Liquid Chromatography

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11910 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	62593	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Dionex LC25 chromatography peak problem by Imran » Wed Jan 16, 2008 1:06 pm	2	1689	Last post by goxy43 Wed Jan 16, 2008 2:05 pm
HPLC Books for newbies by tirabasso.1 » Tue Jan 15, 2008 9:30 pm	4	2990	Last post by tirabasso.1 Wed Jan 16, 2008 1:28 pm
Problems using analytical method for microbore column by ballz2wallz » Thu Jan 10, 2008 4:06 pm	13	2497	Last post by goxy43 Wed Jan 16, 2008 8:12 am
separation of diclofenac and misoprostol by HPLC by banala_b » Wed Jan 16, 2008 2:32 am	0	1952	Last post by banala_b Wed Jan 16, 2008 2:32 am
Removal of water from solvent by Mattias » Wed Jan 09, 2008 2:02 pm	17	10953	Last post by Uwe Neue Wed Jan 16, 2008 12:13 am
agilent 1100 uv by olivia » Fri Jan 11, 2008 12:01 am	3	2025	Last post by mbicking Tue Jan 15, 2008 3:52 pm
Peak area variations by albragi » Mon Jan 14, 2008 2:27 pm	5	3158	Last post by JM Tue Jan 15, 2008 10:25 am
pH gradient by olivia » Tue Jan 15, 2008 3:09 am	1	1466	Last post by tom jupille Tue Jan 15, 2008 4:02 am
Drylab robustness by Robert Brightman » Mon Jan 14, 2008 9:32 pm	0	1505	Last post by Robert Brightman Mon Jan 14, 2008 9:32 pm
hplc column stability by olivia » Sat Jan 12, 2008 5:44 pm	1	1695	Last post by Uwe Neue Sat Jan 12, 2008 5:57 pm
how to clean my frit as clean as possible by moon704520 » Wed Jan 09, 2008 5:12 am	9	7264	Last post by Uwe Neue Sat Jan 12, 2008 5:38 pm
Gradient Mystery by Sallybeetle » Wed Jan 09, 2008 11:40 pm	2	1779	Last post by Sallybeetle Sat Jan 12, 2008 2:06 am
Antioxidant Analysis by wrighty » Mon Jan 07, 2008 10:31 am	2	1823	Last post by Bryan Evans Thu Jan 10, 2008 2:21 pm
Column for Cationic Surfactants by adam » Mon Jan 07, 2008 10:04 pm	5	2254	Last post by XL Thu Jan 10, 2008 7:44 am
New column by vlaban » Fri Jan 04, 2008 1:44 pm	8	2445	Last post by Uwe Neue Thu Jan 10, 2008 1:41 am
System Suitability Acceptance Criteria by Sallybeetle » Tue Jan 08, 2008 10:49 pm	4	13215	Last post by Bruce Hamilton Thu Jan 10, 2008 12:04 am
Electrical spikes on the shoulder of peaks in Dionex DX 120 by sandy1977 » Wed Jan 09, 2008 5:48 pm	0	1894	Last post by sandy1977 Wed Jan 09, 2008 5:48 pm
basic question by mk12 » Wed Dec 12, 2007 10:04 pm	20	5291	Last post by randy Wed Jan 09, 2008 3:21 pm
Internal Standard for Paracetamol Assay by Merrin » Tue Jan 08, 2008 12:09 am	1	2207	Last post by Kazimierz Wed Jan 09, 2008 11:38 am
Shimadzu HPLC Spares by sivaraman » Wed Jan 09, 2008 5:46 am	0	1775	Last post by sivaraman Wed Jan 09, 2008 5:46 am
new drug applications by olivia » Tue Jan 08, 2008 11:06 pm	2	1488	Last post by olivia Wed Jan 09, 2008 1:21 am
excess adsorption isotherm by olivia » Tue Jan 08, 2008 11:08 pm	0	1471	Last post by olivia Tue Jan 08, 2008 11:08 pm
HPLC Column Performance Check by Milosh » Fri Nov 23, 2007 2:34 pm	16	6543	Last post by Bruce Hamilton Tue Jan 08, 2008 9:50 pm
N, efficiency in gradient run by tilly » Thu Jan 03, 2008 6:32 pm	7	2566	Last post by Uwe Neue Tue Jan 08, 2008 6:18 pm
Derivatization Cysteamine and Cysteine for HPLC by tonja79 » Tue Jan 08, 2008 9:35 am	1	1714	Last post by HW Mueller Tue Jan 08, 2008 1:04 pm
Size of negative peaks in RI detection. by chayyl » Sun Dec 30, 2007 10:44 am	3	2163	Last post by HW Mueller Tue Jan 08, 2008 12:27 pm
Assay of API by Nisse » Fri Jan 04, 2008 3:28 pm	3	2258	Last post by Nisse Mon Jan 07, 2008 3:32 pm
How can we select the mobile phase for acidic and basic comp by GURU » Wed Jan 02, 2008 7:51 am	2	1899	Last post by AdrianF Mon Jan 07, 2008 2:49 pm
Acidify sample before Oasis column extraction? by PMDOC » Fri Jan 04, 2008 8:53 pm	2	2266	Last post by bert Mon Jan 07, 2008 11:31 am
naproxen and so on by krystynakk » Wed Jan 02, 2008 11:50 pm	4	2447	Last post by XL Mon Jan 07, 2008 3:59 am
Help on ghost peak please by moonchips » Fri Dec 28, 2007 4:01 pm	13	5437	Last post by Bruce Hamilton Mon Jan 07, 2008 3:00 am
ammonium bicarbonate Vs ammonia buffer by subha » Sat Jan 05, 2008 1:38 pm	5	10448	Last post by subha Mon Jan 07, 2008 1:17 am
HP 1050 Degasser by Sallybeetle » Sat Jan 05, 2008 1:08 am	3	2575	Last post by promochrom Mon Jan 07, 2008 12:56 am
Column COA by lcguy1 » Mon Dec 17, 2007 3:05 pm	13	3983	Last post by Uwe Neue Sat Jan 05, 2008 9:59 pm
about 10 bar after changing the purge frit? by moonchips » Wed Jan 02, 2008 9:25 pm	4	2075	Last post by attila01 Fri Jan 04, 2008 8:27 pm
Noise level in Fast LC by VEBA » Thu Jan 03, 2008 9:56 pm	3	1925	Last post by reysolutions Fri Jan 04, 2008 2:32 pm
not sure how to use amino(NH2) column by moon704520 » Thu Jan 03, 2008 2:40 am	4	3885	Last post by Bryan Evans Fri Jan 04, 2008 2:27 pm
detectors by olivia » Tue Jan 01, 2008 10:38 pm	3	1724	Last post by olivia Fri Jan 04, 2008 1:21 am
Start/ready signal, 1100 vs 1200 by rnelson » Wed Dec 26, 2007 6:24 pm	6	2715	Last post by tom jupille Fri Jan 04, 2008 12:03 am
Flow rate for Coulochem III Detector by Kazimierz » Thu Jan 03, 2008 4:00 pm	1	1556	Last post by tom jupille Fri Jan 04, 2008 12:02 am
packing materials for hplc grade chemicals by gprane » Wed Jan 02, 2008 6:12 am	3	1847	Last post by Bruce Hamilton Thu Jan 03, 2008 7:05 pm
two questions by moon704520 » Thu Jan 03, 2008 11:13 am	3	1653	Last post by Consumer Products Guy Thu Jan 03, 2008 3:02 pm
Apparent pH and gradient pH by wanda50 » Wed Jan 02, 2008 6:17 pm	5	2918	Last post by wanda50 Thu Jan 03, 2008 2:25 pm
coloumn storage by dani nurmawan » Thu Jan 03, 2008 12:24 pm	3	1766	Last post by DR Thu Jan 03, 2008 2:03 pm
Wash gradients by air » Thu Dec 20, 2007 12:15 pm	7	4222	Last post by Jackus Thu Jan 03, 2008 12:36 pm
Linearity and non-linearity question by bartjoosen » Tue Dec 11, 2007 9:49 am	22	6047	Last post by vep Wed Jan 02, 2008 8:25 pm
Backpressure on Agilent column by vep » Wed Jan 02, 2008 3:13 pm	5	1992	Last post by Bryan Evans Wed Jan 02, 2008 7:44 pm
Dirt in the UV detection cell by casaciofcarmelina » Thu Dec 06, 2007 11:23 am	7	2637	Last post by Jackus Wed Jan 02, 2008 10:51 am
Agilent vs Waters: Using a Reference Wavelength by Tammy L Sell » Mon Dec 10, 2007 2:43 pm	5	4782	Last post by Jackus Wed Jan 02, 2008 10:46 am
Extraction for acidic and basic compounds by GURU » Wed Jan 02, 2008 8:02 am	0	1832	Last post by GURU Wed Jan 02, 2008 8:02 am

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