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	83644	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
ELS detector for high-speed separations by XL » Sun Feb 01, 2009 6:30 am	6	2546	Last post by AnalyticalKen Tue Feb 10, 2009 4:00 pm
SPE Separation with a Vacuum Manifold. by John R. Carver » Mon Jan 26, 2009 9:12 pm	8	4198	Last post by Tom Waeghe Tue Feb 10, 2009 2:21 pm
Shocking a Column by Schmutz9 » Mon Feb 09, 2009 7:01 pm	3	2527	Last post by lmh Tue Feb 10, 2009 11:10 am
Evaluation of Pharmacopeial Methods by Santosh Gandhi » Sun Feb 08, 2009 2:34 pm	4	2955	Last post by JM Tue Feb 10, 2009 10:16 am
Analytical method for quantification of potassium citrate ? by dhruvil81 » Tue Jan 20, 2009 11:38 am	8	4574	Last post by mohan_2008 Tue Feb 10, 2009 2:50 am
prochlorperazine assay through HPLC. by khalidrauf » Sat Feb 07, 2009 1:05 pm	2	2129	Last post by Bruce Hamilton Mon Feb 09, 2009 8:54 pm
Determination of the impurities of Ascorbic Acid by HPLC by kliaros » Thu Feb 05, 2009 5:01 pm	17	9730	Last post by juddc Mon Feb 09, 2009 3:41 pm
wavelength accuracy by nageshwar » Fri Feb 06, 2009 11:29 am	3	2675	Last post by nageshwar Mon Feb 09, 2009 2:46 am
Ph. Eur. 2.2.46 HPLC Signal to Noise Ratio by fgleeson » Thu Feb 05, 2009 12:11 pm	3	14408	Last post by krickos Fri Feb 06, 2009 7:59 am
Placebo Interference on SEC-RI HPLC Analysis by CPR » Wed Feb 04, 2009 10:48 pm	3	2914	Last post by CPR Thu Feb 05, 2009 10:14 pm
Strange baseline disturbance ionpair-RP method by Mattias » Wed Feb 04, 2009 7:15 am	9	3212	Last post by Bruce Hamilton Thu Feb 05, 2009 6:53 pm
agilent detectors by scio2 » Sat Jan 31, 2009 5:03 am	14	12311	Last post by HW Mueller Thu Feb 05, 2009 4:29 pm
RRF by pradip » Thu Feb 05, 2009 6:12 am	1	2296	Last post by tom jupille Thu Feb 05, 2009 3:16 pm
brassinosteroids by jongf » Tue Feb 03, 2009 9:27 pm	2	2192	Last post by lmh Thu Feb 05, 2009 9:57 am
Amino column separation reproducability by benzech » Wed Feb 04, 2009 5:21 pm	6	2005	Last post by lmh Thu Feb 05, 2009 9:56 am
Decrease in Retention Time? by TNA » Wed Jan 28, 2009 2:52 am	25	4252	Last post by HW Mueller Wed Feb 04, 2009 6:00 pm
Column Bleed? by wan » Mon Feb 02, 2009 3:29 am	3	2633	Last post by tom jupille Wed Feb 04, 2009 3:47 pm
Predicting Backpressure from columns by Pierre » Sun Feb 01, 2009 5:00 pm	3	1955	Last post by Bryan Evans Wed Feb 04, 2009 2:39 pm
High Temperature SEC chromatography by wrighty » Tue Feb 03, 2009 1:22 pm	3	1575	Last post by Uwe Neue Wed Feb 04, 2009 1:48 pm
Triclosan Repeatability and reproducibility by nageshwar » Tue Jan 27, 2009 7:42 am	6	1910	Last post by nageshwar Wed Feb 04, 2009 1:04 pm
devcd information? by pipettemonkey » Wed Feb 04, 2009 3:40 am	1	1505	Last post by Kostas Petritis Wed Feb 04, 2009 5:09 am
Fluoroquinones in soil: extraction? by jbshan » Mon Feb 02, 2009 6:10 am	1	1538	Last post by laserman Mon Feb 02, 2009 7:32 am
Analysis of brewer's yeast tablet by zlb215 » Mon Jan 05, 2009 3:18 pm	1	1692	Last post by Don_Hilton Mon Feb 02, 2009 5:02 am
Base Deactivated silica?? by rick1112 » Wed Jan 28, 2009 4:30 am	12	5885	Last post by danko Sun Feb 01, 2009 2:00 pm
Need help, splited peak and SDS by zeq » Thu Jan 08, 2009 1:19 pm	34	5961	Last post by XL Sun Feb 01, 2009 6:12 am
blank peaks by RAMESH JANGA » Sat Jan 31, 2009 5:29 am	2	1853	Last post by zokitano Sat Jan 31, 2009 2:44 pm
Calculating relative response factors for impurities by mikea » Fri Jan 30, 2009 1:03 am	4	4158	Last post by mikea Sat Jan 31, 2009 4:54 am
Possible problems with Hexane in NP HPLC by aalbre » Thu Jan 15, 2009 9:04 am	8	6356	Last post by HPLCCONSULT Fri Jan 30, 2009 2:26 pm
analysis of ethylene glycol by martinamarie » Fri Jan 30, 2009 12:18 am	1	1527	Last post by Uwe Neue Fri Jan 30, 2009 12:26 am
Residaul allylamine by mojo » Thu Jan 29, 2009 10:42 pm	0	1261	Last post by mojo Thu Jan 29, 2009 10:42 pm
Hplc Related Substances Problem (Accuracy, Linearity & R by seamoro » Thu Jan 29, 2009 11:41 am	4	2054	Last post by Bruce Hamilton Thu Jan 29, 2009 6:53 pm
is it normal to have splitted peaks on ELSD? by chromlc » Thu Jan 22, 2009 11:53 pm	2	2695	Last post by HPLCCONSULT Thu Jan 29, 2009 2:53 pm
Rotary Valve Injector by hplc1973 » Wed Jan 28, 2009 1:34 pm	4	2541	Last post by skunked_once Wed Jan 28, 2009 8:52 pm
waters 991 PDA by jongf » Wed Jan 28, 2009 4:30 pm	2	1420	Last post by juddc Wed Jan 28, 2009 8:22 pm
Detector by hplc1973 » Wed Jan 28, 2009 1:06 pm	1	1320	Last post by unmgvar Wed Jan 28, 2009 4:34 pm
High Recovery by kris2009 » Sun Jan 25, 2009 5:27 am	15	2828	Last post by kris2009 Tue Jan 27, 2009 5:22 pm
Prefeerences for chromatography DOE software by reyoungs » Tue Jan 13, 2009 2:09 am	3	1741	Last post by juddc Tue Jan 27, 2009 5:17 pm
Calculate HETP on a linear gradient by blaise5669 » Thu Jan 22, 2009 5:52 pm	4	3029	Last post by Uwe Neue Mon Jan 26, 2009 11:36 pm
Acetonitrile substitute by aceto_81 » Fri Jan 16, 2009 12:33 pm	6	4795	Last post by pipettemonkey Mon Jan 26, 2009 7:47 pm
Information about chemstation by shahis77 » Mon Jan 26, 2009 5:59 pm	1	2993	Last post by lmh Tue Jan 27, 2009 5:22 pm
looking for chromatograms by Forss » Mon Jan 26, 2009 10:29 am	1	1552	Last post by krickos Mon Jan 26, 2009 10:44 am
How standard degradation can affect sample recoveries by mohan_2008 » Fri Jan 23, 2009 1:38 am	11	2725	Last post by danko Sun Jan 25, 2009 10:34 am
pressure problem with 1%THF in 2,2,4-Trimethylpentane by Lyser » Fri Jan 23, 2009 10:44 am	2	1439	Last post by Bruce Hamilton Sat Jan 24, 2009 10:48 pm
Selegiline Assay by gurkishan » Fri Jan 23, 2009 5:31 pm	0	1264	Last post by gurkishan Fri Jan 23, 2009 5:31 pm
how do you get naquadria by pipettemonkey » Thu Jan 22, 2009 6:00 pm	2	1411	Last post by Kostas Petritis Fri Jan 23, 2009 4:34 pm
Which GPC to buy? by Leticia » Wed Jan 21, 2009 3:53 pm	4	2036	Last post by unmgvar Fri Jan 23, 2009 11:09 am
Relative Response Factor by addy » Mon Jan 19, 2009 3:31 am	3	1813	Last post by tom jupille Thu Jan 22, 2009 6:51 pm
Acetonitrile in Iron Drums by meger » Wed Jan 21, 2009 6:58 pm	1	1519	Last post by danko Thu Jan 22, 2009 11:11 am
evaporation in a freezer? by bert » Wed Jan 21, 2009 2:02 pm	2	1684	Last post by Peter Apps Wed Jan 21, 2009 2:47 pm
Advice on paraben method by chemgeek » Tue Jan 13, 2009 6:40 pm	6	2060	Last post by chemgeek Wed Jan 21, 2009 1:32 pm

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