Liquid Chromatography

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11906 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	64253	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

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which lithium salt is UV transparent? by GC_Cf » Sat Jul 23, 2011 2:45 am	7	1783	Last post by HW Mueller Sun Jul 24, 2011 8:37 am
The cake pan I used in the lab to carry vol flasks and sampl by Sandra7 » Sun Jul 24, 2011 12:38 am	6	4927	Last post by Sandra7 Tue Aug 02, 2011 5:42 pm
Measure system volume (dwell volume) by ares » Thu Jul 21, 2011 5:23 pm	6	3076	Last post by tom jupille Sat Jul 23, 2011 6:32 am
Purification Problem: Amine-pyrimidine by usuchrom » Wed Jul 20, 2011 2:42 pm	4	1623	Last post by tom jupille Fri Jul 22, 2011 7:19 pm
sulphonated polymer retantion on SAX column by lynzjm » Fri Jul 22, 2011 9:35 am	1	1401	Last post by tom jupille Fri Jul 22, 2011 7:14 pm
Relative retention of peptides in SCX-- revisited by DJ » Thu Jul 21, 2011 1:41 am	2	1449	Last post by Andy Alpert Fri Jul 22, 2011 6:00 pm
When to end HPLC run after target peak appears? by Edde » Thu Jul 21, 2011 9:37 am	7	2997	Last post by Edde Fri Jul 22, 2011 4:28 pm
HPLC recommendations needed! by mixmixi » Thu Jul 21, 2011 10:35 am	7	1639	Last post by Hollow Fri Jul 22, 2011 9:44 am
HILIC Gradient troubles by agrubert » Wed Jul 20, 2011 7:38 pm	7	2724	Last post by agrubert Thu Jul 21, 2011 5:33 pm
Alternatives to freeze-driers/ Biotage V10??? by ns1 » Thu Jul 21, 2011 2:40 pm	5	5875	Last post by Gilson_PLC2020 Wed Aug 03, 2011 2:26 pm
HPLC-EAT, A free tool to profile the greenness of LC methods by Yassergaber2007 » Thu Jul 21, 2011 11:57 am	0	6374	Last post by Yassergaber2007 Thu Jul 21, 2011 11:57 am
Ion Exchange Chromatography elution order question. by vimal.s » Wed Jul 20, 2011 6:33 am	1	5812	Last post by tom jupille Wed Jul 20, 2011 6:59 pm
waters/empower2 issue by jeremyatwsu » Wed Jul 20, 2011 4:47 am	3	2696	Last post by jeremyatwsu Sun Jul 31, 2011 7:37 pm
Vo and Vt standards for FPLC by burroa03 » Tue Jul 19, 2011 3:51 pm	3	2039	Last post by Andy Alpert Wed Jul 20, 2011 2:22 pm
trying to connect an alltech 3300 ELSD to an Agilent HPLC... by lynzjm » Tue Jul 19, 2011 3:30 pm	3	2985	Last post by lynzjm Wed Jul 20, 2011 12:58 pm
Placebo Interference by sank_yb81 » Sat Jul 16, 2011 4:14 pm	5	2273	Last post by sank_yb81 Wed Jul 20, 2011 10:50 am
Shimadzu 2010 retention time moving.. by rams » Sun Jul 17, 2011 4:39 pm	3	1891	Last post by rahul pant Wed Jul 20, 2011 4:12 am
Chlorogenic Acid in Artichoke Leaf Extract by Judith Morales » Tue Jul 19, 2011 11:58 pm	0	1953	Last post by Judith Morales Tue Jul 19, 2011 11:58 pm
Accela UPLC by reuvenk » Wed Oct 20, 2010 5:51 pm	10	4938	Last post by Mike in Seattle Tue Jul 19, 2011 10:22 pm
Separating unwanted ion pairs by lperelman » Tue Jul 19, 2011 9:43 pm	0	1713	Last post by lperelman Tue Jul 19, 2011 9:43 pm
Suitability of triethylammonium acetate for +APCI by stacy2216 » Tue Jul 19, 2011 3:44 pm	1	1793	Last post by kerri Wed Jul 20, 2011 9:43 pm
matrix matched calibration problem by Edde » Mon Jul 11, 2011 3:20 am	12	3002	Last post by Edde Tue Jul 19, 2011 1:39 pm
ethyl acetate as a normal phase eluent? by hfredricks » Thu Jul 14, 2011 2:33 pm	10	5555	Last post by Antje_Traub Tue Jul 19, 2011 1:12 pm
Purity Factor and use of PDA by Juan2011 » Mon Jul 18, 2011 1:17 pm	1	1941	Last post by tom jupille Mon Jul 18, 2011 7:09 pm
thanks by burak » Fri Jul 15, 2011 7:25 am	4	2182	Last post by Don_Hilton Wed Jul 20, 2011 12:53 am
TotalChrom Manual Integration by dxbecker » Mon Jul 18, 2011 6:09 pm	5	6091	Last post by h20labs Mon Aug 01, 2011 5:00 pm
Same Retention Time?? by wolfman1697 » Wed Jul 13, 2011 2:07 am	22	5915	Last post by unmgvar Sun Jul 17, 2011 6:42 pm
waters 2465 electrochemical detector by sofiane » Sun Jul 17, 2011 6:25 pm	0	2371	Last post by sofiane Sun Jul 17, 2011 6:25 pm
Please help me in solving wavelength issue by pakhurimehta » Thu Jul 14, 2011 11:25 am	5	2290	Last post by WillyOne Sun Jul 17, 2011 10:35 am
Running a sample on two different columns by jeneticclone » Thu Jul 14, 2011 5:43 pm	2	1869	Last post by tom jupille Thu Jul 14, 2011 9:14 pm
napthalene in honey by burak » Thu Jul 14, 2011 1:38 pm	3	2022	Last post by tlahren Thu Jul 14, 2011 6:53 pm
Please help me, help me please, to solve my problems in HPLC by katydinh » Wed Jul 13, 2011 6:27 am	3	2004	Last post by katydinh Thu Jul 14, 2011 3:13 am
waters UPLC fitting by benmaskrey » Wed Jul 13, 2011 11:41 am	8	3790	Last post by Lusby43 Wed Jul 13, 2011 11:58 pm
Experience with replacement of Waters 2475 lamp? by dkreller » Mon Nov 08, 2010 9:54 pm	6	2842	Last post by remesquaddie Wed Jul 13, 2011 11:16 pm
1100 pressure fluctuation by sepscientologist » Wed Jul 06, 2011 10:31 pm	7	2969	Last post by sepscientologist Wed Jul 13, 2011 8:45 pm
How to reduce ferrous ion interference during assay by HPLC? by samarthan » Wed Jul 13, 2011 3:04 pm	0	1627	Last post by samarthan Wed Jul 13, 2011 3:04 pm
column chrom by Durga malleswar » Tue Jul 12, 2011 9:29 am	3	1654	Last post by HW Mueller Wed Jul 13, 2011 9:17 am
PE Iris by mmegliol » Wed Jul 13, 2011 3:11 am	0	1569	Last post by mmegliol Wed Jul 13, 2011 3:11 am
Metrohm 761 IC by ilawrence » Tue Jul 05, 2011 7:30 am	4	7064	Last post by ilawrence Wed Jul 13, 2011 2:44 am
Why the changes in pH of buffer? by Sazabi » Tue Jul 12, 2011 9:20 pm	1	1411	Last post by sepscientologist Tue Jul 12, 2011 10:10 pm
Regenerating polyhydroxyethyl columns by DJ » Sun Jul 10, 2011 10:16 pm	6	1820	Last post by Andy Alpert Tue Jul 12, 2011 8:44 pm
Is there any method to determine Dimethylamine by TLC??? by vishnu » Wed Jul 06, 2011 4:36 pm	13	2653	Last post by tom jupille Tue Jul 12, 2011 6:59 pm
is there a criteria for carryover peaks? by flora0975 » Fri Jul 08, 2011 5:02 pm	11	6995	Last post by tom jupille Tue Jul 12, 2011 6:57 pm
Injecting 5-10µL water onto ChiralPak AD-H Chiral Columns by Rob Burgess » Tue Jul 12, 2011 3:35 pm	2	2437	Last post by tom jupille Tue Jul 12, 2011 6:45 pm
UPLC Transfer by shaun78 » Thu Jun 23, 2011 5:18 pm	2	1889	Last post by krickos Tue Jul 12, 2011 5:29 pm
What is turning my methanol yellow/orange?? by Trishia » Tue Jul 05, 2011 2:30 pm	15	7992	Last post by Trishia Tue Jul 12, 2011 4:13 pm
ZORBAX Carbohydrate from Agilent - Help please by patomb » Tue Jul 12, 2011 3:43 pm	5	3842	Last post by sepscientologist Thu Jul 14, 2011 4:37 pm
Chem Station Help - Again by H34ds » Thu Jul 01, 2010 9:11 am	6	3536	Last post by DSP007 Tue Jul 12, 2011 2:39 pm
Mistery-Peak area 1/3 now by saioa » Mon Jul 11, 2011 8:34 am	3	1754	Last post by analyticalstudent Tue Jul 12, 2011 12:15 pm
vitamin K by rubypharma » Sat Jul 02, 2011 10:06 pm	2	1490	Last post by bomberang Tue Jul 12, 2011 5:23 am

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