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	83615	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
repairing Agilent G1379B degasser by Baffled Chromatographer » Thu Jul 30, 2009 2:37 pm	2	2357	Last post by Baffled Chromatographer Thu Jul 30, 2009 10:04 pm
Sample trapped in loop??? by Baffled Chromatographer » Tue Jul 28, 2009 11:11 pm	2	1860	Last post by tom jupille Thu Jul 30, 2009 6:13 pm
Cleaning Lipid Contamination with Organic Solvents (HPLC) by melcron » Tue Jul 28, 2009 11:04 pm	2	2220	Last post by tom jupille Thu Jul 30, 2009 6:10 pm
Journal impact factor by shahis77 » Mon Jul 27, 2009 9:09 pm	9	4759	Last post by shahis77 Thu Jul 30, 2009 2:47 pm
impurities and rrf by martinamarie » Sat Jun 13, 2009 11:53 am	2	2023	Last post by grzesiek Thu Jul 30, 2009 1:44 pm
Signal to noise ratio by anrao_2 » Tue Jul 21, 2009 4:10 am	7	3488	Last post by grzesiek Thu Jul 30, 2009 1:38 pm
please recommend book for MS data interpretation by moonchips » Sun Jul 26, 2009 5:16 am	4	1532	Last post by lmh Thu Jul 30, 2009 11:25 am
Range for S/N ratio by anrao_2 » Tue Jul 21, 2009 4:17 am	11	2890	Last post by grzesiek Wed Jul 29, 2009 5:28 pm
peak identification in a nornicotine chromatogram by RachelDavis » Mon Jul 27, 2009 9:11 pm	9	2317	Last post by grzesiek Wed Jul 29, 2009 5:19 pm
Assay quantifaction of two active peaks..please help by seamoro » Tue Jul 28, 2009 12:57 pm	8	1591	Last post by grzesiek Wed Jul 29, 2009 4:43 pm
Please recommend a new HPLC system! by zhi ju » Mon Jul 20, 2009 8:39 pm	6	1979	Last post by Hfranz Tue Jul 28, 2009 3:57 pm
chemstation.. adding peaks/averging noise from2 chromatogrms by alicee! » Sat Jul 25, 2009 7:35 am	1	1694	Last post by lmh Tue Jul 28, 2009 12:30 pm
Validation: how to validate accuracy by morse » Wed Jul 22, 2009 3:03 pm	26	8481	Last post by morse Tue Jul 28, 2009 5:00 am
HPLC with buffer at pH=11 by SiliCycle » Fri Jul 24, 2009 12:02 pm	13	5870	Last post by SiliCycle Tue Jul 28, 2009 1:55 am
do you adjust pH for pure orginc mobile phase B? by moonchips » Fri Jul 24, 2009 8:17 pm	7	3419	Last post by lmh Mon Jul 27, 2009 12:32 pm
HPLC Market Overview by SiliCycle » Sun Jul 26, 2009 6:00 pm	1	1702	Last post by AA Mon Jul 27, 2009 12:26 pm
Impurities RRF in Empower by fo » Fri Jul 24, 2009 1:36 am	5	3928	Last post by Alex Buske Mon Jul 27, 2009 7:05 am
modification of reversed-phase stationary phases by chrom24 » Sat Jul 25, 2009 5:03 pm	1	1713	Last post by tom jupille Sat Jul 25, 2009 10:54 pm
solubilty of tetrabutylammonium acetate and high pressure by PigmentQueen » Fri Jul 24, 2009 4:45 pm	0	1965	Last post by PigmentQueen Fri Jul 24, 2009 4:45 pm
FTIR by pliva » Thu Jul 23, 2009 3:16 pm	4	2290	Last post by Consumer Products Guy Fri Jul 24, 2009 1:50 pm
Waters Vials on Agilent 1100 by Eric Moore » Wed Jul 22, 2009 7:52 pm	5	3218	Last post by lmh Fri Jul 24, 2009 10:53 am
On-Line Preconcentration of Sample in Chromatography?? by rick1112 » Wed Jul 22, 2009 4:04 pm	4	2462	Last post by tom jupille Thu Jul 23, 2009 9:03 pm
Pre-made Standards by botrytis » Tue Jul 21, 2009 4:06 pm	2	2188	Last post by Jade.Barker Thu Jul 23, 2009 12:29 pm
Agilent 1100 Binary Pump Mixing Problem by bisnettrj2 » Tue Jul 14, 2009 1:34 am	15	11791	Last post by Bruce Hamilton Wed Jul 22, 2009 9:47 pm
effect of sample pH on Ion exchange chromatography?? by rick1112 » Mon Jul 06, 2009 5:16 am	3	4056	Last post by tom jupille Wed Jul 22, 2009 8:14 pm
Double Peak detecting RDX by travis6203 » Sat Jun 27, 2009 3:44 am	10	5286	Last post by tom jupille Wed Jul 22, 2009 8:00 pm
HILIC question by sanks086 » Fri Jun 26, 2009 7:11 pm	34	6585	Last post by HW Mueller Wed Jul 22, 2009 5:55 pm
how to get sharper peak shape? by moonchips » Tue Jul 21, 2009 2:05 am	3	4461	Last post by mbulentcakar Wed Jul 22, 2009 2:38 pm
Deleted by TimB » Thu Apr 16, 2009 9:16 pm	20	5808	Last post by TimB Wed Jul 22, 2009 12:49 pm
hplc method development by ajey » Tue Jul 21, 2009 6:48 pm	2	2287	Last post by Vlad Orlovsky Wed Jul 22, 2009 2:55 am
Oleth-2 analysis by mskishore13 » Mon Jul 20, 2009 7:57 pm	1	1915	Last post by Consumer Products Guy Tue Jul 21, 2009 6:43 pm
cholecalciferol-D3 by balzachugo » Mon Jul 20, 2009 9:25 pm	6	9715	Last post by JMB Thu Feb 23, 2017 4:11 am
Linearilty by kvalliappan » Mon Jul 20, 2009 6:24 pm	1	1862	Last post by shaun78 Mon Jul 20, 2009 7:13 pm
Separation of RNA oligos from DNA oligos. by ksharp » Wed Jul 15, 2009 2:48 pm	4	2686	Last post by JR Thayer Mon Jul 20, 2009 5:31 pm
Fixing Wavelength by chrom » Mon Jul 20, 2009 5:48 am	3	2175	Last post by mbicking Mon Jul 20, 2009 3:12 pm
chiral chromatography by pham_sci » Thu Jun 18, 2009 12:24 pm	23	7303	Last post by chris.singleton Mon Jul 20, 2009 2:57 pm
UPLC Protein analysis - loss of retention by adoyle » Fri Jun 05, 2009 11:19 am	3	2043	Last post by Bryan Evans Wed Jul 15, 2009 5:13 pm
Dionex GP40 piston by rbarto422 » Wed Jul 01, 2009 4:31 pm	3	1785	Last post by Mark Albertson Mon Jul 13, 2009 11:03 pm
Nucleotide separation columns available commercially? by msrvnn » Fri Jul 03, 2009 1:06 pm	3	1996	Last post by PHOBIUS Sat Jul 11, 2009 4:35 pm
Accuracy through Linearity Validation by morse » Fri May 08, 2009 8:24 am	14	5577	Last post by alicee! Sat Jul 11, 2009 1:09 pm
methylpyrrolidine question by sanks086 » Fri Jul 10, 2009 4:00 pm	3	1793	Last post by HW Mueller Sat Jul 11, 2009 9:51 am
Increased in back pressure during a run! by koko » Thu Jun 25, 2009 5:53 pm	20	4214	Last post by koko Fri Jul 10, 2009 9:10 pm
mobile phase pH in ion exchange chromatography?? by rick1112 » Mon Jul 06, 2009 5:18 am	5	3525	Last post by tom jupille Fri Jul 10, 2009 7:29 pm
offline HPLC chromatogram viewer by mashtikar » Tue Jul 07, 2009 11:17 pm	13	8884	Last post by Koen Hollebekkers Fri Jul 10, 2009 5:31 pm
FPLC problem by yotso » Fri Jul 10, 2009 3:35 pm	0	2185	Last post by yotso Fri Jul 10, 2009 3:35 pm
Modification of 717 autosampler with smaller delay volume by chhubert » Wed Jul 08, 2009 1:13 am	2	1677	Last post by chhubert Fri Jul 10, 2009 10:31 am
Have you ever known the DRYLAB? by weeker2001 » Tue Jun 30, 2009 2:32 am	9	5406	Last post by aceto_81 Fri Jul 10, 2009 6:17 am
Repairing gradient mixer in Waters 600 system by akots » Mon Jul 06, 2009 11:22 pm	4	2372	Last post by akots Thu Jul 09, 2009 8:48 pm
Fluorescence-signal 35 times to low Waters 2475 by bisonium » Mon Jun 29, 2009 7:05 am	20	6212	Last post by bisonium Wed Jul 08, 2009 2:44 pm
G1313A blinking orange light by ksharp » Mon Jul 06, 2009 3:34 pm	4	2078	Last post by Consumer Products Guy Tue Jul 07, 2009 5:14 pm

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