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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11916 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	83480	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
LiChrospher RP-18 and Select B with particles < 5 µm by LCFan » Wed Dec 07, 2011 4:30 pm	3	2393	Last post by unmgvar Thu Dec 08, 2011 7:07 pm
Waters HPLC system by s10pd021 » Thu Dec 08, 2011 12:47 pm	3	2709	Last post by unmgvar Thu Dec 08, 2011 6:35 pm
RRF IN HPLC by ashvin143smit » Thu Dec 08, 2011 2:53 pm	4	4982	Last post by paulw Thu Dec 08, 2011 7:01 pm
Looking for a column compatible with fat-soluble vitamins by yolevins » Mon Nov 21, 2011 6:39 am	4	2116	Last post by idlewildq Thu Dec 08, 2011 8:13 am
In Line Filter Purchase by ZeroAir » Wed Nov 30, 2011 11:35 pm	5	2141	Last post by idlewildq Thu Dec 08, 2011 8:11 am
activation of a new column by mrettis » Fri Dec 02, 2011 8:37 pm	4	8116	Last post by Jack Silver Thu Dec 08, 2011 2:23 am
HPLC Related substance analysis by using Slope & intercept by ananthjkumar » Tue Dec 06, 2011 10:36 am	5	3288	Last post by pharmaguy Wed Dec 07, 2011 4:48 pm
USP LOD glass ware part number? by pankajbhumireddy » Wed Dec 07, 2011 2:57 pm	0	1907	Last post by pankajbhumireddy Wed Dec 07, 2011 2:57 pm
Shimadzu Prominence issue by qfiviera » Fri Dec 02, 2011 2:37 pm	1	2294	Last post by Mattias Wed Dec 07, 2011 10:00 am
"chalk talk" on causes of peak tailing by tom jupille » Tue Dec 06, 2011 9:24 pm	1	9622	Last post by tom jupille Tue Dec 06, 2011 9:25 pm
Acquity Organizer Z-axis error, Anyone solved one? by russmehl » Thu Oct 06, 2011 6:43 pm	4	6364	Last post by russmehl Tue Dec 06, 2011 8:05 pm
Method for seprating "dirty" environmental samples by mrgb89 » Sun Nov 27, 2011 5:13 pm	3	5034	Last post by Don Shelly Wed Dec 07, 2011 6:58 pm
how to solubilize lyophilized samples? by ambre » Tue Dec 06, 2011 2:00 pm	1	4162	Last post by ScottHorn Tue Dec 06, 2011 4:22 pm
Check valves and 100% acetonitrile by Mattias » Fri Dec 02, 2011 7:45 am	6	3477	Last post by grumbledook Tue Dec 06, 2011 4:05 pm
peak appearance by ambre » Tue Dec 06, 2011 1:57 pm	0	1632	Last post by ambre Tue Dec 06, 2011 1:57 pm
long equilibration process by ether » Fri Dec 02, 2011 3:13 am	2	1756	Last post by Bintang Tue Dec 06, 2011 11:34 am
Scaling UHPLC separations to older HPLC systems by tom jupille » Mon Dec 05, 2011 9:22 pm	0	1885	Last post by tom jupille Mon Dec 05, 2011 9:22 pm
peak to valley ratio by solidgy » Fri Dec 02, 2011 8:05 pm	3	9126	Last post by HPLCaddict Mon Dec 05, 2011 3:48 pm
PEAKNET by cantazzurro » Mon Dec 05, 2011 1:56 pm	5	3222	Last post by lgchrom Mon Jan 09, 2012 8:39 am
Confussion about mass detectors (ELS) by jbwz17 » Fri Dec 02, 2011 4:25 pm	4	2052	Last post by sepscientologist Fri Dec 02, 2011 6:10 pm
Negative Baseline Drift by jayeeta.pahan » Fri Dec 02, 2011 9:37 am	1	2189	Last post by tom jupille Fri Dec 02, 2011 5:30 pm
phenomenex columns by prepcolumn » Wed Nov 23, 2011 11:53 am	12	4617	Last post by oceancolorHPLC Fri Dec 02, 2011 3:39 pm
Peak splitting in HPLC by meadowlane » Sat Nov 12, 2011 11:21 pm	7	4009	Last post by Maheswaera Reddy Fri Dec 02, 2011 9:50 am
HP1050 VWD Heat Exchange Capillary Connection Snapped by nealonc » Thu Dec 01, 2011 5:51 pm	1	1729	Last post by tom jupille Fri Dec 02, 2011 1:16 am
what's the best way to condition a brand new column? by hplctroubleshooting » Wed Nov 30, 2011 2:46 pm	8	4483	Last post by hplctroubleshooting Thu Dec 01, 2011 9:26 pm
Low pH modifiers: TFA vs. Perchloric Acid - Baseline Quality by Rob Burgess » Thu Dec 01, 2011 4:23 pm	0	2178	Last post by Rob Burgess Thu Dec 01, 2011 4:23 pm
How to deal with system peaks - 2 by goran123 » Mon Nov 28, 2011 10:47 am	4	2086	Last post by goran123 Thu Dec 01, 2011 8:25 am
buffered eluents by WillyOne » Mon Nov 28, 2011 7:38 pm	7	1886	Last post by WillyOne Wed Nov 30, 2011 5:36 pm
LOD LOQ by nageshwar » Fri Jun 12, 2009 4:31 pm	9	3522	Last post by vishnu Wed Nov 30, 2011 5:16 pm
Drift and change of response factor (aminosalicylic acid) by Mattias » Thu Nov 24, 2011 7:45 am	7	1803	Last post by zokitano Wed Nov 30, 2011 8:00 am
Quantitation of sodium ion in water by cody84 » Mon Nov 28, 2011 12:58 pm	6	2507	Last post by Markus Laeubli, Metrohm Tue Nov 29, 2011 4:13 pm
Shimadzu Prominence LC solution error message by qfiviera » Wed Nov 09, 2011 4:20 pm	6	6014	Last post by qfiviera Wed Nov 30, 2011 9:58 am
Nitrite in IC by jpbrady » Mon Nov 21, 2011 9:45 am	7	8074	Last post by jpbrady Tue Nov 29, 2011 12:18 am
what is mean by k prime? by vin_3539 » Wed Aug 03, 2011 7:19 am	4	9425	Last post by arpit4krish Sun Nov 27, 2011 8:36 pm
Pressure limits of columns by LCFan » Sun Nov 27, 2011 4:39 pm	1	1936	Last post by tom jupille Sun Nov 27, 2011 7:23 pm
Sugars analysis by tony83 » Sat Nov 26, 2011 6:46 pm	1	1465	Last post by tom jupille Sat Nov 26, 2011 8:19 pm
milnacipran analysis by hplc by vvreddy » Sat Nov 26, 2011 1:49 pm	0	1289	Last post by vvreddy Sat Nov 26, 2011 1:49 pm
Tacrolimus HPLC by jijualex » Sat Nov 19, 2011 11:51 am	3	2868	Last post by Fernando Fri Nov 25, 2011 12:52 pm
SEC column for protein samples containing pluronic by a17thony » Fri Nov 04, 2011 4:48 pm	7	2620	Last post by Kristof Thu Nov 24, 2011 4:32 pm
Two Phosopholipds, same retention time... by glocke12 » Tue Nov 22, 2011 2:21 am	5	1501	Last post by unmgvar Thu Nov 24, 2011 4:19 pm
HPLC Hi-plex Pb by yummytis » Thu Nov 24, 2011 5:05 am	1	1761	Last post by unmgvar Thu Nov 24, 2011 3:55 pm
Reduce the memory effect by Jean85 » Tue Nov 22, 2011 10:42 am	2	1275	Last post by DJtech Thu Nov 24, 2011 3:54 pm
Peaks in established HPLC assay now not resolving by Merrin » Fri Nov 18, 2011 2:28 am	5	1827	Last post by Merrin Thu Nov 24, 2011 12:28 am
Forced degradation on oil based soft gel capsule fill by kimy » Tue Nov 22, 2011 1:38 am	3	1680	Last post by paulw Wed Nov 23, 2011 9:38 pm
TFA modifier on C18- how much washing to remove? by Jack Silver » Sun Nov 20, 2011 1:07 pm	2	2852	Last post by Jack Silver Wed Nov 23, 2011 8:41 pm
preservative validation by gundaashok1 » Sun Nov 20, 2011 11:15 am	5	2864	Last post by paulw Wed Nov 23, 2011 7:54 pm
Column cleaning for NH2 column by yazmer » Wed Nov 23, 2011 12:20 am	1	2631	Last post by tom jupille Wed Nov 23, 2011 4:26 am
Formaldehyde detection by kbrodw01 » Sat Nov 19, 2011 6:56 am	5	3129	Last post by oscarBAL Wed Nov 23, 2011 3:01 am
To Empower experts by WillyOne » Tue Nov 22, 2011 6:45 pm	5	2869	Last post by WillyOne Thu Nov 24, 2011 12:34 pm
531.2 Standards by eauchem » Wed Nov 16, 2011 5:50 pm	1	1554	Last post by mckrause Tue Nov 22, 2011 4:13 pm

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