Student Projects - Page 11 - Chromatography Forum

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Welcome! by tom jupille » Thu Mar 11, 2021 6:53 pm	0	69773	Last post by tom jupille Thu Mar 11, 2021 6:53 pm

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HPLC Pump pressure increases wth blockage in guard column by sboopathi » Thu Apr 21, 2011 7:26 pm	3	4250	Last post by lmh Fri Apr 22, 2011 12:40 pm
what is the purpose of oxygen deficiency by junior.analyzer » Fri Oct 15, 2010 6:39 pm	11	4753	Last post by junior.analyzer Tue Apr 19, 2011 10:15 am
C18 guard column on C8 column by dw237606 » Thu Jan 06, 2011 9:25 pm	4	3672	Last post by tom jupille Fri Apr 15, 2011 2:10 pm
Parabens - stability studies by Aleksandra » Mon Mar 28, 2011 5:46 pm	14	6884	Last post by Aleksandra Tue Apr 12, 2011 11:50 am
Oxidation methods which of which ? by Newchromatographer » Fri Apr 08, 2011 2:33 pm	3	3212	Last post by Don_Hilton Fri Apr 08, 2011 11:16 pm
Difference between Qualitative and Quantitative Analysis by vrcr » Fri Apr 08, 2011 10:16 am	2	6121	Last post by Jiri Urban Fri Apr 08, 2011 6:14 pm
what make same Uv detector different ? by Newchromatographer » Tue Mar 29, 2011 3:04 pm	6	3706	Last post by Newchromatographer Fri Apr 08, 2011 2:23 pm
ICS 3000 by aqawwas » Sat Mar 26, 2011 12:15 pm	2	3216	Last post by aqawwas Sat Apr 02, 2011 11:34 am
UV-stablizer with HPLC-ELSD by Dana » Mon Mar 28, 2011 9:20 am	9	5248	Last post by Dana Fri Apr 01, 2011 8:20 am
Consistent step in baseline on GC/MS by ERA_Erin » Tue Mar 22, 2011 3:04 pm	2	3221	Last post by AICMM Fri Mar 25, 2011 1:55 am
Atorvastatin Conversion factor? by mohammad » Mon Mar 14, 2011 5:57 pm	1	5063	Last post by JGK Mon Mar 14, 2011 7:37 pm
ppm of Carbon from ppm of heptane, etc. by Sandra7 » Wed Mar 09, 2011 9:24 pm	0	2672	Last post by Sandra7 Wed Mar 09, 2011 9:24 pm
Water Activity by mohammad » Sat Mar 05, 2011 1:40 pm	1	3024	Last post by JGK Mon Mar 07, 2011 7:31 pm
Making 100ppm each of heptane & octane in hexane by Sandra7 » Tue Feb 22, 2011 6:10 am	23	8442	Last post by Sandra7 Mon Mar 07, 2011 7:19 pm
Troubles plotting Van Deemter plot, any ideas why? by Shinghan » Fri Feb 25, 2011 12:21 am	4	6123	Last post by Peter Apps Wed Mar 02, 2011 12:16 pm
Technique to get volatile liquids out of the bottle & into a by Sandra7 » Sun Feb 27, 2011 6:05 pm	0	2977	Last post by Sandra7 Sun Feb 27, 2011 6:05 pm
PERKIN ELMER LC-55 SPECTROPHOTOMETER manual wanted by arminda » Sat Feb 26, 2011 4:50 pm	0	2846	Last post by arminda Sat Feb 26, 2011 4:50 pm
HPLC or HILIC for Blood metabolite analysis - Pretreatment by doc21 » Tue May 25, 2010 3:07 pm	4	3948	Last post by doc21 Wed Feb 23, 2011 8:18 pm
Impurity analysis by stuncagil » Sun Feb 13, 2011 9:58 am	5	3768	Last post by lmh Tue Feb 22, 2011 10:26 am
basic idea of ms in case of lc by mostafa » Mon Feb 21, 2011 4:44 pm	2	3135	Last post by lmh Tue Feb 22, 2011 10:16 am
How to prepare this from salt please by Ronaldo » Sat Feb 05, 2011 6:12 pm	12	4151	Last post by tom jupille Sun Feb 20, 2011 12:17 am
rounded peaks in amine analysis by chemistry girl » Thu Feb 03, 2011 8:46 pm	10	4757	Last post by Peter Apps Fri Feb 18, 2011 6:55 am
LOOKING FOR ( ANALYTICAL METHOD FOR HPLC ) by WESAM » Sat Feb 12, 2011 2:31 pm	2	3555	Last post by MaryCarson Tue Feb 15, 2011 3:50 pm
Water by KF_result_w/w by mohammad » Mon Feb 14, 2011 9:12 am	3	3712	Last post by tom jupille Mon Feb 14, 2011 9:16 pm
Peak eluting before the void volume - Clueless by mactavish606 » Thu Feb 10, 2011 3:40 am	9	13161	Last post by tom jupille Fri Feb 11, 2011 8:49 pm
Know Free Online Database for UV-Vis NMR, FT-IR, MS Spectra by Sandra7 » Thu Feb 10, 2011 1:34 pm	3	4047	Last post by willnatalie Fri Feb 11, 2011 3:32 pm
Polarity order of Benzene and Acetophenone by Sandra7 » Tue Feb 08, 2011 6:44 am	11	13515	Last post by Sandra7 Thu Feb 10, 2011 5:44 am
GC questions by srikanthearpina » Mon Feb 07, 2011 10:20 pm	5	3897	Last post by chromatographer1 Tue Feb 08, 2011 1:12 am
effect of pH of mobile phase in HPLC by mritunjai078 » Sun Feb 06, 2011 10:26 am	3	3605	Last post by HW Mueller Mon Feb 07, 2011 8:49 am
GC-TOF-MS detector voltage by badrul » Sat Feb 05, 2011 2:42 pm	8	6573	Last post by mg1773 Tue Jun 09, 2020 5:11 pm
TLC with bodily fluids? by splick209 » Mon Jan 31, 2011 7:37 pm	7	3312	Last post by bisnettrj2 Fri Feb 04, 2011 7:09 am
I am new to Chromatography topic and have a question by Sandra7 » Sun Oct 03, 2010 11:13 pm	7	4593	Last post by AICMM Wed Feb 02, 2011 3:56 am
ChromaTOF-Calibration by chr_user » Wed Jan 26, 2011 4:53 pm	2	3246	Last post by chr_user Thu Jan 27, 2011 4:33 pm
Short chain fatty acid analysis, GC or HPLC? by valin » Sat Jan 22, 2011 11:54 am	3	4455	Last post by Don_Hilton Sun Jan 23, 2011 6:57 pm
Non invasive bicarbonate in tissue? by eaanon01 » Mon Jan 17, 2011 12:56 pm	0	2572	Last post by eaanon01 Mon Jan 17, 2011 12:56 pm
standard for HPLC assay. by kamel » Wed Jan 12, 2011 7:24 pm	3	2997	Last post by MaryCarson Thu Jan 13, 2011 6:52 pm
Antioxidant activities by Dolphin » Wed Jan 12, 2011 2:12 pm	2	2871	Last post by Dolphin Thu Jan 13, 2011 3:47 pm
LC-qqqMS and Metabolites by EvoDyn » Sat Jan 01, 2011 4:32 am	1	2897	Last post by lmh Wed Jan 12, 2011 4:32 pm
Which HPLC column is good for tocopherol / trienol separatio by krisradh1432 » Tue Dec 21, 2010 4:12 am	4	3671	Last post by krisradh1432 Wed Jan 12, 2011 12:48 am
EPA 501.1 by pueblito » Mon Jan 10, 2011 5:40 pm	2	2866	Last post by pueblito Tue Jan 11, 2011 11:44 pm
Need advice on a vacuum pump by hccrriii » Wed Dec 22, 2010 3:12 pm	6	5832	Last post by remesquaddie Wed Jul 06, 2011 5:30 pm
Common name for a chemical by vvreddy » Fri Dec 17, 2010 8:49 am	1	2936	Last post by Don_Hilton Sat Dec 18, 2010 4:06 am
hi by rajkumarkutani » Tue Dec 14, 2010 5:02 pm	1	3191	Last post by DR Tue Dec 14, 2010 6:16 pm
HPLC+RI Detector for Sugar Separation by vanbeld » Sun Dec 12, 2010 9:51 pm	1	3877	Last post by Rob Burgess Tue Dec 14, 2010 3:55 pm
Calibrating Low Pressure Cell by Toshio » Fri Dec 10, 2010 5:55 pm	1	3116	Last post by HPLCCONSULT Fri Dec 10, 2010 8:05 pm
hydrophilic compound elution in liquid chromatography (doubt by pri6886 » Mon Nov 29, 2010 11:06 pm	4	3580	Last post by tom jupille Wed Dec 01, 2010 9:40 pm
HELP* on Serum Vitamin D3/ D2 Measurement by BHORJING » Tue Nov 23, 2010 4:07 pm	3	3425	Last post by tom jupille Wed Nov 24, 2010 8:11 pm
HPLC and mixed mode columns by Analisis » Wed Oct 06, 2010 1:02 pm	5	4236	Last post by juddc Mon Dec 06, 2010 9:29 pm
mass balance of chromatography columns by latkan » Sun Nov 21, 2010 3:06 pm	1	3794	Last post by tom jupille Sun Nov 21, 2010 10:58 pm
How to determine amount of methanol in an aqueous solution? by madroc » Wed Nov 10, 2010 5:21 am	10	6482	Last post by zokitano Mon Nov 15, 2010 3:39 pm

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