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	83682	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
HPLC of Natural Extracts by TimB » Thu Jul 17, 2008 6:47 pm	8	2147	Last post by TimB Wed Jul 30, 2008 6:54 pm
LiChrospher Si columns by jusuom » Wed Jul 30, 2008 12:24 pm	1	1393	Last post by unmgvar Wed Jul 30, 2008 4:35 pm
Column Conditioning-Highly Important, help needed ASAP by paddyjoe » Mon Jul 28, 2008 2:54 pm	4	1820	Last post by paddyjoe Tue Jul 29, 2008 9:31 am
Normal Phase Problem by mant0 » Thu Jul 24, 2008 10:00 pm	6	1824	Last post by mant0 Mon Jul 28, 2008 4:04 pm
HPLC by sharaduj » Mon Jul 28, 2008 11:19 am	1	1444	Last post by tom jupille Mon Jul 28, 2008 3:46 pm
Sensitivity check in syst suit by mojo » Tue Jul 22, 2008 9:41 am	1	1570	Last post by Rob Burgess Mon Jul 28, 2008 1:01 pm
Error message--please help on Agilent 1100 with Empower by moonchips » Fri Jul 25, 2008 5:53 pm	4	2990	Last post by DR Mon Jul 28, 2008 12:44 pm
The best C18 columns for RP by Vecana » Wed Jul 23, 2008 2:28 pm	5	2376	Last post by Bryan Evans Mon Jul 28, 2008 12:39 pm
Experts of comprehensive LC available? by micro » Tue Jul 22, 2008 12:01 pm	16	3416	Last post by J_Medve Mon Jul 28, 2008 9:29 am
Do I expel the last drop when I use an eppendorf pippet? by moonchips » Tue Jul 22, 2008 8:22 pm	9	4521	Last post by HW Mueller Sat Jul 26, 2008 8:57 am
What caused the shift of my peak? urgent ! by wxmwqr » Tue Jul 22, 2008 4:02 pm	4	2250	Last post by wxmwqr Wed Jul 23, 2008 7:29 pm
UPDATE: Leaking Waters Seal Pak for 717 Autosampler by Ghost Writer » Wed Jul 23, 2008 2:26 pm	0	1464	Last post by Ghost Writer Wed Jul 23, 2008 2:26 pm
Signal periodicity by lcrandall » Thu Jul 17, 2008 3:58 pm	12	2892	Last post by lcrandall Wed Jul 23, 2008 1:49 pm
System suitability by mojo » Thu Jul 17, 2008 7:58 pm	6	2056	Last post by Terry Wed Jul 23, 2008 12:03 pm
New Seal Pak is leaking by Ghost Writer » Tue Jul 22, 2008 5:42 pm	1	1295	Last post by JGK Tue Jul 22, 2008 7:55 pm
How to insert the image in the topic? by wxmwqr » Tue Jul 22, 2008 2:24 pm	3	1363	Last post by Kostas Petritis Tue Jul 22, 2008 3:25 pm
Odd problem: Pressure rising rising until system shuts down by dkreller » Mon Jul 14, 2008 5:19 pm	2	1515	Last post by dkreller Mon Jul 21, 2008 10:17 pm
Injecting air segments by peptidemetdev » Mon Jul 21, 2008 7:57 pm	1	1598	Last post by Kostas Petritis Mon Jul 21, 2008 9:40 pm
USP plates by mojo » Sun Jul 20, 2008 8:22 pm	4	2009	Last post by tom jupille Mon Jul 21, 2008 7:46 pm
HPLC Detection Limit by berettagtz » Sun Jul 20, 2008 9:15 am	4	4412	Last post by Dan Mon Jul 21, 2008 6:27 pm
Tailing of Polyol by JDKnit » Fri Jul 18, 2008 7:53 pm	4	1949	Last post by Bruce Hamilton Sun Jul 20, 2008 1:36 am
Hypersil ENV Column by ARBE98 » Fri Jul 18, 2008 6:48 pm	2	1435	Last post by ARBE98 Fri Jul 18, 2008 7:41 pm
New here - something I have to sort out by noam1234 » Fri Jul 11, 2008 3:49 am	5	1834	Last post by unmgvar Fri Jul 18, 2008 4:09 pm
Analysis of Coated Tablets by Sunjay » Mon Jul 14, 2008 8:41 am	3	2045	Last post by Rob Burgess Fri Jul 18, 2008 3:45 pm
Best pH meter for a QC lab by John » Mon Jun 16, 2008 3:27 pm	15	6657	Last post by Markus Laeubli, Metrohm Fri Jul 18, 2008 8:15 am
Mobile phase optimization (isocratic method) by rick1112 » Sat Jul 05, 2008 3:41 am	7	3121	Last post by Bryan Evans Thu Jul 17, 2008 7:44 pm
Active Inlet valve Leaking by bmoritz » Wed Jul 09, 2008 4:24 pm	18	8240	Last post by lcrandall Thu Jul 17, 2008 5:08 pm
UV detector error... by Ms.Awesome » Wed Jul 16, 2008 8:20 pm	4	2524	Last post by Ms.Awesome Thu Jul 17, 2008 4:34 pm
Analytical Balance Calibration by Sunjay » Wed Jul 09, 2008 9:56 am	2	2287	Last post by DR Thu Jul 17, 2008 12:59 pm
Can someone define the "Donan effect"? by peptidemetdev » Tue Jul 15, 2008 11:03 pm	2	1917	Last post by peptidemetdev Wed Jul 16, 2008 4:44 pm
Weird dips in diode array baseline by bisnettrj2 » Tue Jul 15, 2008 3:15 pm	2	1705	Last post by bisnettrj2 Tue Jul 15, 2008 4:56 pm
calibration curve by syx » Mon Jul 14, 2008 7:23 am	4	2328	Last post by syx Tue Jul 15, 2008 12:44 am
Why SEC column go by rick1112 » Tue Jul 08, 2008 5:26 am	4	2119	Last post by dkreller Mon Jul 14, 2008 5:26 pm
HPLC Method for MEHQ by LC101 » Wed Jul 09, 2008 8:26 pm	5	4737	Last post by Matt Savage Mon Jul 14, 2008 10:36 am
Old article on Pharmaceutical Technology.. by Pegry » Sat Jul 12, 2008 2:52 pm	0	1597	Last post by Pegry Sat Jul 12, 2008 2:52 pm
FLow rate problem by rice » Fri Jul 11, 2008 6:59 pm	2	1645	Last post by unmgvar Sat Jul 12, 2008 2:04 pm
A question for Uwe by PHOBIUS » Fri Jul 11, 2008 8:09 am	14	3327	Last post by PHOBIUS Sat Jul 12, 2008 7:46 am
Baseline Flactuations by Omar » Mon Jul 07, 2008 6:17 am	10	5044	Last post by Bruce Hamilton Fri Jul 11, 2008 7:49 pm
HPLC UV Detector Calibrations by rnelson » Fri Jul 11, 2008 3:58 pm	2	3282	Last post by Bruce Hamilton Fri Jul 11, 2008 7:31 pm
Waters Developing HPLC Separations - Training Manual (1991) by sfe-co2 » Sat Jul 05, 2008 11:04 am	9	2819	Last post by Uwe Neue Fri Jul 11, 2008 6:18 pm
Negative peaks using Normal phase by liam1978 » Fri Jul 11, 2008 3:31 pm	1	1429	Last post by zokitano Fri Jul 11, 2008 4:55 pm
Injection valve leak by PHO » Thu Jul 10, 2008 2:17 pm	2	3191	Last post by rnelson Fri Jul 11, 2008 3:49 pm
help: high pressure of safe guard by wxmwqr » Tue Jul 08, 2008 8:04 pm	11	2395	Last post by HW Mueller Fri Jul 11, 2008 8:27 am
Exclude propylene glycol by aceto_81 » Fri Jul 11, 2008 6:53 am	0	1475	Last post by aceto_81 Fri Jul 11, 2008 6:53 am
Internal Standards by hajdaei » Thu Jul 10, 2008 8:03 pm	6	2274	Last post by Stryder08 Thu Jul 10, 2008 11:32 pm
Role of THF in RP-HPLC separation by praveenpaliwal » Thu May 29, 2008 3:36 pm	13	7247	Last post by JoeFish Thu Jul 10, 2008 1:58 pm
GPC Peak Integration by LC101 » Tue Jun 03, 2008 12:38 pm	7	7033	Last post by Koen Hollebekkers Thu Jul 10, 2008 5:34 am
Oxytetracycline and CAD detector problems by Emi » Fri Jul 04, 2008 6:00 pm	6	2463	Last post by Bryan Evans Wed Jul 09, 2008 3:11 pm
Fundamentals of HPLC course starts Friday, July 11 by tom jupille » Tue Jul 08, 2008 8:37 pm	0	1529	Last post by tom jupille Tue Jul 08, 2008 8:37 pm
Anion Exchange Retention Shift by dsduncan » Fri Jul 04, 2008 3:56 pm	8	2958	Last post by dsduncan Tue Jul 08, 2008 6:54 pm

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