Liquid Chromatography

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Ion Chromatography Discussions about IC and related topics Topics: 398	398	1498	Last post Re: Carbonates by liko44 Sat Oct 18, 2025 5:45 am
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: 119	119	467	Last post Re: choice of GPC software by pigsy1983 Tue Jul 08, 2025 4:23 pm

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11906 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	62724	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Method Validation Linearity by ashfaq » Sun Apr 21, 2013 10:37 pm	3	3120	Last post by lmh Mon Apr 22, 2013 9:06 am
assay by titrimetry issue by aniket1706 » Mon Apr 22, 2013 7:03 am	1	6524	Last post by Markus Laeubli, Metrohm Mon Apr 29, 2013 2:25 pm
UPLC With Empower 3 System Config/Node Initialization Issues by itsbiodiversity » Wed Apr 17, 2013 2:01 pm	4	4175	Last post by vofelyp Sun Apr 21, 2013 5:23 pm
Life span of an HPLC 1100 by thohry » Thu Oct 22, 2009 2:59 am	15	9465	Last post by uzman Sat Apr 20, 2013 3:54 pm
Phenyl column by syk10148 » Fri Apr 19, 2013 8:49 am	6	4162	Last post by juddc Fri Apr 19, 2013 8:39 pm
If you had $10k to spend on an HPLC... by dbrouwer » Fri Apr 19, 2013 12:37 am	6	2614	Last post by juddc Fri Apr 19, 2013 8:25 pm
Electrochemical detector: Performance qualification by aceto_81 » Tue Apr 16, 2013 8:41 am	1	1840	Last post by Markus Laeubli, Metrohm Fri Apr 19, 2013 9:53 am
Purchasing an HPLC by wefunk » Thu Apr 18, 2013 8:43 pm	0	1925	Last post by wefunk Thu Apr 18, 2013 8:43 pm
pressure drop during the run by xiuminchen » Thu Apr 04, 2013 1:41 am	9	3308	Last post by xiuminchen Thu Apr 18, 2013 5:33 pm
Use of Sulfuric Acid as Volatile Mobile Phase Additive by adam » Wed Apr 17, 2013 4:33 pm	4	3678	Last post by Vlad Orlovsky Thu Apr 18, 2013 5:32 pm
High Flow Hydrocarbon Trap for LC (P/N 22466 Restek) by Majestic » Thu Apr 18, 2013 3:15 pm	0	2229	Last post by Majestic Thu Apr 18, 2013 3:15 pm
PAH analysis Method 610 with Diode Array Detector? by sllimbri65 » Thu Apr 18, 2013 2:18 am	0	2230	Last post by sllimbri65 Thu Apr 18, 2013 2:18 am
Trouble with Active Inlet Valve on Agilent 1100? by boydjg » Wed Oct 06, 2010 6:58 pm	4	8858	Last post by Rachelle Thu Apr 18, 2013 12:18 am
symmetry factor agilent chemstation vs tailing factor usp by tweg » Wed Nov 19, 2008 5:57 pm	3	4135	Last post by kabil Wed Apr 17, 2013 11:08 pm
help me find meaning to my job. by gerapas » Fri Apr 05, 2013 10:21 pm	16	5175	Last post by juddc Wed Apr 17, 2013 9:38 pm
High pH applications on silica-based columns by DJ » Fri Apr 12, 2013 10:13 pm	6	3816	Last post by Vlad Orlovsky Wed Apr 17, 2013 2:29 pm
calibrators - uncertainty by jdelmonte » Tue Apr 16, 2013 2:50 pm	1	2281	Last post by HPLCaddict Tue Apr 16, 2013 9:10 pm
Mixed mode columns in gradient elution by VEBA » Mon Apr 15, 2013 9:13 am	4	3474	Last post by Vlad Orlovsky Tue Apr 16, 2013 1:10 pm
Low Signal on Low Pressure LC units by Koopa » Mon Apr 15, 2013 5:19 pm	2	4309	Last post by Gerhard Kratz Tue Apr 16, 2013 12:13 pm
Chemstation Reporting question? by ritfor » Mon Apr 15, 2013 3:09 pm	3	3471	Last post by ritfor Tue Apr 16, 2013 1:39 pm
gradient for dissolution by gerapas » Sun Apr 14, 2013 9:04 pm	2	2665	Last post by danko Mon Apr 15, 2013 8:20 am
metering home failed by gerapas » Sun Apr 14, 2013 9:10 pm	0	2824	Last post by gerapas Sun Apr 14, 2013 9:10 pm
Ion Pairing Tetrabutylammonium Hydroxide by Jing_Fan » Thu Apr 04, 2013 12:08 am	5	3529	Last post by gerapas Sun Apr 14, 2013 8:04 pm
LC analysis help!!! by HPLCman » Fri Apr 12, 2013 2:47 am	5	2558	Last post by HPLCman Sun Apr 14, 2013 1:41 pm
Dried column by Camisotro » Tue Mar 26, 2013 5:36 pm	8	4576	Last post by Camisotro Sat Apr 13, 2013 12:10 am
prednisolone tabs by gerapas » Tue Apr 09, 2013 9:17 pm	6	2352	Last post by danko Fri Apr 12, 2013 10:41 pm
Column suggestions for chiral compounds containing 2 primary by Mike H. » Thu Apr 11, 2013 7:39 pm	3	2076	Last post by sepscientologist Fri Apr 12, 2013 9:03 pm
melarsomine (cymelarsan, unstable in water) LC method by jli1 » Fri Mar 22, 2013 1:17 pm	8	4385	Last post by Vlad Orlovsky Fri Apr 12, 2013 7:57 pm
Massive pressure drop during injection on Waters alliance! by jtoshea2005 » Fri Apr 12, 2013 6:34 pm	0	2429	Last post by jtoshea2005 Fri Apr 12, 2013 6:34 pm
Does anyone know how much Shimadzu's educational discount is by me2279 » Wed Apr 10, 2013 1:04 am	2	1985	Last post by CE Instruments Fri Apr 12, 2013 2:18 pm
degradation of phosphites on RP-HPLC columns by Brian1706 » Thu Apr 11, 2013 4:49 pm	5	2679	Last post by danko Fri Apr 12, 2013 12:48 pm
Evaluate column variability as part of method development? by DanielWH » Wed Apr 10, 2013 4:21 am	13	4005	Last post by DanielWH Fri Apr 12, 2013 12:29 am
Intra day precision by montana » Wed Apr 10, 2013 6:43 pm	3	6604	Last post by montana Thu Apr 11, 2013 3:59 pm
Forced degradation studies by michaelcarolus » Mon Apr 02, 2012 2:03 pm	8	3361	Last post by michaelcarolus Thu Apr 11, 2013 6:12 am
Chemstation training course by ritfor » Wed Apr 10, 2013 11:19 am	1	2886	Last post by Coffo Thu Apr 11, 2013 2:59 pm
Modification of integration paramters in QCC Lab by GT » Wed Apr 03, 2013 7:58 am	13	3749	Last post by paul_b Tue Apr 09, 2013 4:05 pm
volatile buffers for ELSD by Brian1706 » Mon Apr 08, 2013 12:16 am	2	3044	Last post by paul_b Tue Apr 09, 2013 3:47 pm
Absorption coefficient by smartin » Mon Apr 08, 2013 9:49 am	4	2232	Last post by smartin Mon Apr 08, 2013 2:56 pm
PDA DETECTOR CLARIFICATION by fareedtayyeb » Tue Apr 02, 2013 6:59 pm	4	2036	Last post by HPLCaddict Mon Apr 08, 2013 9:10 am
Faster elution in np chiral chromatography? by TessLa » Sat Apr 06, 2013 6:41 pm	1	1913	Last post by tom jupille Mon Apr 08, 2013 6:03 am
Mobile phase leakage through needle in autosampler Shimadzu by tedjoc » Thu Apr 04, 2013 9:22 pm	5	5885	Last post by Camisotro Fri Apr 05, 2013 8:59 pm
How to calculate S/N ratio? by mk_3249 » Fri Apr 05, 2013 2:44 pm	3	2561	Last post by dblux_ Fri Apr 05, 2013 8:45 pm
HFBA Solution Shelf Life by thiazole » Mon Apr 01, 2013 3:32 pm	4	2073	Last post by DJ Fri Apr 05, 2013 7:53 pm
how to improve low level spiked recovery-urgent! by darasc0211 » Fri Apr 05, 2013 10:46 am	1	1825	Last post by danko Fri Apr 05, 2013 11:41 am
post column reaction using mixing tee by vmocko » Thu Mar 28, 2013 7:19 pm	4	2080	Last post by vmocko Thu Apr 04, 2013 5:52 pm
Ion pairing method for basic compounds for MS by Mike H. » Wed Feb 27, 2013 2:45 pm	12	4359	Last post by Klaus I. Thu Apr 04, 2013 4:48 pm
Problem with Online plot vs printed spectra with Chemstation by clwaldru » Thu Apr 04, 2013 2:34 pm	4	3217	Last post by clwaldru Wed Apr 17, 2013 2:41 pm
Agilent G1315 DAD Noise by mbradburn » Mon Apr 16, 2012 1:42 pm	7	3968	Last post by tsoukalas1 Thu Apr 04, 2013 2:22 pm
chromsystem_Characteristics of a column by montana » Wed Apr 03, 2013 9:14 pm	1	1631	Last post by danko Thu Apr 04, 2013 7:57 am
Modifier Concentrations by thiazole » Tue Mar 26, 2013 5:12 pm	2	1743	Last post by djacqo Thu Apr 04, 2013 2:38 am

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