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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11917 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	85210	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
MS compatibility of additives by LCFlo » Tue Jan 25, 2011 7:29 pm	2	1701	Last post by HPLCCONSULT Wed Jan 26, 2011 2:00 pm
God! The column pressure drift from start to end! by penny » Sun Jan 16, 2011 2:25 pm	12	2158	Last post by daniela_nedelcu Wed Jan 26, 2011 9:26 am
Brand New Waters 2695 problems by cody84 » Tue Jan 25, 2011 2:21 pm	2	1757	Last post by scottythree Wed Jan 26, 2011 8:53 am
2D IC by yaakov » Mon Jan 17, 2011 9:25 am	3	1755	Last post by tom jupille Tue Jan 25, 2011 10:36 pm
How to adjust the flow rate by afzal81 » Thu Jan 20, 2011 6:28 pm	7	3536	Last post by Peter Apps Tue Jan 25, 2011 8:02 am
Help with UV "noise" issues in gradient by peptideguy » Sat Jan 22, 2011 2:03 am	8	4024	Last post by peptideguy Tue Jan 25, 2011 2:54 am
what is this phenomenon called by moonchips » Mon Jan 24, 2011 8:08 pm	1	1602	Last post by tom jupille Mon Jan 24, 2011 8:44 pm
Splitting Peak for Pyridoxal Phosphate by msbarnes » Mon Jan 24, 2011 5:04 pm	1	1683	Last post by tom jupille Mon Jan 24, 2011 8:38 pm
Peak area of galacturonic acid by panagiotc » Tue May 18, 2010 2:21 pm	3	2139	Last post by kalg1975 Mon Jan 24, 2011 7:44 pm
how intensive shall I go for early phase method validation by darasc0211 » Sat Jan 22, 2011 4:45 am	1	1578	Last post by DR Mon Jan 24, 2011 1:33 pm
please help! recover contaminated column... by koifreak » Fri Jan 14, 2011 10:09 am	9	2059	Last post by tom jupille Sun Jan 23, 2011 11:33 pm
UHPLC columns- companies by spr123 » Fri Jan 21, 2011 4:03 pm	3	1972	Last post by JGK Fri Jan 21, 2011 7:21 pm
simple questions about TLC by SKMNUK » Tue Jan 18, 2011 11:28 am	7	2649	Last post by HW Mueller Fri Jan 21, 2011 4:41 pm
An LOQ question during early phase DP purity mth development by darasc0211 » Sat Jan 15, 2011 6:36 am	8	2498	Last post by krickos Fri Jan 21, 2011 6:59 am
ATP (adenosine triphosphate detection by HPLC by mk12 » Tue Jan 18, 2011 10:29 pm	5	3355	Last post by gtvofigo Thu Jan 20, 2011 11:19 pm
Major Inconsistency between identical standards run on HPLC by unclebenjaminjones » Tue Jan 11, 2011 5:55 pm	11	2409	Last post by bisnettrj2 Thu Jan 20, 2011 5:10 pm
Problem in eluting the sample with Amide-80 column in NP by sboopathi » Mon Jan 17, 2011 5:40 pm	14	2621	Last post by HW Mueller Thu Jan 20, 2011 9:22 am
Validation of a non native RPC method by miro2009 » Thu Jan 13, 2011 6:13 pm	1	1534	Last post by freemab222 Thu Jan 20, 2011 7:53 am
ELSD sensitivity by Bangkok34 » Mon Jan 17, 2011 7:59 am	4	2551	Last post by Bangkok34 Thu Jan 20, 2011 7:10 am
Tetrabutylammonium hydroxide(TBAH) interference by colautti » Thu Jan 13, 2011 7:45 am	4	3284	Last post by colautti Thu Jan 20, 2011 4:29 am
using itachi hplc system without the ezchrom by dmond » Wed Jan 19, 2011 2:34 pm	2	2349	Last post by John Lim Thu Jan 20, 2011 3:56 am
deuterium lamp intensities by grumbledook » Tue Jan 18, 2011 12:33 pm	5	3257	Last post by HPLCCONSULT Wed Jan 19, 2011 5:50 pm
Tailing high and increases with injection volume by rgamage » Wed Jan 19, 2011 8:45 am	1	2074	Last post by tom jupille Wed Jan 19, 2011 4:01 pm
continuous peaks with waters 2487 detector by pri6886 » Wed Jan 19, 2011 5:14 am	2	1953	Last post by DR Wed Jan 19, 2011 3:25 pm
Ion pair chromatogarphy by Rowena » Sat Jan 08, 2011 3:53 am	9	4179	Last post by carls Tue Jan 18, 2011 2:53 pm
determination t0 in acclaim trinity p1 by vinhvinh1979g » Mon Jan 17, 2011 3:36 pm	3	1982	Last post by HW Mueller Tue Jan 18, 2011 9:44 am
Simultaneous quantification of vitamin A,E and D by Lorespain » Tue May 25, 2010 5:36 pm	5	2164	Last post by krisradh1432 Tue Jan 18, 2011 2:51 am
CSP for amphetamine & methamphetamine by idle » Tue Jan 18, 2011 1:13 am	0	1559	Last post by idle Tue Jan 18, 2011 1:13 am
High cell current by smartin » Fri Jan 14, 2011 10:51 am	3	1763	Last post by smartin Mon Jan 17, 2011 4:23 pm
Equilibration/resolution problems with new Acquity columns by Nicki-Nitro » Fri Oct 08, 2010 12:04 pm	23	7643	Last post by Nicki-Nitro Mon Jan 17, 2011 11:56 am
tropine content by chromeuser » Sun Nov 29, 2009 2:41 pm	5	2803	Last post by HW Mueller Mon Jan 17, 2011 9:49 am
variation in response of the analyte and internal standard by aydonat » Thu Jan 13, 2011 8:25 am	4	2433	Last post by HW Mueller Mon Jan 17, 2011 9:40 am
shifting retention times by lienl » Thu Jan 13, 2011 9:48 am	2	2207	Last post by lienl Mon Jan 17, 2011 7:43 am
Right way of making manual injection by loverman » Fri Jan 14, 2011 10:10 pm	4	3541	Last post by loverman Sun Jan 16, 2011 11:57 am
have a problem with acclaim trinity p1 by vinhvinh1979g » Sat Jan 15, 2011 6:05 pm	2	2732	Last post by XL Sun Jan 16, 2011 7:10 am
0.2 Micron precolumn filter clogs w/ rotor switching by HPLCEngineer » Fri Jan 14, 2011 5:27 pm	6	2719	Last post by HW Mueller Sat Jan 15, 2011 4:55 pm
the tropine test , HPLCESLD by thenew2011 » Sat Jan 15, 2011 7:46 am	0	2038	Last post by thenew2011 Sat Jan 15, 2011 7:46 am
My expired Dionex Columns any good? by lgchrom » Wed May 12, 2010 3:34 pm	6	3812	Last post by Bruce Hamilton Fri Jan 14, 2011 10:58 pm
Weighting with 1/x^WE, 1/y^WE or 1/s^WE by dresdentl » Sun Dec 26, 2010 6:45 pm	6	3467	Last post by lmh Fri Jan 14, 2011 9:44 am
the most important with me by vinhvinh1979g » Fri Jan 14, 2011 2:48 am	1	1837	Last post by tom jupille Fri Jan 14, 2011 4:43 am
Mobile Phase Recyclers by Paladin » Thu Oct 30, 2008 8:35 pm	14	5024	Last post by greenlab Thu Jan 13, 2011 4:01 pm
HPLC 1090 HBIP card by faris » Thu Jan 13, 2011 2:46 pm	1	1766	Last post by Consumer Products Guy Thu Jan 13, 2011 3:44 pm
LOD based on calibration curve by Edu » Mon Jan 10, 2011 2:08 am	7	6441	Last post by Edu Wed Jan 12, 2011 10:45 pm
magnisum sulphate in my sample by mk12 » Tue Jan 11, 2011 8:04 pm	2	1952	Last post by mk12 Wed Jan 12, 2011 6:58 pm
ATP (adenosine triphosphate detection by HPLC by mk12 » Tue Jan 11, 2011 6:41 pm	3	2395	Last post by Bintang Wed Jan 12, 2011 8:05 am
Analytical Method Transfer Acceptance Criteria by Kimico » Wed Jan 12, 2011 12:39 am	0	1840	Last post by Kimico Wed Jan 12, 2011 12:39 am
Validation of RPC impurity method in terms of peak % by miro2009 » Tue Jan 11, 2011 10:15 am	1	1536	Last post by tom jupille Tue Jan 11, 2011 7:22 pm
Bad reproducility by afzal81 » Sat Jan 08, 2011 3:42 pm	3	1742	Last post by skunked_once Tue Jan 11, 2011 7:05 pm
Rotor seal: vespel vs tefzel by usuchrom » Tue Jan 11, 2011 4:29 pm	1	2792	Last post by Consumer Products Guy Tue Jan 11, 2011 4:50 pm
HPLC Retention Time by Farzana Baksh » Sun Jul 18, 2010 7:29 pm	10	18278	Last post by a4analyst Tue Jan 11, 2011 4:29 pm

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