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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11907 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	62177	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Methanol usage with bare silica column by avitan » Sun Jul 23, 2006 6:15 pm	12	5788	Last post by Uwe Neue Sat Jul 29, 2006 1:13 am
Ghost peak in reversed phase by Aidan » Tue Jul 25, 2006 4:01 pm	9	3937	Last post by Uwe Neue Sat Jul 29, 2006 1:03 am
LC-MS/MS for steroid analysis in human serum and urine by Jaak » Sat Jun 17, 2006 9:36 am	4	3018	Last post by Uwe Neue Sat Jul 29, 2006 12:56 am
Lycopene by HPLC-DAD by carlos.teixeira » Thu Jul 27, 2006 10:30 pm	3	2733	Last post by Mark Tracy Fri Jul 28, 2006 7:02 pm
Column for highly aqueous mobile phase by Prometheus » Thu Jul 13, 2006 9:09 am	10	3891	Last post by ghie malig Fri Jul 28, 2006 11:11 am
%recovery in experimental design by amotic » Fri Jul 21, 2006 2:23 pm	4	3383	Last post by JM Fri Jul 28, 2006 8:17 am
Ion-chrom: are PEEK pump componenets necessary? by Andyp » Wed Jul 19, 2006 12:39 pm	19	7176	Last post by Chris Pohl Fri Jul 28, 2006 8:09 am
Life of HP 1050 DAD detector Lamp by letsdoit » Thu Jul 27, 2006 9:00 pm	0	2015	Last post by letsdoit Thu Jul 27, 2006 9:00 pm
Quantifying castor oil extracted from plasma by Larry » Wed Jul 26, 2006 6:00 pm	7	3817	Last post by Larry Thu Jul 27, 2006 3:21 pm
total saponins analysis by imonic » Mon Jul 17, 2006 9:21 am	1	2192	Last post by Kelly Johnson Thu Jul 27, 2006 3:43 am
mechanism explanation by vincenzoxxx » Wed Jul 26, 2006 1:05 pm	0	2112	Last post by vincenzoxxx Wed Jul 26, 2006 1:05 pm
Impurity of Risedronate Sodium by syx » Fri Jul 14, 2006 1:06 am	7	3284	Last post by syx Wed Jul 26, 2006 12:19 am
Acetone Sample Solvent and LC-GC Question by jonjon » Mon Jul 17, 2006 5:21 pm	3	3604	Last post by Consumer Products Guy Tue Jul 25, 2006 7:26 pm
Identification of standard by Ameroid » Mon Jul 10, 2006 7:25 am	12	3948	Last post by Mark Tracy Tue Jul 25, 2006 5:11 pm
strange peak near end of elution by s » Mon Jul 17, 2006 5:49 pm	11	4644	Last post by Andyp Mon Jul 24, 2006 3:45 pm
phenylephrine impurities by jamesque » Sun Jul 23, 2006 11:27 pm	0	2714	Last post by jamesque Sun Jul 23, 2006 11:27 pm
Assay Method Validation by Liza » Mon Jul 17, 2006 1:42 am	5	3146	Last post by Liza Fri Jul 21, 2006 10:15 pm
Software (hence sensitivity) problem by letsdoit » Wed Jul 19, 2006 10:09 pm	6	2816	Last post by Bruce Hamilton Fri Jul 21, 2006 7:24 pm
pH meter broken electrode? by fbreton » Tue Jul 18, 2006 7:34 pm	16	6639	Last post by gbalock Fri Jul 21, 2006 6:31 pm
Stability Comparison by Prometheus » Fri Jul 21, 2006 11:36 am	0	2053	Last post by Prometheus Fri Jul 21, 2006 11:36 am
HP1100 autosampler problem! by fbreton » Thu Jul 13, 2006 9:29 pm	4	7542	Last post by Rollo Fri Jul 21, 2006 10:42 am
HP1100 G1313A ALS firmware update by fbreton » Mon Jul 17, 2006 10:35 pm	3	3216	Last post by Rollo Fri Jul 21, 2006 10:29 am
Column Washing & Equilibration by Prometheus » Wed Jul 19, 2006 8:57 am	2	2388	Last post by Prometheus Fri Jul 21, 2006 10:17 am
To stir or not to stir when taking a pH by r6180 » Thu Jul 13, 2006 9:09 pm	9	5414	Last post by Rafael Chust Fri Jul 21, 2006 9:08 am
Does anyone use PerkinElmer HPLC systems? by n-cute » Mon Jul 17, 2006 9:12 am	12	4406	Last post by Alex Buske Fri Jul 21, 2006 8:14 am
Perkin elmer DAD and tetracyline by oscarBAL » Wed Jul 19, 2006 4:04 pm	2	2508	Last post by Alex Buske Fri Jul 21, 2006 7:56 am
Column pressure rising by Albany-12303 » Wed Jul 19, 2006 3:37 pm	15	5231	Last post by Peter Apps Fri Jul 21, 2006 6:50 am
Vitamin K3 by sabriel » Mon Jul 17, 2006 6:49 am	3	2323	Last post by sabriel Fri Jul 21, 2006 5:59 am
TosohBioscience Tech person online for tech talk Q/A by TosohTechman » Thu Jul 20, 2006 6:15 pm	0	2019	Last post by TosohTechman Thu Jul 20, 2006 6:15 pm
Tailing problem by DeimerlyC » Wed Jul 19, 2006 4:27 pm	3	2589	Last post by Mark Tracy Thu Jul 20, 2006 4:12 pm
iron(III) EDTA complex by Louise77 » Tue Jul 11, 2006 4:54 pm	7	5714	Last post by Kostas Petritis Wed Jul 19, 2006 10:03 pm
gripper fingers failed to open/close on agilent 1100's ALS by ntruong » Wed Jun 14, 2006 11:14 pm	5	3448	Last post by rnelson Tue Jul 18, 2006 8:15 pm
Wavelength Rnge for PDA Peak Purity by gbalock » Mon Jul 10, 2006 5:02 pm	3	2831	Last post by gbalock Mon Jul 17, 2006 9:20 pm
query about HPLC and HPTLC peaks obtained by vshyam81 » Sun Jul 16, 2006 2:38 pm	2	2413	Last post by Kostas Petritis Mon Jul 17, 2006 3:19 pm
Trenbolone and norbolethone by Louise77 » Sun Jul 16, 2006 2:33 pm	3	2671	Last post by Albany-12303 Mon Jul 17, 2006 2:09 pm
Mobile Phase Expiry by i79 » Tue Jul 11, 2006 5:18 pm	14	9161	Last post by HW Mueller Mon Jul 17, 2006 8:03 am
Qs on Empower quntitation and Symmetry columns by Medkemist » Tue Jun 20, 2006 7:00 pm	6	3876	Last post by SSGG Sun Jul 16, 2006 4:40 am
Trypsin Digest Cartridge problem by Alice » Tue Jun 20, 2006 4:59 am	1	2153	Last post by Kostas Petritis Sat Jul 15, 2006 12:43 am
Chromatographic columns developers by courju » Sat Jun 17, 2006 6:30 pm	3	2385	Last post by Kostas Petritis Sat Jul 15, 2006 12:35 am
Ion Pair Reagent and Its Salts by syx » Mon Jun 05, 2006 7:33 am	6	3161	Last post by Kostas Petritis Sat Jul 15, 2006 12:28 am
Basic ion-pairing agent by chichibabin » Wed Jul 05, 2006 11:02 am	2	2339	Last post by Kostas Petritis Sat Jul 15, 2006 12:22 am
Separation of dinitrophenolic compounds by Ameroid » Fri Jul 14, 2006 9:46 am	5	2753	Last post by Kostas Petritis Fri Jul 14, 2006 11:43 pm
Ion-pairing with acetonitrile or MeOH in the mobile phase... by Peps » Thu Jul 13, 2006 12:27 pm	3	2737	Last post by Kostas Petritis Fri Jul 14, 2006 11:35 pm
split peak with mobile phase by sluggo » Fri Jul 14, 2006 9:03 pm	4	3005	Last post by james little Fri Jul 14, 2006 10:16 pm
High / low Chromatography for estimating impurities by Rob Burgess » Thu Jul 13, 2006 4:09 pm	1	2039	Last post by Albany-12303 Thu Jul 13, 2006 7:12 pm
haloperidol by ana » Mon Jul 03, 2006 1:51 pm	3	2131	Last post by Louise77 Tue Jul 11, 2006 5:08 pm
help by anti » Sat Jul 08, 2006 7:32 am	1	1947	Last post by Louise77 Tue Jul 11, 2006 5:04 pm
Allopurinol related substance assay - inconsistent peaks. by AdrianF » Wed Jul 05, 2006 3:57 pm	2	2043	Last post by AdrianF Tue Jul 11, 2006 2:01 pm
Fast versus Conventional HPLC by ccyting » Fri Jun 30, 2006 10:03 pm	3	2620	Last post by amitavaghosh Tue Jul 11, 2006 12:12 pm
Guanidine HCl compatability of C18 by Amar » Sat Jul 08, 2006 6:06 pm	8	6874	Last post by HW Mueller Tue Jul 11, 2006 6:49 am

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