Liquid Chromatography

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Topics	Replies	Views	Last post
Carryover in Injections - Possible Causes? by chaslf » Wed Feb 23, 2005 3:58 pm	3	2795	Last post by Mark Tracy Wed Feb 23, 2005 7:22 pm
Minimu resolution in HPLC by DCL11 » Sun Feb 20, 2005 12:00 am	3	3064	Last post by Rob Burgess Wed Feb 23, 2005 1:41 pm
TFA HPLC grade by Provetech » Tue Feb 22, 2005 8:59 am	1	2539	Last post by Provetech Wed Feb 23, 2005 8:41 am
concentration expressed as "equivalent" by csolaz » Mon Feb 14, 2005 10:41 am	5	3373	Last post by csolaz Wed Feb 23, 2005 8:23 am
THF in mobile phase turns glass frit black by Tim » Mon Feb 07, 2005 3:03 pm	6	4132	Last post by Durk Wed Feb 23, 2005 7:49 am
monolith high resolution by jbland » Fri Feb 11, 2005 12:04 am	16	6940	Last post by Einar Ponten Tue Feb 22, 2005 9:24 pm
can I stick charomatographms here? by michelle.zhang » Tue Feb 22, 2005 2:53 am	1	2800	Last post by tom jupille Tue Feb 22, 2005 6:18 pm
Refractive index data for ethanol-water by ridge » Tue Feb 08, 2005 11:16 pm	7	6475	Last post by tennessee Tue Feb 22, 2005 4:03 pm
Changing retention times during LCMS runs by Jasmine » Mon Feb 21, 2005 2:01 pm	10	4503	Last post by Victor Tue Feb 22, 2005 3:13 pm
UV detection limit for TFA by ande2922 » Wed Feb 09, 2005 9:41 pm	2	3008	Last post by marc Tue Feb 22, 2005 1:13 am
What value is "acceptable" for a carry over? by crlar » Thu Feb 17, 2005 11:56 pm	6	6112	Last post by marc Tue Feb 22, 2005 12:56 am
How do metals enhance silanol activity? by Ricardinio » Mon Feb 21, 2005 8:55 pm	1	2991	Last post by tom jupille Mon Feb 21, 2005 9:46 pm
HPLC Column by ltnguy3 » Thu Feb 17, 2005 12:41 pm	9	5459	Last post by tom jupille Mon Feb 21, 2005 9:38 pm
PREP Column with peak splitting problem by Provetech » Wed Feb 16, 2005 3:10 pm	5	3653	Last post by Mark Mon Feb 21, 2005 7:54 pm
Substitution for Sodium Perchlorate in Mobile Phase by syx » Tue Dec 21, 2004 12:24 am	21	11041	Last post by HW Mueller Mon Feb 21, 2005 3:27 pm
J&W High Pressure Soxhlet Extractor by WK » Wed Feb 16, 2005 4:54 pm	2	3353	Last post by WK Mon Feb 21, 2005 11:27 am
Replace phosphate buffer for LC prep by Provetech » Fri Feb 18, 2005 1:25 pm	4	3351	Last post by Provetech Sun Feb 20, 2005 7:38 pm
amino columns by e_georgieva » Wed Feb 16, 2005 12:48 pm	11	5290	Last post by kiknos Sun Feb 20, 2005 10:46 am
Choosing the Conc of Ion-pairing Reagent(SDS) by olaniyi » Tue Feb 15, 2005 5:15 pm	8	6257	Last post by Chris Pohl Fri Feb 18, 2005 11:36 pm
Old HP 1040A system installation by jfrankh » Thu Feb 17, 2005 4:33 pm	4	4053	Last post by jfrankh Fri Feb 18, 2005 7:36 pm
PDA and UV detector by Kaoula » Fri Jan 28, 2005 6:48 am	8	6768	Last post by vofelyp Thu Feb 17, 2005 12:47 pm
buy parts and assemble HPLC prep system? by kiknos » Wed Feb 16, 2005 1:12 am	2	3565	Last post by kiknos Thu Feb 17, 2005 1:31 am
Phosphatidyl Serine by syx » Wed Jan 26, 2005 8:45 am	16	7160	Last post by Einar Ponten Wed Feb 16, 2005 10:00 pm
Basic compounds and low pH by Ricardinio » Sun Feb 13, 2005 9:44 pm	8	4677	Last post by pipettemonkey Wed Feb 16, 2005 12:04 am
Organic acids: isocratic elution by Luciano » Thu Feb 10, 2005 2:35 pm	2	3028	Last post by Einar Ponten Tue Feb 15, 2005 9:06 pm
Problems in Monolithic column (PS-DVB) from LC packings by zf12345 » Wed Jan 26, 2005 7:25 pm	13	5980	Last post by Einar Ponten Tue Feb 15, 2005 8:58 pm
Problems with carry over by Sarahr » Mon Feb 07, 2005 4:49 pm	3	3406	Last post by Klaus Tue Feb 15, 2005 3:31 pm
Clopidogrel by oli » Tue Feb 15, 2005 2:15 pm	1	2599	Last post by Ann Tue Feb 15, 2005 2:27 pm
Fluorescence detection - influence of solvent by Veronika R. Meyer » Wed Jan 05, 2005 3:22 pm	6	4011	Last post by AdrianF Tue Feb 15, 2005 12:19 pm
Any explanation for "reverse fronting" peak shape? by Tony » Fri Feb 04, 2005 10:41 pm	19	8604	Last post by HW Mueller Tue Feb 15, 2005 8:42 am
Tailing peaks on ZIC-HILIC by CSV » Mon Feb 14, 2005 11:46 am	4	3971	Last post by CSV Tue Feb 15, 2005 7:57 am
Extraction method for amine and carboxilic group attached.. by Ramasarma » Wed Feb 09, 2005 5:12 am	10	4686	Last post by Ramasarma Tue Feb 15, 2005 6:06 am
selection of wavelength for HPLC analysis! by adams » Mon Feb 14, 2005 4:26 pm	2	7305	Last post by Consumer Products Guy Mon Feb 14, 2005 10:15 pm
PERCENTAGE OF RT WINDOW IN HPLC by FARD » Tue Feb 08, 2005 8:39 am	2	3491	Last post by Benjamin Mon Feb 14, 2005 7:18 pm
ion pair usage by N.V.V.S.S. RAMAN » Mon Jan 17, 2005 8:10 am	5	3541	Last post by Chris Pohl Mon Feb 14, 2005 5:45 pm
Efficiency in Separation of Proteins by Nalizer » Sat Feb 12, 2005 3:58 am	1	2693	Last post by tom jupille Sun Feb 13, 2005 11:14 pm
Pb of CLHP with both chlorhexidine and lignoca by Lukasso » Fri Feb 11, 2005 11:28 am	2	2913	Last post by tom jupille Sun Feb 13, 2005 11:02 pm
How to access previous posts using keywords? by Ricardinio » Wed Feb 09, 2005 4:55 pm	3	2707	Last post by Ricardinio Sun Feb 13, 2005 6:30 pm
HPLC of active compounds in medicinal plants by Clayton » Thu Feb 03, 2005 11:02 pm	9	4972	Last post by kiknos Sun Feb 13, 2005 4:20 am
Role of sodium sulphate as additive in mobile phase by Ricardinio » Tue Feb 08, 2005 5:43 pm	16	9967	Last post by Chris Pohl Sat Feb 12, 2005 10:58 pm
Sugars analysis with amino or carbohidrate column? by ccharles » Fri Feb 11, 2005 2:07 pm	3	3770	Last post by Steve Fri Feb 11, 2005 4:42 pm
Low recovery of ascorbyl-palmitate by CSV » Fri Feb 11, 2005 10:45 am	1	2590	Last post by HW Mueller Fri Feb 11, 2005 4:02 pm
hplc for lycopene by wolfgangmoritz » Wed Feb 09, 2005 7:27 am	4	3317	Last post by wolfgangmoritz Fri Feb 11, 2005 12:16 pm
Anionic IP reagents: sulphonates vs. sulphates by Rob Burgess » Thu Feb 10, 2005 5:17 pm	1	2728	Last post by tom jupille Thu Feb 10, 2005 8:09 pm
extraction of E coli DNA by chromlc » Thu Feb 10, 2005 3:40 am	1	2598	Last post by tom jupille Thu Feb 10, 2005 7:59 pm
HPLC method for residual DNA quantitation by MartinG » Thu Feb 10, 2005 7:56 pm	0	2598	Last post by MartinG Thu Feb 10, 2005 7:56 pm
organic acids by Luciano » Thu Feb 10, 2005 4:27 pm	1	2658	Last post by Jeff Brewer Thu Feb 10, 2005 5:06 pm
Solvents used for fish oils using HPLC-ELSD, silica colum. by s341855 » Thu Feb 10, 2005 2:33 am	0	2517	Last post by s341855 Thu Feb 10, 2005 2:33 am
Getting retention with a zwitterion on Hilic? by RA Koster » Thu Jan 27, 2005 10:13 pm	7	15063	Last post by Uwe Neue Thu Feb 10, 2005 12:24 am
Protein analysis by HPLC by Perachiotti Anna » Thu Feb 03, 2005 9:00 am	14	5977	Last post by Uwe Neue Thu Feb 10, 2005 12:13 am

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