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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11920 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	92890	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Loss of one homolog of bensalkonium chloride by Mattias » Wed Dec 17, 2008 7:44 am	9	2628	Last post by Mattias Fri Feb 13, 2009 6:57 am
Column Pressure too high by klimbaka » Mon Aug 11, 2008 7:38 am	16	5596	Last post by ksharp Thu Feb 12, 2009 4:24 pm
Agilent 1100 Print Error by Eric Moore » Wed Feb 11, 2009 10:07 pm	3	5382	Last post by Jackus Sun Feb 15, 2009 4:29 pm
Recovery problem with SER, LYS, ARG, with AccQ-Tag/Waters by agmatinase » Tue Feb 10, 2009 11:30 am	2	2353	Last post by Uwe Neue Tue Feb 10, 2009 10:07 pm
ELS detector for high-speed separations by XL » Sun Feb 01, 2009 6:30 am	6	2590	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	4371	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	2608	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	3023	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	4647	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	2179	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	9872	Last post by juddc Mon Feb 09, 2009 3:41 pm
wavelength accuracy by nageshwar » Fri Feb 06, 2009 11:29 am	3	2744	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	14752	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	2979	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	3277	Last post by Bruce Hamilton Thu Feb 05, 2009 6:53 pm
agilent detectors by scio2 » Sat Jan 31, 2009 5:03 am	14	12721	Last post by HW Mueller Thu Feb 05, 2009 4:29 pm
RRF by pradip » Thu Feb 05, 2009 6:12 am	1	2354	Last post by tom jupille Thu Feb 05, 2009 3:16 pm
brassinosteroids by jongf » Tue Feb 03, 2009 9:27 pm	2	2240	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	2049	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	4333	Last post by HW Mueller Wed Feb 04, 2009 6:00 pm
Column Bleed? by wan » Mon Feb 02, 2009 3:29 am	3	2686	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	1999	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	1620	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	1958	Last post by nageshwar Wed Feb 04, 2009 1:04 pm
devcd information? by pipettemonkey » Wed Feb 04, 2009 3:40 am	1	1554	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	1592	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	1736	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	6051	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	6094	Last post by XL Sun Feb 01, 2009 6:12 am
blank peaks by RAMESH JANGA » Sat Jan 31, 2009 5:29 am	2	1906	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	4300	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	6579	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	1576	Last post by Uwe Neue Fri Jan 30, 2009 12:26 am
Residaul allylamine by mojo » Thu Jan 29, 2009 10:42 pm	0	1315	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	2095	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	2812	Last post by HPLCCONSULT Thu Jan 29, 2009 2:53 pm
Rotary Valve Injector by hplc1973 » Wed Jan 28, 2009 1:34 pm	4	2677	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	1461	Last post by juddc Wed Jan 28, 2009 8:22 pm
Detector by hplc1973 » Wed Jan 28, 2009 1:06 pm	1	1389	Last post by unmgvar Wed Jan 28, 2009 4:34 pm
High Recovery by kris2009 » Sun Jan 25, 2009 5:27 am	15	2938	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	1800	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	3133	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	4907	Last post by pipettemonkey Mon Jan 26, 2009 7:47 pm
Information about chemstation by shahis77 » Mon Jan 26, 2009 5:59 pm	1	3049	Last post by lmh Tue Jan 27, 2009 5:22 pm
looking for chromatograms by Forss » Mon Jan 26, 2009 10:29 am	1	1609	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	2879	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	1493	Last post by Bruce Hamilton Sat Jan 24, 2009 10:48 pm
Selegiline Assay by gurkishan » Fri Jan 23, 2009 5:31 pm	0	1331	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	1453	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	2099	Last post by unmgvar Fri Jan 23, 2009 11:09 am

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