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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11915 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	62271	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
lipophilic tocopherol ester analysis on HPLC by Provetech » Fri Nov 24, 2006 2:12 pm	0	1884	Last post by Provetech Fri Nov 24, 2006 2:12 pm
assay and RS working concentration by 4ugirish » Wed Nov 22, 2006 3:12 pm	1	1966	Last post by efirth Fri Nov 24, 2006 1:04 pm
pressure problem with HPLC by kupikupi » Mon Nov 20, 2006 12:07 pm	6	3150	Last post by diana Fri Nov 24, 2006 7:07 am
flow rate vs. signal by mags » Wed Nov 08, 2006 8:43 pm	43	11900	Last post by danko Thu Nov 23, 2006 4:47 pm
Mobile phase for HPLC-EC by unicorn » Thu Nov 23, 2006 1:42 pm	0	2136	Last post by unicorn Thu Nov 23, 2006 1:42 pm
why the detection wavelength changes ....? by harsha » Wed Nov 22, 2006 10:12 am	5	5500	Last post by Bruce Hamilton Thu Nov 23, 2006 8:56 am
High pH column stability? by bgiles » Wed Nov 22, 2006 2:45 pm	6	3756	Last post by Uwe Neue Wed Nov 22, 2006 8:34 pm
HPLC peak integration method by S.M.PANDYA » Sat Nov 11, 2006 3:50 am	14	14203	Last post by rolpe Wed Nov 22, 2006 6:30 pm
Correctness of results. by n-cute » Thu Nov 16, 2006 2:42 pm	2	2596	Last post by rolpe Wed Nov 22, 2006 6:08 pm
Sample Preparation for Dry Syrup by syx » Tue Nov 21, 2006 1:22 am	3	2479	Last post by gbalock Wed Nov 22, 2006 3:42 pm
HFBA buffer by naikarati » Mon Nov 20, 2006 7:50 pm	5	2604	Last post by HW Mueller Wed Nov 22, 2006 7:55 am
problem with eluent generation by lpalme02 » Tue Nov 14, 2006 4:24 am	2	2167	Last post by lpalme02 Wed Nov 22, 2006 1:51 am
In need of help on Ways to overcome dye peaks overlap by fad-244 » Sat Nov 18, 2006 7:59 am	4	2174	Last post by Mark Tracy Tue Nov 21, 2006 5:47 pm
Overnight runs by redzilla » Mon Nov 20, 2006 9:03 pm	4	2821	Last post by redzilla Tue Nov 21, 2006 3:42 pm
stability indicating methods by srdales » Sun Nov 19, 2006 10:17 pm	2	2025	Last post by syx Tue Nov 21, 2006 3:02 am
Modern C18 Stationary Phases - Phenolic in Tea Samples by Renato » Fri Nov 10, 2006 12:15 am	6	2998	Last post by juddc Mon Nov 20, 2006 11:52 pm
UPLC/HPLC Method Development and High pH buffer by Karen Lee » Thu Nov 16, 2006 2:00 pm	15	7283	Last post by AA Mon Nov 20, 2006 4:24 pm
comparison of impurities during site method transfer by srdales » Sun Nov 19, 2006 10:16 pm	1	2088	Last post by JM Mon Nov 20, 2006 5:18 am
Perchloric acid in Methanol/ACN - UV absorption? by JD » Fri Nov 17, 2006 3:57 pm	3	4015	Last post by JD Sat Nov 18, 2006 5:01 am
interesting story by ym3142 » Fri Nov 17, 2006 4:37 am	7	2781	Last post by DR Fri Nov 17, 2006 7:51 pm
Costs by MIB_EO » Fri Nov 10, 2006 12:21 pm	6	2583	Last post by Bruce Hamilton Fri Nov 17, 2006 7:09 pm
column selector by mardexis » Fri Nov 03, 2006 2:00 am	5	2776	Last post by josebenjamin Fri Nov 17, 2006 3:41 pm
Needle seat malfunction on Waters Alliance by sciencegeek » Fri Nov 17, 2006 2:58 pm	0	2210	Last post by sciencegeek Fri Nov 17, 2006 2:58 pm
sudden drop in baseline by jzt » Fri Sep 22, 2006 5:03 pm	6	3655	Last post by Bryan Evans Fri Nov 17, 2006 12:05 pm
Carryover of protein sample on reverse phase by MGagne » Wed Nov 08, 2006 7:44 pm	12	5691	Last post by HW Mueller Fri Nov 17, 2006 8:14 am
my favorite... lod/loq :) by n-cute » Tue Nov 14, 2006 10:35 am	6	3375	Last post by JM Fri Nov 17, 2006 6:37 am
Purity check of impurity.. by Pegry » Wed Nov 15, 2006 7:26 pm	5	3385	Last post by jzt Thu Nov 16, 2006 9:33 pm
precolumn frit- hplc by vanja13 » Thu Nov 16, 2006 11:54 am	2	2815	Last post by skunked_once Thu Nov 16, 2006 4:51 pm
Any opinions on Iatroscan MK6 TLC-FID system by josebenjamin » Tue Nov 14, 2006 10:36 pm	3	3860	Last post by Bruce Hamilton Thu Nov 16, 2006 12:39 am
void volume by emmaburbridge » Mon Nov 13, 2006 2:09 pm	3	2279	Last post by unmgvar Wed Nov 15, 2006 9:50 pm
General Shoulder Troubleshooting by ChemistB » Tue Nov 14, 2006 8:23 pm	11	4622	Last post by danko Wed Nov 15, 2006 8:29 pm
In need of UV-FL HPLC troubleshooting ideas by EnvChemist » Wed Nov 15, 2006 6:08 pm	0	1823	Last post by EnvChemist Wed Nov 15, 2006 6:08 pm
MP for Tylosin by Seb@. » Tue Nov 14, 2006 7:38 am	3	2063	Last post by ym3142 Wed Nov 15, 2006 5:12 am
signal vs flow rate by mags » Wed Nov 08, 2006 8:39 pm	3	2204	Last post by unmgvar Tue Nov 14, 2006 10:55 pm
is this true or false by ym3142 » Thu Nov 09, 2006 3:41 pm	10	3382	Last post by ym3142 Tue Nov 14, 2006 2:54 am
Amoxycillin and Clavulanic Acid Tablets USP by syx » Mon Nov 13, 2006 8:17 am	1	2040	Last post by Mark Tracy Mon Nov 13, 2006 7:52 pm
Acquity columns and UPLC by pve » Fri Nov 10, 2006 4:49 pm	6	3389	Last post by PJ8 Mon Nov 13, 2006 11:23 am
Complicated Mixture by syx » Wed Oct 18, 2006 7:37 am	19	6179	Last post by syx Mon Nov 13, 2006 8:27 am
problem with the sample peaks by excalibur30 » Wed Nov 08, 2006 4:05 pm	3	2451	Last post by grreddy Mon Nov 13, 2006 5:59 am
Antioxidant to Ascorbic Acid. by Jamie » Fri Nov 03, 2006 12:23 am	15	6286	Last post by HW Mueller Fri Nov 10, 2006 8:17 am
Choice of mobile phase by mojo » Mon Nov 06, 2006 10:59 am	17	5425	Last post by ym3142 Thu Nov 09, 2006 11:10 pm
lod and loq again by n-cute » Tue Nov 07, 2006 7:05 am	7	3077	Last post by n-cute Thu Nov 09, 2006 8:55 am
SCX by Philip » Wed Nov 08, 2006 3:04 am	5	2942	Last post by Philip Thu Nov 09, 2006 4:17 am
Newbie HPLC system by YoramG » Tue Nov 07, 2006 5:01 pm	1	2042	Last post by Philip Thu Nov 09, 2006 4:08 am
Buffer gradients/ IP gradients by Philip » Wed Nov 08, 2006 1:22 am	3	2539	Last post by Mark Tracy Wed Nov 08, 2006 7:49 pm
Buffers with high temperature by VEBA » Wed Oct 25, 2006 8:05 pm	13	4642	Last post by ym3142 Wed Nov 08, 2006 6:40 pm
about isomer separation, by ahvivian » Thu Nov 02, 2006 8:50 am	7	2903	Last post by ahvivian Wed Nov 08, 2006 11:42 am
Hydrogen peroxide by LC by Mattias » Tue Nov 07, 2006 6:37 am	4	3858	Last post by ym3142 Wed Nov 08, 2006 2:28 am
lod loq calculation by wanda50 » Mon Nov 06, 2006 7:22 pm	4	2870	Last post by wanda50 Tue Nov 07, 2006 6:46 pm
Importance of Y-Intercept in Method Validation by grreddy » Tue Nov 07, 2006 7:51 am	4	4646	Last post by Mark Tracy Tue Nov 07, 2006 6:37 pm

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