Liquid Chromatography

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11915 topics

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Topics	Replies	Views	Last post
VIT C problem by ydna6969 » Wed Feb 11, 2015 2:00 pm	2	2619	Last post by Andy Alpert Wed Feb 11, 2015 2:55 pm
pressure loss and retention loss by jiangds06 » Wed Jan 21, 2015 6:04 pm	6	3674	Last post by jiangds06 Wed Feb 11, 2015 1:49 pm
acetone as mobile phase by IUpuppy » Thu Feb 05, 2015 9:25 pm	6	5904	Last post by rwang Wed Feb 11, 2015 1:28 am
Higher Peak Area by Miniteh » Sun Jan 04, 2015 5:17 pm	14	6575	Last post by mattmullaney Tue Feb 10, 2015 10:18 am
Determination of Relative Response Factor by Robotjock » Fri Feb 06, 2015 5:41 pm	4	6221	Last post by HPLCaddict Mon Feb 09, 2015 1:49 pm
what is solution for instrument failure by trisha » Sat Jan 24, 2015 3:01 am	3	8286	Last post by danko Mon Feb 09, 2015 10:06 am
gamma aminobutyric acid (GABA) tailing peak or contamination by Jen » Fri Feb 06, 2015 10:30 pm	4	4648	Last post by Yazawa Sun Mar 29, 2015 10:14 am
Extraction of Vit D from oil for RP analysis... by LC_addict » Tue Jan 20, 2015 2:58 pm	7	7747	Last post by Don Shelly Mon Feb 23, 2015 10:36 pm
UPLC middle peaks merging together by jct476 » Wed Feb 04, 2015 3:44 pm	1	2976	Last post by carlo.annaratone Thu Feb 05, 2015 1:02 pm
Wandering baseline in buffered MeOH pH 10.7 UV 254 by Calendula » Thu Jan 29, 2015 8:32 pm	4	3513	Last post by danko Thu Feb 05, 2015 11:45 am
variable peak area in replicate injections by debby hsu » Wed Feb 04, 2015 8:30 am	2	2922	Last post by danko Thu Feb 05, 2015 11:03 am
How to find the sample load of a column (Solid Core) by Mike H. » Wed Feb 04, 2015 2:21 pm	1	2226	Last post by danko Thu Feb 05, 2015 10:49 am
Baseline HPLC Agilent by Blakey » Wed Feb 04, 2015 4:36 pm	1	2390	Last post by dhobbs Wed Feb 04, 2015 4:56 pm
Validation - API supplier changes by carlos.rsantos » Wed Feb 04, 2015 11:03 am	1	2717	Last post by tristanewalters Wed Feb 04, 2015 3:58 pm
Suggestions on what sort of HPLC instrument to buy by dlntx9 » Mon Jan 26, 2015 1:30 am	3	2899	Last post by DJ Wed Feb 04, 2015 6:51 am
HPLC unstable baseline by Maulwurf » Tue Jan 27, 2015 6:16 pm	6	4931	Last post by chrsdrake Tue Feb 03, 2015 4:13 pm
USP columns by Besma2 » Sat Jan 31, 2015 4:53 pm	3	2810	Last post by Besma2 Mon Feb 02, 2015 11:21 am
lamp replacement DAD by Besma2 » Sun Feb 01, 2015 12:01 pm	1	2529	Last post by KM-USA Sun Feb 01, 2015 9:15 pm
Autosampler arm releases samples prior to needle seat by Blakey » Thu Jan 29, 2015 5:48 pm	2	3296	Last post by kubowicz.tomasz Fri Jan 30, 2015 8:30 am
cleaning validation query by ydna6969 » Thu Jan 29, 2015 12:15 pm	0	2966	Last post by ydna6969 Thu Jan 29, 2015 12:15 pm
Low Pressure vs High Pressure Mixing HPLC's by Jimi » Thu Jan 22, 2015 1:19 am	10	13680	Last post by Klaus I. Wed Jan 28, 2015 6:17 am
which lc system is the best system in terms of quan work by jiangds06 » Mon Jan 26, 2015 5:54 pm	4	3188	Last post by skunked_once Tue Jan 27, 2015 2:40 pm
UPLC versus HPLC by jayroseville58 » Sun Jan 25, 2015 7:38 am	1	2918	Last post by HPLCaddict Tue Jan 27, 2015 8:37 am
HPLC Agilent 1260 by Besma2 » Mon Jan 26, 2015 9:20 pm	1	3091	Last post by pancaker Mon Jan 26, 2015 9:47 pm
PROTEIN--AAA -HPLC-UV,OR LCMS,LCMSMS by wader » Wed Dec 17, 2014 1:38 am	1	2874	Last post by yazmer Sun Jan 25, 2015 8:08 am
Planned maintenance for Shimadzu LC10 ADvp by labstephan » Tue Dec 09, 2014 8:30 pm	3	3282	Last post by yazmer Sun Jan 25, 2015 7:34 am
Need advice on uHPLC pump purchase by BHolmes » Thu Jan 22, 2015 4:25 pm	1	2756	Last post by Klaus I. Sat Jan 24, 2015 3:56 am
accepting a batch standards and QC's after preparation by hombie » Tue Jan 20, 2015 1:10 pm	2	2780	Last post by hombie Fri Jan 23, 2015 3:18 pm
Impendance - why N^2? by KonstantinSychev » Tue Jan 20, 2015 12:07 pm	2	2751	Last post by mattmullaney Thu Jan 22, 2015 12:22 pm
cleaning validation by ydna6969 » Thu Jan 15, 2015 1:50 pm	4	4253	Last post by Klaus I. Wed Jan 21, 2015 5:00 pm
UV detection by jiangds06 » Fri Jan 16, 2015 3:39 pm	4	3423	Last post by jiangds06 Wed Jan 21, 2015 4:59 pm
Empower Noise/Drift calculation for Shimadzu UV detector by JonathanCalleja » Wed Jan 21, 2015 9:05 am	1	4598	Last post by hombie Wed Jan 21, 2015 12:35 pm
PhD Candidate, Mentor left, pressure issues by cafeguy » Wed Jan 14, 2015 3:31 pm	12	5042	Last post by cafeguy Tue Jan 20, 2015 7:34 pm
anyone can recommend any review on LH-20 by jiang295 » Thu Feb 18, 2010 4:22 am	16	7974	Last post by carlo.annaratone Mon Jan 19, 2015 10:02 am
max plot vs. fixed wavelength for quantitation by blockislandhead » Thu Jan 15, 2015 5:56 pm	3	6100	Last post by lmh Fri Jan 16, 2015 10:59 am
ICS-3000 Ion Chromatography bubbles by Amaya » Thu Jan 15, 2015 7:40 am	6	8276	Last post by mattmullaney Fri Jan 16, 2015 2:16 am
transfering method from binary to quaternary LC by shadow » Thu Jan 08, 2015 3:32 am	9	5778	Last post by shadow Thu Jan 15, 2015 11:33 pm
WCX Early Eluting Mystery Peaks by PLCMON » Fri Jan 09, 2015 11:56 pm	3	6015	Last post by PLCMON Wed Jan 14, 2015 4:12 pm
Corona CAD and glycols by H2Oh » Tue Dec 09, 2014 3:49 pm	6	5510	Last post by H2Oh Wed Jan 14, 2015 2:55 pm
C18 VS RP18 by ydna6969 » Wed Jan 14, 2015 10:20 am	4	21719	Last post by Gerhard Kratz Wed Jan 14, 2015 12:31 pm
peak area consistently decrease by jiangds06 » Thu Jan 08, 2015 4:56 pm	3	3556	Last post by jiangds06 Mon Jan 12, 2015 6:37 pm
Difference between Chemstation and EZChrom, better choice by Tchavarat » Mon Jan 12, 2015 7:35 am	5	6888	Last post by varossf Thu Feb 05, 2015 7:53 am
LOQ of impurities with same RRF by jayroseville58 » Thu Jan 08, 2015 4:39 am	2	3204	Last post by jayroseville58 Sun Jan 11, 2015 1:00 pm
Latest USP<621> guidelines re method adjustment HPLC / UHPLC by Rob » Fri Jan 09, 2015 12:11 pm	2	5612	Last post by KM-USA Fri Jan 09, 2015 3:32 pm
hplc area variation by jiangds06 » Tue Dec 30, 2014 4:17 pm	11	10557	Last post by jiangds06 Thu Jan 08, 2015 4:59 pm
Agilent 1100 PV by Jamie_Pharma » Wed Dec 17, 2014 9:44 pm	2	3729	Last post by Duck Duck Goose 2 Tue Jan 06, 2015 8:39 pm
organic acids by ECD detection by chandresh.soni » Mon Jan 05, 2015 7:27 am	21	8944	Last post by chandresh.soni Tue Jan 27, 2015 10:37 am
polymer Lab Model PL-EMD 960 ELSD detector by fareedtayyeb » Sat Sep 07, 2013 9:47 am	1	4886	Last post by kessler Tue Dec 30, 2014 3:44 pm
pH and Capacity Factor by walker8476 » Tue Dec 30, 2014 2:19 am	5	8751	Last post by walker8476 Tue Dec 30, 2014 7:41 am
Making Waters HPLC-ECD (model 464) work! by pkharel » Sun Dec 28, 2014 11:06 pm	0	3644	Last post by pkharel Sun Dec 28, 2014 11:06 pm

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