Thu Mar 27, 2008 10:30 pm
end capped column for arnica extract by krystynakk » Thu Mar 27, 2008 9:10 pm	0	1577	Last post by krystynakk Thu Mar 27, 2008 9:10 pm
micro bondapack C18 column by tatianak » Wed Mar 26, 2008 10:23 am	7	5080	Last post by Bruce Hamilton Thu Mar 27, 2008 6:24 pm
Adding noise to theoretical breakthrought cirves by annaand » Mon Mar 24, 2008 8:39 pm	3	1994	Last post by Uwe Neue Thu Mar 27, 2008 4:54 pm
Injection volume as a function of stationary phase by adam » Wed Mar 26, 2008 4:17 pm	4	1828	Last post by Uwe Neue Thu Mar 27, 2008 4:51 pm
Searching for my dream column! by greenhuntress » Mon Mar 24, 2008 10:16 pm	15	4752	Last post by Uwe Neue Thu Mar 27, 2008 4:48 pm
Separation with RP HPLC by DH » Thu Mar 27, 2008 7:35 am	0	1723	Last post by DH Thu Mar 27, 2008 7:35 am
cGMP System Suitability by Consumer Products Guy » Wed Mar 26, 2008 4:40 pm	3	3005	Last post by wrxtotoro Wed Mar 26, 2008 10:54 pm
Thermo Electron columns by adam » Mon Mar 10, 2008 7:55 pm	5	2846	Last post by wrxtotoro Wed Mar 26, 2008 10:25 pm
Agilent 1100 and external contacts by randy » Thu Feb 21, 2008 10:36 pm	18	11611	Last post by randy Wed Mar 26, 2008 5:51 pm
why my retention time increase? by moon704520 » Tue Mar 18, 2008 1:41 am	2	2826	Last post by moon704520 Wed Mar 26, 2008 4:17 am
Separation of Ethylene Glycol, Formamide, and DMSO by ebasarah » Thu Mar 20, 2008 8:00 pm	28	6674	Last post by Einar Ponten Wed Mar 26, 2008 12:32 am
ASTM Noise - Agilent 1100 RI by Noser222 » Thu Mar 20, 2008 3:30 pm	12	7713	Last post by katekawa Tue Mar 25, 2008 9:48 pm
Outlet Check Valve Filter on a Varian Prostar 230 inert Pump by MJ » Tue Mar 25, 2008 7:30 am	0	1723	Last post by MJ Tue Mar 25, 2008 7:30 am
agilent 1200 steel/peek tubing (versus varian) by krystynakk » Sat Mar 22, 2008 9:25 am	3	2274	Last post by mbicking Mon Mar 24, 2008 8:19 pm
Which column for basic analytes by fdrca » Fri Mar 14, 2008 3:23 pm	15	5558	Last post by Uwe Neue Sun Mar 23, 2008 3:38 pm
Tetraethylammonium - good basic ion pair agent? by peptidemetdev » Tue Mar 11, 2008 2:25 am	4	3428	Last post by Chris Pohl Sat Mar 22, 2008 4:20 am
washing between injections agilent 1200 by krystynakk » Wed Mar 19, 2008 7:12 pm	8	10665	Last post by mbicking Fri Mar 21, 2008 8:13 pm
Baseline Issue with Pic Gradient HPLC Run by RMHPLCGUY » Tue Mar 04, 2008 6:45 pm	7	3454	Last post by ebasarah Fri Mar 21, 2008 6:32 pm
Reason for C18 by chandusabini » Sun Mar 16, 2008 2:57 am	5	2346	Last post by Parsival Fri Mar 21, 2008 3:36 pm
RT variations by FredMSD » Wed Mar 19, 2008 10:51 am	8	2223	Last post by tom jupille Fri Mar 21, 2008 12:34 pm
Help Locating HPLC equipment manufacturers by ccharles » Fri Mar 14, 2008 1:53 pm	10	4589	Last post by mcbart Fri Mar 21, 2008 7:32 am
Negative Peaks and Mobile Phase Degassing by Eric Moore » Fri Mar 14, 2008 11:43 am	13	3678	Last post by tom jupille Fri Mar 21, 2008 12:34 am
Humidity Affects Baseline?? by Elmiko » Tue Mar 18, 2008 6:48 pm	9	3419	Last post by juddc Thu Mar 20, 2008 10:02 pm
baseline stability criteria by coquim » Thu Mar 20, 2008 2:15 pm	1	1578	Last post by JGK Thu Mar 20, 2008 7:03 pm
lifetime column by coquim » Wed Mar 19, 2008 2:16 pm	7	2043	Last post by coquim Thu Mar 20, 2008 1:56 am
Sulfite determination in the presence of tosylate by mojo » Tue Feb 26, 2008 8:12 pm	2	2281	Last post by Chris Pohl Thu Mar 20, 2008 12:20 am
questions on ion-pair chromatography by rick1112 » Wed Mar 05, 2008 11:41 am	10	5162	Last post by Chris Pohl Wed Mar 19, 2008 11:59 pm
check valves jammed by coquim » Tue Mar 18, 2008 7:01 pm	4	2364	Last post by coquim Wed Mar 19, 2008 11:47 am
Disregard limit & Method Validation by Milosh » Tue Mar 18, 2008 8:48 pm	1	4312	Last post by bartjoosen Wed Mar 19, 2008 8:54 am
Setting up contact closures by Stryder08 » Wed Mar 19, 2008 3:00 am	0	1655	Last post by Stryder08 Wed Mar 19, 2008 3:00 am
Guard columns with UPLC by adam » Tue Mar 18, 2008 11:39 pm	2	2177	Last post by Uwe Neue Wed Mar 19, 2008 1:54 am
Derivatization of formaldehyde in basic media by Pegry » Thu Mar 13, 2008 11:27 am	11	5518	Last post by Pegry Tue Mar 18, 2008 7:01 pm
silica Particle structure? by rick1112 » Sat Mar 15, 2008 5:35 am	14	3407	Last post by cyanogen78 Tue Mar 18, 2008 5:47 pm
Reduction of resolution between two chemical entity by prashant.pqa » Sun Mar 16, 2008 12:14 pm	4	2195	Last post by AdrianF Mon Mar 17, 2008 4:50 pm
Pressure Issues using AKTA and FPLC column by kmeehan » Mon Mar 17, 2008 12:31 am	3	3984	Last post by tom jupille Mon Mar 17, 2008 3:16 pm
non linearity by pliva » Fri Mar 14, 2008 7:20 am	4	2035	Last post by mbicking Mon Mar 17, 2008 3:14 pm
inter/intrabatch precision by PHOBIUS » Mon Mar 17, 2008 8:19 am	1	1638	Last post by JGK Mon Mar 17, 2008 12:13 pm
Analytical technique for low dose molecules by chandusabini » Sun Mar 16, 2008 2:55 am	2	1668	Last post by AdrianF Mon Mar 17, 2008 8:56 am
high pH and temp together on XTerraMS by dorota35 » Wed Mar 05, 2008 7:40 am	5	1999	Last post by cyanogen78 Mon Mar 17, 2008 8:46 am

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