Liquid Chromatography

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	85439	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

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I need an Agilent/HP G1362A Refractive Index Detector by AIM » Tue Oct 27, 2015 9:31 pm	1	2893	Last post by Alfred88 Thu Nov 12, 2015 3:39 am
heparin and LMWH problem by Austin » Wed Nov 04, 2015 3:26 pm	1	2825	Last post by Alfred88 Thu Nov 12, 2015 3:31 am
Plunger seal vs. Rinse seal by sepr8tr » Wed Oct 28, 2015 3:34 pm	2	3103	Last post by Alfred88 Thu Nov 12, 2015 3:23 am
peak broadening of a sulfoxide by Toms » Wed Nov 11, 2015 2:58 pm	0	5147	Last post by Toms Wed Nov 11, 2015 2:58 pm
Calculation of LOD when there is caryover in the blanks by csousa » Wed Nov 11, 2015 12:03 pm	1	2917	Last post by Peter Apps Wed Nov 11, 2015 12:23 pm
Forced degradation acc. to new Brazilian requirements by Mattias » Mon Nov 09, 2015 11:56 am	5	5071	Last post by Fernando Wed Nov 11, 2015 10:37 am
UV absorbance maximum is wrong by xsialicacidx » Mon Nov 09, 2015 9:39 pm	4	4010	Last post by Hollow Tue Nov 10, 2015 12:02 pm
Reduced Std peak area when artifact peak observed. by Robotjock » Mon Nov 09, 2015 3:17 pm	0	5437	Last post by Robotjock Mon Nov 09, 2015 3:17 pm
Trouble separating Lipids by kanryu » Wed Oct 21, 2015 1:01 pm	7	3810	Last post by SciMania Sat Nov 07, 2015 2:09 am
Poor UV lamp Signal on Thermo UV6000 by DeniseHeinz » Fri Oct 25, 2013 9:31 pm	6	3813	Last post by Mattias Fri Nov 06, 2015 12:49 pm
Trap column for FSH protein by Mattias » Thu Nov 05, 2015 1:21 pm	0	5435	Last post by Mattias Thu Nov 05, 2015 1:21 pm
Mesna EP 7.0 Monograph by fatimamereles » Wed Nov 04, 2015 3:13 pm	0	4387	Last post by fatimamereles Wed Nov 04, 2015 3:13 pm
Bad sensitivity in low concentrations (HPLC FLD) by wistar » Mon Nov 02, 2015 9:30 pm	3	3228	Last post by Peter Apps Tue Nov 03, 2015 5:41 pm
retention time drift by gerapas » Fri Oct 23, 2015 8:25 pm	15	6210	Last post by carlo.annaratone Tue Nov 03, 2015 11:19 am
Dead volume peaks - caused by environmental contamination? by nicole0907 » Mon Nov 02, 2015 6:38 pm	1	3341	Last post by tom jupille Mon Nov 02, 2015 10:34 pm
Waters 2487 Detector Filter Initialization Error by fareedtayyeb » Sat Oct 31, 2015 11:55 am	6	7949	Last post by jbeadnell Mon Nov 02, 2015 8:13 pm
Webinar! Transfer of USP Methods to Monolithic Columns by CF - David Hills » Mon Nov 02, 2015 12:33 pm	0	3946	Last post by CF - David Hills Mon Nov 02, 2015 12:33 pm
Sawtooth gradient by kristinj0301 » Tue Oct 27, 2015 2:47 am	3	4518	Last post by lmh Fri Oct 30, 2015 9:59 pm
Repeatability problems by Virolarufula » Tue Oct 27, 2015 5:12 pm	2	3256	Last post by Virolarufula Wed Oct 28, 2015 11:43 am
Waters 490E Detector by kebarej » Mon Oct 19, 2015 7:17 pm	3	4015	Last post by tom jupille Tue Oct 27, 2015 7:07 pm
Polymer-based SEC columns by HPLC_chainik » Fri Oct 23, 2015 7:16 pm	3	8677	Last post by HPLC_chainik Tue Oct 27, 2015 5:27 pm
Determination of relative response factor by Robotjock » Sat Oct 24, 2015 1:23 am	1	3842	Last post by tom jupille Mon Oct 26, 2015 12:13 am
Dr. Yoshio Kato passed away by Gerhard Kratz » Sat Aug 29, 2015 4:08 pm	1	4051	Last post by rick1112 Sat Oct 24, 2015 11:42 am
Fundamentals of HPLC by tom jupille » Fri Oct 23, 2015 9:55 pm	0	4082	Last post by tom jupille Fri Oct 23, 2015 9:55 pm
.ch files from agilent chemstation to openchrom by Aranel » Thu Oct 22, 2015 6:25 pm	3	6399	Last post by eselmeister Tue Aug 02, 2016 8:53 pm
Use of TFA in mobile phase for RI detector by pmusmade » Wed May 13, 2015 9:34 am	3	3823	Last post by bdhedhy19 Fri Oct 23, 2015 12:07 am
Softwear Validation by Shahruz » Thu Oct 22, 2015 4:29 pm	2	3310	Last post by bundy5555 Mon Oct 26, 2015 2:11 am
Water H Class Acquity Plate recognition issues by paddypower » Thu Oct 22, 2015 4:43 pm	0	3904	Last post by paddypower Thu Oct 22, 2015 4:43 pm
Dip in HPLC-ECD chromatogram by artsjeroen » Thu Oct 22, 2015 8:51 am	0	3587	Last post by artsjeroen Thu Oct 22, 2015 8:51 am
HILIC particle: where can I find? by Humberto » Wed Oct 21, 2015 11:35 am	4	3207	Last post by Humberto Wed Oct 21, 2015 3:16 pm
Negative baseline -105 mAU and cut peaks by Aziza_Mirz » Wed Oct 21, 2015 9:36 am	0	3853	Last post by Aziza_Mirz Wed Oct 21, 2015 9:36 am
Retention time variability according to USP by dimi » Sun Oct 18, 2015 9:26 am	1	8504	Last post by Consumer Products Guy Tue Oct 20, 2015 1:48 pm
trimethylamine and other tertiary amines by HPLC-UV? by eg@aaclab » Thu Oct 22, 2009 10:32 pm	6	7080	Last post by suman singh27 Tue Oct 20, 2015 1:30 am
DAD Warm Up by czeck411 » Fri Oct 16, 2015 2:34 pm	2	3452	Last post by kubowicz.tomasz Mon Oct 19, 2015 6:07 am
Overpressure Waters 2777C Sample Manager by Lou68 » Fri Oct 16, 2015 7:14 am	1	3698	Last post by tom jupille Fri Oct 16, 2015 12:18 pm
Setting up a Rainin HPLC system by gradyb » Thu Oct 15, 2015 11:31 pm	9	4748	Last post by Chris0000 Wed Oct 28, 2015 6:16 am
Waters 2695 stops in the middle of the run by ninatonon » Thu Oct 15, 2015 5:49 pm	6	4621	Last post by jbeadnell Mon Nov 02, 2015 8:05 pm
cdetermination of LOQ from Linearity by ydna6969 » Tue Oct 13, 2015 11:39 am	9	5102	Last post by lmh Thu Oct 15, 2015 4:28 pm
Old Thermo HPLC by emmet » Tue Feb 25, 2014 2:02 pm	31	14491	Last post by wally Thu Oct 15, 2015 9:47 am
Learn more about monolithic silica columns by CF - David Hills » Mon Jun 15, 2015 2:06 pm	1	6625	Last post by Caroline91 Thu Oct 15, 2015 9:38 am
Xcalibur 2.0SR2, SN4000, UV1000 setup question by wally » Wed Oct 14, 2015 10:00 am	0	4959	Last post by wally Wed Oct 14, 2015 10:00 am
Flowthrough mode chromatography by happy2talk » Tue Oct 13, 2015 2:18 pm	0	6787	Last post by happy2talk Tue Oct 13, 2015 2:18 pm
Help: seperation problems on some lipids by HPLC by zhzhengyuan » Tue Mar 03, 2009 7:55 am	11	7315	Last post by kanryu Tue Oct 13, 2015 11:26 am
Online high base by josefina19 » Thu Oct 08, 2015 11:00 pm	4	4078	Last post by kubowicz.tomasz Tue Oct 13, 2015 6:39 am
HPLC collagenae detection by Sruthi » Thu Oct 08, 2015 8:26 am	4	3905	Last post by susanrey Mon Oct 12, 2015 9:54 am
What is Potassium hexafluorophosphate used for in LC? by MestizoJoe » Fri Oct 09, 2015 3:45 pm	1	3682	Last post by Andy Alpert Fri Oct 09, 2015 4:23 pm
Sensitivity in UHPLC vs Classical HPLC by Jimi » Tue Oct 06, 2015 2:53 am	3	4478	Last post by Jimi Wed Oct 07, 2015 4:49 pm
EDTA in mobilephase by eb3 » Tue Oct 06, 2015 12:34 pm	2	3104	Last post by eb3 Tue Oct 06, 2015 6:39 pm
Trouble resolving isomers by PercyG » Fri Oct 02, 2015 3:21 pm	3	3547	Last post by lmh Tue Oct 06, 2015 4:37 pm
how to check a second hand HPLC is refurbished or not by jiangds06 » Thu Oct 01, 2015 1:54 pm	4	52827	Last post by lmh Tue Oct 06, 2015 4:25 pm

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