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	64094	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Some queries of HLPC. Please help me! by ultima_86 » Thu Sep 15, 2011 12:55 pm	4	2862	Last post by Vlad Orlovsky Wed Oct 19, 2011 9:25 pm
HOW MANY DIODES ARE ENOUGH? by Fernando GCMAN » Tue Oct 18, 2011 8:07 pm	2	3331	Last post by Fernando GCMAN Wed Oct 19, 2011 1:48 pm
Help for Waters 2414 Refractive Index Detector by vgr » Mon Oct 10, 2011 6:27 pm	8	7775	Last post by gstaepels Wed Oct 19, 2011 9:39 am
Internal Standard - Suggestions Appreciated by Mark Eason » Tue Oct 18, 2011 6:54 pm	2	2423	Last post by Mark Eason Wed Oct 19, 2011 4:58 am
HPLC with fluorescense detector by shareena » Mon Oct 17, 2011 7:37 am	2	3587	Last post by shareena Wed Oct 19, 2011 3:51 am
NOISE-SENSITIVITY ISSUE by rc_123 » Tue Oct 18, 2011 3:38 pm	1	2186	Last post by tom jupille Tue Oct 18, 2011 9:24 pm
Chiral chromatography, LC recyclers by jusuom » Tue Oct 18, 2011 8:44 am	6	2100	Last post by unmgvar Tue Oct 18, 2011 6:13 pm
sodium acetate determination by bfranc81 » Tue Oct 18, 2011 8:41 am	4	2198	Last post by Bintang Tue Oct 18, 2011 11:32 am
Normal-phase UHPLC columns? by jusuom » Tue Jun 28, 2011 6:36 am	9	2685	Last post by KDF Tue Oct 18, 2011 5:11 am
Choice of solvent problem, help please! by cottrel » Tue Oct 11, 2011 7:20 pm	10	3446	Last post by KDF Tue Oct 18, 2011 4:56 am
HILIC for a n00b by passy » Tue Oct 11, 2011 3:46 am	4	1657	Last post by Alexandre Tue Oct 18, 2011 2:49 am
separation of hydrocortisone acetate n cortisone acetate by fae » Mon Oct 17, 2011 12:15 am	1	1543	Last post by tom jupille Mon Oct 17, 2011 10:22 pm
HPLC Error! by arfi02 » Sat Oct 15, 2011 2:02 pm	1	1902	Last post by DR Mon Oct 17, 2011 3:35 pm
peak width and detector senstivity by jiangds06 » Tue Oct 11, 2011 5:50 pm	6	1811	Last post by HPLCaddict Mon Oct 17, 2011 1:47 pm
Recovery by cody84 » Wed Oct 05, 2011 8:55 pm	21	3554	Last post by Alexandre Mon Oct 17, 2011 10:00 am
Problem with retention time by zanio » Tue Oct 11, 2011 1:30 pm	5	1647	Last post by Mattias Mon Oct 17, 2011 8:14 am
negative peak at blank by tubish » Fri Oct 14, 2011 12:57 pm	2	1862	Last post by LCbob Mon Oct 17, 2011 7:48 am
Abbreviation of triglycerides by tskusurkar » Sun Oct 16, 2011 2:16 pm	1	4135	Last post by chromatographer1 Mon Oct 17, 2011 1:50 am
Signal saturation for Waters 2475 fluorescence detector by millergroverp » Thu Oct 13, 2011 10:31 pm	2	1888	Last post by HW Mueller Sat Oct 15, 2011 7:48 am
HPLC chromatograph by patelhardik » Fri Oct 14, 2011 5:41 pm	1	1534	Last post by sepscientologist Fri Oct 14, 2011 6:47 pm
Stopping an HPLC after a sequence with Millinium 32 software by tima » Wed Oct 12, 2011 5:17 pm	2	1463	Last post by tima Thu Oct 13, 2011 9:45 pm
Mystery Blob in RP HPLC by KAR10 » Wed Oct 12, 2011 3:06 pm	5	2053	Last post by unmgvar Thu Oct 13, 2011 8:28 pm
Problem with Impurity.Please help me! by ultima_86 » Wed Sep 28, 2011 12:37 pm	13	3393	Last post by ultima_86 Thu Oct 13, 2011 1:30 pm
Poor Reproducibility of readings from the IC by Chromatography » Thu Oct 13, 2011 12:49 am	1	1388	Last post by tom jupille Thu Oct 13, 2011 11:49 am
Baseline drift problem by Statien » Wed Oct 12, 2011 2:02 pm	1	1555	Last post by tom jupille Wed Oct 12, 2011 7:19 pm
Pressure reduction combined with peak broadening by carlos.teixeira » Sat Oct 08, 2011 7:30 pm	8	1932	Last post by wongyl4985 Wed Oct 12, 2011 1:44 am
sec baseline by MestizoJoe » Thu Sep 22, 2011 1:55 pm	16	3519	Last post by unmgvar Tue Oct 11, 2011 10:12 pm
"Chalk talk" on pH effects in reversed phase by tom jupille » Tue Oct 11, 2011 6:51 pm	1	7089	Last post by tom jupille Tue Oct 11, 2011 6:51 pm
Waters HPLC Binary Pump versus Quartenary Pump by chicay » Fri Sep 16, 2011 2:08 am	27	8842	Last post by Peter Skelton Tue Oct 11, 2011 11:48 am
Determining the delay volume by cottrel » Fri Oct 07, 2011 7:00 am	5	3256	Last post by cottrel Tue Oct 11, 2011 8:25 am
HPLC tubing blockage by AUlee » Fri Oct 07, 2011 6:36 pm	7	7000	Last post by mirac_han Tue Oct 11, 2011 6:07 am
pump seal failure by mirac_han » Mon Oct 10, 2011 2:54 pm	1	1591	Last post by tom jupille Tue Oct 11, 2011 12:56 am
How many Chromatography column manufacturers are? by Pisces » Sun Oct 09, 2011 6:05 am	5	1762	Last post by tom jupille Mon Oct 10, 2011 2:11 pm
Re-validation by agentile » Fri Oct 07, 2011 6:55 pm	3	1619	Last post by Alex Buske Mon Oct 10, 2011 7:50 am
wavelenght accuracy determination. by mirac_han » Sat Oct 08, 2011 6:45 pm	3	2774	Last post by bisnettrj2 Mon Oct 10, 2011 6:37 am
can anyone explain this? by mas23 » Fri Oct 07, 2011 6:24 pm	11	2200	Last post by Hollow Sun Oct 09, 2011 10:12 pm
Pressure fluctuations? Effects on chromatography? by dkreller » Wed Oct 05, 2011 10:57 pm	4	1949	Last post by remesquaddie Fri Oct 07, 2011 11:20 pm
Beckman model 126 pump problems by RerumNatura » Fri Jul 08, 2011 4:57 pm	3	1822	Last post by stev434 Fri Oct 07, 2011 11:03 pm
New column gives me different values from replaced column.. by Johnhz2000 » Thu Oct 06, 2011 9:58 pm	4	1331	Last post by HPLCaddict Fri Oct 07, 2011 8:04 pm
Separation of isomers of Tolfenpyrad on HPLC by praveenpaliwal » Fri Oct 07, 2011 4:34 pm	0	1237	Last post by praveenpaliwal Fri Oct 07, 2011 4:34 pm
Dual use of HPLC system for DAD and MS detection by Edde » Tue Oct 04, 2011 4:43 pm	10	2111	Last post by carls Fri Oct 07, 2011 2:17 pm
Ion Exchange- Equib times? by LC_addict » Wed Oct 05, 2011 3:10 pm	2	1291	Last post by Markus Laeubli, Metrohm Fri Oct 07, 2011 8:27 am
In-direct UV/Ion Exchange Chromo Problems!! by LC_addict » Wed Oct 05, 2011 7:38 am	4	1300	Last post by Markus Laeubli, Metrohm Fri Oct 07, 2011 8:18 am
Peak in the blank-please help by Sarah1233 » Mon Oct 03, 2011 8:20 pm	14	1753	Last post by Sarah1233 Thu Oct 06, 2011 10:39 pm
HPLC Pesticide Column by SamC489 » Thu Sep 29, 2011 2:44 pm	3	1531	Last post by Russ Thu Oct 06, 2011 9:21 pm
normal phase LC-MS additives by hfredricks » Tue Oct 04, 2011 2:47 pm	4	2287	Last post by hfredricks Thu Oct 06, 2011 5:28 pm
How to report amount below LOQ in precision table? by krisradh1432 » Tue Oct 04, 2011 9:38 am	4	2223	Last post by JGK Wed Oct 05, 2011 8:14 pm
RI Detector Energy by HPLC_Help » Mon Oct 03, 2011 6:57 pm	2	1259	Last post by tom jupille Wed Oct 05, 2011 6:40 pm
What is overlay injections? by satyam_qa » Sun Oct 02, 2011 6:14 am	4	6604	Last post by KDF Wed Oct 05, 2011 5:27 pm
Fractionation with silica..whats this called SEC?? by seamoro » Wed Oct 05, 2011 11:05 am	2	1411	Last post by KDF Wed Oct 05, 2011 4:37 pm

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