Liquid Chromatography

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Ion Chromatography Discussions about IC and related topics Topics: 402	402	1507	Last post Re: Setting retention time wi… by Jofichrom Fri Mar 06, 2026 2:33 pm
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: 120	120	469	Last post Re: High-temp filtration of c… by DR Tue Jan 06, 2026 5:42 pm

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11919 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	88676	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Morphine suphate PR Tablets CU Method by HPLC by KRRISH8 » Sun Mar 17, 2013 7:17 am	1	3963	Last post by KRRISH8 Tue Mar 19, 2013 2:38 pm
Relative migration calculation by lsreedharan » Tue Mar 12, 2013 7:08 pm	2	2807	Last post by lsreedharan Sat Mar 16, 2013 11:22 pm
criteria for intermediate precision by darasc0211 » Sat Mar 16, 2013 8:31 pm	1	1920	Last post by KM-USA Sat Mar 16, 2013 10:58 pm
use of LiBr and DMF in SEC/GPC?? by rick1112 » Mon Aug 18, 2008 4:52 am	4	8438	Last post by dillon0313 Fri Mar 15, 2013 5:25 pm
New method for Lubiprostone by Abadr100 » Wed Mar 13, 2013 5:48 pm	1	2202	Last post by prepcolumn Fri Mar 15, 2013 10:37 am
Service manuals by remesquaddie » Thu Mar 14, 2013 6:26 pm	0	1979	Last post by remesquaddie Thu Mar 14, 2013 6:26 pm
Individual results into one result set in Empower 2 by tritescreename » Thu Mar 14, 2013 3:08 pm	3	3930	Last post by DR Sat Mar 16, 2013 2:31 am
Additives such as Tween 80, Cyclodextrin and pluronics by ivarg » Fri Mar 08, 2013 2:38 pm	3	2134	Last post by danko Thu Mar 14, 2013 10:25 am
Dietary Supplements Advice by microman13 » Wed Mar 13, 2013 9:02 pm	1	2157	Last post by James_Ball Wed Mar 13, 2013 9:30 pm
GPC detector problems by ilyphotocip » Wed Mar 13, 2013 11:23 am	1	1930	Last post by uzman Wed Mar 13, 2013 8:10 pm
Uncertainty of calibration standards by jdelmonte » Wed Mar 13, 2013 12:32 pm	0	1965	Last post by jdelmonte Wed Mar 13, 2013 12:32 pm
CALIBRATION ON CHEMSTATION...HOW TO NOT HAVE TO RUN every ru by johncarrigan » Tue Mar 12, 2013 10:45 am	2	2163	Last post by tom jupille Tue Mar 12, 2013 3:53 pm
Blue Growth by skirchmann » Fri Mar 08, 2013 9:33 pm	5	2226	Last post by nonagon Tue Mar 12, 2013 12:34 pm
Selection of test conc in RS by sharma » Fri Mar 08, 2013 6:52 am	3	2035	Last post by prepcolumn Tue Mar 12, 2013 8:13 am
diols and glycerol by sepscientologist » Fri Mar 08, 2013 11:23 pm	9	3952	Last post by chromatographer1 Mon Mar 11, 2013 11:56 pm
column parameters by GIRI BABU » Mon Mar 11, 2013 4:04 pm	1	4577	Last post by tom jupille Tue Mar 12, 2013 4:01 pm
trifflic acid in trifflic anhydride by Chandresh K. Soni » Fri Mar 08, 2013 4:55 pm	0	1969	Last post by Chandresh K. Soni Fri Mar 08, 2013 4:55 pm
Yellow rubbish removal before HPLC? by micheleee » Thu Mar 07, 2013 10:09 am	8	2407	Last post by shfo Fri Mar 08, 2013 1:09 pm
Linear flow rates - estimating the speed limit? by Procyan » Thu Mar 07, 2013 10:45 pm	1	2186	Last post by tom jupille Fri Mar 08, 2013 2:54 am
Waters 490 by rmccart » Thu Feb 21, 2013 3:23 pm	3	2003	Last post by elsico Thu Mar 07, 2013 9:43 pm
Doxycycline Hyclate Method Development Issues by jmmunson » Thu Mar 07, 2013 9:37 pm	0	2488	Last post by jmmunson Thu Mar 07, 2013 9:37 pm
Cholecalciferol Method Development Issues by jmmunson » Fri Jan 18, 2013 4:20 pm	7	2983	Last post by jmmunson Thu Mar 07, 2013 9:24 pm
how to select in Signal to noise ratio in HPLC by reddyashwin » Thu Mar 07, 2013 12:59 pm	0	4207	Last post by reddyashwin Thu Mar 07, 2013 12:59 pm
what is column chemistry in HILIC column by reddyashwin » Thu Mar 07, 2013 12:53 pm	1	4742	Last post by Camisotro Thu Mar 07, 2013 6:57 pm
Separation of two peaks with the same retention times by josephip » Thu Feb 21, 2013 2:10 pm	3	2418	Last post by Gerhard Kratz Thu Mar 07, 2013 11:49 am
A HILIC Question (...Kinda Sorta....) by adam » Mon Feb 18, 2013 4:35 am	5	2807	Last post by Jimi Thu Mar 07, 2013 5:31 am
Varian 325 Firmware by simon_hunter » Wed Mar 06, 2013 6:47 pm	1	2471	Last post by tom jupille Wed Mar 06, 2013 7:49 pm
what will happend carbon loading high are low in c18 columns by reddyashwin » Wed Mar 06, 2013 3:36 pm	1	4272	Last post by DR Wed Mar 06, 2013 11:18 pm
SDS and high salt concetration probes in HiTrap Protein G HP by Ana12 » Tue Mar 05, 2013 10:46 am	1	2526	Last post by Gerhard Kratz Wed Mar 06, 2013 8:30 am
Supplier of Varian/Agilent instrument parts in USA? by DoryFish » Thu Feb 14, 2013 6:37 am	12	41287	Last post by marlenl Tue Mar 05, 2013 5:11 pm
Difference between the normal and end capped columns by reddyashwin » Mon Mar 04, 2013 4:25 pm	2	20010	Last post by Gerhard Kratz Tue Mar 05, 2013 8:57 am
Empower processing everything in duplicate by NYYFan » Tue Mar 05, 2013 1:28 am	3	3315	Last post by DR Tue Mar 05, 2013 2:22 pm
Saturation of Absorbance Detectors? How much is too much? by dkreller » Tue Feb 26, 2013 12:08 am	8	9189	Last post by tom jupille Mon Mar 04, 2013 11:22 pm
Question about scaling up methods by Mike H. » Fri Mar 01, 2013 5:52 pm	5	3099	Last post by Mike H. Mon Mar 04, 2013 4:49 pm
Validation_RSD variation by montana » Sat Mar 02, 2013 9:13 pm	6	3559	Last post by montana Mon Mar 04, 2013 4:26 pm
Ethoxyquin in shrimps LOQ 0,01ppm by orelie » Mon Mar 04, 2013 12:43 pm	0	3698	Last post by orelie Mon Mar 04, 2013 12:43 pm
why caffiene and acetone used in HPLC calibration by reddyashwin » Thu Feb 28, 2013 4:16 pm	1	6789	Last post by tom jupille Fri Mar 01, 2013 12:22 am
Macherey Nagel PolarTec C18 - anyone tried these? by Rob Burgess » Thu Feb 28, 2013 4:43 pm	0	2482	Last post by Rob Burgess Thu Feb 28, 2013 4:43 pm
Limit of Detection (LoD), and Limit of Quantitation by montana » Tue Feb 26, 2013 6:24 pm	4	3020	Last post by lmh Wed Feb 27, 2013 4:40 pm
Forced degradation study-API by jupallisreenivas » Wed Feb 27, 2013 12:15 pm	1	2104	Last post by prepcolumn Wed Feb 27, 2013 1:25 pm
Degasser starving pump at 1 mL/min by DoryFish » Wed Feb 27, 2013 5:41 am	1	2186	Last post by Gerhard Kratz Wed Feb 27, 2013 10:34 am
Column storage may be causing trouble? by ABV » Tue Jan 08, 2013 11:12 am	15	4766	Last post by ABV Wed Feb 27, 2013 10:33 am
Pump Problem with Acetonitrile by syx » Tue Sep 13, 2011 9:41 am	18	9847	Last post by syx Wed Feb 27, 2013 2:52 am
Binary pump applications by aldehyde » Mon Feb 25, 2013 11:13 pm	7	4553	Last post by aldehyde Tue Feb 26, 2013 7:41 pm
Printing Spectra with OpenLab for Chemstation IR by e.chappard » Tue Feb 26, 2013 11:41 am	0	2549	Last post by e.chappard Tue Feb 26, 2013 11:41 am
UHPLC and Pinnacle PCX by dr_Pyrex » Mon Feb 25, 2013 6:21 pm	2	2164	Last post by tsoukalas1 Tue Feb 26, 2013 8:18 am
CAD baseline troubles by Nell001 » Tue Oct 23, 2012 9:58 pm	3	2468	Last post by Nell001 Mon Feb 25, 2013 10:34 pm
Alfacalcidol low concentration detection by HPLC 0.5 ng by raghdaa » Mon Feb 25, 2013 12:31 pm	1	2794	Last post by tom jupille Mon Feb 25, 2013 8:20 pm
CALIBARATION FOR FORMULAS CONTAINING 4 SOLVENTS by PrithiRao » Mon Feb 25, 2013 8:13 pm	9	2557	Last post by dblux_ Wed Feb 27, 2013 7:14 pm
Clindamycin with benzoyl peroxide by BB! » Mon Jun 27, 2011 10:39 am	10	4119	Last post by Vlad Orlovsky Mon Feb 25, 2013 4:58 pm

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