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	84048	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
alendronate anaysis by shweta chauhan » Sun Jan 14, 2007 12:08 pm	1	2045	Last post by Mark Tracy Mon Jan 15, 2007 5:14 pm
Validation by VJ » Mon Jan 15, 2007 5:16 am	2	2400	Last post by VJ Mon Jan 15, 2007 3:11 pm
Polymer GPC by jdlh199 » Sat Jan 13, 2007 12:03 am	5	2941	Last post by Uwe Neue Sun Jan 14, 2007 7:22 pm
Test of PHMB by Alfred88 » Thu Jan 11, 2007 1:47 am	3	2698	Last post by Consumer Products Guy Fri Jan 12, 2007 10:41 pm
Sample preparation techniques by John » Fri Dec 29, 2006 7:13 pm	8	3941	Last post by John Fri Jan 12, 2007 6:03 pm
Estimating Detection Limits in HPLC by Rob Burgess » Wed Jan 10, 2007 4:47 pm	6	5333	Last post by Mark Tracy Thu Jan 11, 2007 6:05 pm
Selecting/equivalent Ion Pair Agents by tzimara » Mon Dec 11, 2006 2:40 pm	3	2703	Last post by syx Thu Jan 11, 2007 5:27 am
Determination of quaternary ammonium preservatives by mross » Sun Dec 03, 2006 10:07 am	6	3687	Last post by Wen Jiang Wed Jan 10, 2007 11:46 pm
Urban legend in HPLC - Feedback from manufacturers by Fabiano » Sun Dec 17, 2006 4:29 pm	10	4622	Last post by Markus Laeubli, Metrohm Wed Jan 10, 2007 11:15 am
Baiseline with TFA in the MP by danko » Wed Dec 20, 2006 11:49 am	9	3501	Last post by HW Mueller Wed Jan 10, 2007 10:22 am
yet another ghost peak question by mlietzow » Fri Jan 05, 2007 1:36 am	2	2331	Last post by mlietzow Wed Jan 10, 2007 2:13 am
alfa bromo-2-chlorophenyl acetonitrile -hplc/gc method by M.Rameshkumar » Tue Jan 09, 2007 6:54 am	1	2216	Last post by chromatographer1 Tue Jan 09, 2007 1:18 pm
SIL-10AXL injecting air by schielj » Tue Dec 05, 2006 9:03 pm	20	6606	Last post by schielj Mon Jan 08, 2007 3:45 pm
hplc method development for 4-hydroxy indanone by Rameshkumar.M » Sun Jan 07, 2007 7:52 am	0	2095	Last post by Rameshkumar.M Sun Jan 07, 2007 7:52 am
Carbocysteine and other cysteine pKa's by todebush » Fri Jan 05, 2007 9:03 pm	0	2542	Last post by todebush Fri Jan 05, 2007 9:03 pm
Reference Standard for Non-pharmacopoeial Substance by syx » Tue Dec 12, 2006 1:30 am	3	2474	Last post by Bruce Hamilton Fri Jan 05, 2007 7:04 pm
[req] Condition for C18 column for Vitamin C Tablets, thanks by kingsemma » Thu Jan 04, 2007 12:37 pm	4	2797	Last post by Bryan Evans Fri Jan 05, 2007 6:31 pm
Robustness by agen » Thu Jan 04, 2007 7:51 pm	3	2447	Last post by Bruce Hamilton Fri Jan 05, 2007 3:09 am
Contamination zirconium versus sapphire pistons by Tony » Thu Jan 04, 2007 2:19 pm	4	3242	Last post by Mark Tracy Thu Jan 04, 2007 10:15 pm
Varian Pro-Star HPLC Experience by rubyfan » Thu Jan 04, 2007 3:44 am	1	2332	Last post by Chris0000 Thu Jan 04, 2007 12:15 pm
gradient elution baseline problem by ana » Wed Jan 03, 2007 9:02 am	6	2936	Last post by scanter Thu Jan 04, 2007 12:06 pm
Can anyone help me.. by NITHYA KALYANI.S. » Thu Dec 28, 2006 8:54 am	6	2856	Last post by NITHYA KALYANI.S. Thu Jan 04, 2007 4:35 am
Caustic /water/organic mix by pseudotexan » Wed Jan 03, 2007 9:33 pm	1	1874	Last post by Mark Tracy Wed Jan 03, 2007 11:49 pm
Optical Alignment by iris.s7one » Tue Jan 02, 2007 11:51 pm	2	2316	Last post by iris.s7one Wed Jan 03, 2007 7:50 pm
vitamin B12 extraction by frez01 » Wed Jan 03, 2007 9:49 am	1	2314	Last post by AA Wed Jan 03, 2007 4:45 pm
How do a lose this ghost peak? by efirth » Mon Dec 18, 2006 9:52 am	9	3171	Last post by efirth Tue Jan 02, 2007 9:01 am
assay of zopiclone and its metabolites(zopiclone-N-oxide) by anilray1155 » Mon Jan 01, 2007 9:36 am	2	2359	Last post by Uwe Neue Mon Jan 01, 2007 7:09 pm
Mystery Noise by Jason Hendricks » Tue Dec 12, 2006 10:08 pm	16	5772	Last post by mdfenko Fri Dec 29, 2006 3:06 pm
amino acid analysis present in mushrooms by scorpiofrall » Tue Dec 12, 2006 4:55 am	3	2559	Last post by Kostas Petritis Wed Dec 27, 2006 7:38 pm
Test Procedure Pre-validation protocol report? by Consumer Products Guy » Wed Dec 13, 2006 5:12 pm	8	3628	Last post by JM Wed Dec 27, 2006 5:08 am
slowly decreasing baseline by John » Wed Dec 13, 2006 9:05 pm	6	3925	Last post by tx Fri Dec 22, 2006 7:30 pm
how do you analyse fecal samples? by aniket » Mon Dec 04, 2006 8:45 am	9	4302	Last post by aniket Fri Dec 22, 2006 6:09 pm
Oxidation on SPE by Mattias » Wed Dec 20, 2006 7:32 am	5	2625	Last post by Mattias Thu Dec 21, 2006 10:29 am
Light Stress/Degradation Study by sdo7575 » Mon Dec 18, 2006 5:00 pm	3	2496	Last post by Karan Thu Dec 21, 2006 6:55 am
Proper use of a column heater by Charles A. Burger » Wed Dec 20, 2006 6:12 pm	10	4004	Last post by Uwe Neue Thu Dec 21, 2006 3:37 am
Waters 2487 Detector by iris.s7one » Thu Dec 14, 2006 9:25 pm	6	3843	Last post by Kasiban Tue Dec 19, 2006 1:57 am
Why Buffers? by bgiles » Thu Dec 14, 2006 7:06 pm	12	4444	Last post by Mark Tracy Mon Dec 18, 2006 7:14 pm
Quat. Pump Issues by Q-Trap This » Thu Dec 14, 2006 10:13 pm	12	4534	Last post by Mark Tracy Mon Dec 18, 2006 6:57 pm
pre-mixed or non-pre-mixed by ym3142 » Fri Dec 15, 2006 5:52 pm	4	2665	Last post by ym3142 Sun Dec 17, 2006 4:50 am
what about related substance test in HPLC? by mfahe » Sat Dec 02, 2006 10:13 pm	3	12513	Last post by Bruce Hamilton Thu Dec 14, 2006 6:51 pm
The history of HPLC by sksrinivas » Wed Dec 13, 2006 1:56 pm	4	3570	Last post by Uwe Neue Thu Dec 14, 2006 6:34 pm
SPE of amoxicillin: fast degradation by bartjoosen » Wed Dec 13, 2006 2:06 pm	8	3945	Last post by Mary Carson Thu Dec 14, 2006 3:13 pm
HPLC with fluorescence detector - opiates problems! by mszulc » Thu Dec 14, 2006 1:44 pm	0	2268	Last post by mszulc Thu Dec 14, 2006 1:44 pm
Reporting of impurities during developmental stage by Sunjay » Wed Nov 29, 2006 7:14 am	6	4631	Last post by Yorkie31 Thu Dec 14, 2006 1:27 pm
Are Phenyl columns a difficult phase to deal with? by Charles A. Burger » Fri Dec 08, 2006 3:41 pm	7	3892	Last post by WK Thu Dec 14, 2006 11:59 am
Chromatographic Separation Techniques by Karan » Wed Dec 13, 2006 12:03 pm	0	2458	Last post by Karan Wed Dec 13, 2006 12:03 pm
NIR Spectroscopy by Liza » Wed Dec 13, 2006 2:00 am	1	2117	Last post by bartjoosen Wed Dec 13, 2006 9:19 am
IP reagents + buffers by Philip » Wed Nov 22, 2006 6:22 am	5	2919	Last post by ym3142 Wed Dec 13, 2006 5:24 am
Reference books by mojo » Tue Dec 12, 2006 10:45 am	0	3012	Last post by mojo Tue Dec 12, 2006 10:45 am
IP REAGENTS by Philip » Fri Dec 08, 2006 4:27 am	9	3589	Last post by ym3142 Tue Dec 12, 2006 5:04 am

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