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cleaning method for nonionic surfactant with derivatization
by parsely10 » Wed Aug 03, 2011 4:18 am
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2
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1297
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Last post by parsely10
Mon Aug 08, 2011 6:01 pm
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Separation of ethanolamine and degradation products
by grégoire » Thu Aug 04, 2011 12:46 pm
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3
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2095
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Last post by Bintang
Mon Aug 08, 2011 12:32 pm
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Simple question about response factor
by Perreman » Fri Aug 05, 2011 6:54 am
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3
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1512
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Last post by lmh
Mon Aug 08, 2011 9:14 am
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Maximum injection on HPLC column?
by Josh85 » Mon Jun 08, 2009 1:07 pm
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10
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13432
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Last post by Karen01
Sun Aug 07, 2011 12:50 am
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Replace Octanesulfonic acid as mobile phase
by kyyk » Thu Aug 04, 2011 7:00 am
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6
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3519
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Last post by kyyk
Sat Aug 06, 2011 1:22 am
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ceteth 20
by scio2 » Thu Aug 04, 2011 10:32 pm
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1
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1649
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Last post by Consumer Products Guy
Fri Aug 05, 2011 9:39 pm
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Filters
by fpcwsr » Fri Aug 05, 2011 7:23 pm
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0
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1309
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Last post by fpcwsr
Fri Aug 05, 2011 7:23 pm
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Unknown, suspected contamination problem in HPLC
by Edde » Thu Aug 04, 2011 2:54 am
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8
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2287
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Last post by Edde
Fri Aug 05, 2011 3:51 pm
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how to detect formic acid and/or formaldehyde?
by eooxx » Wed Jan 26, 2011 7:42 pm
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9
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4844
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Last post by Tom Waeghe
Fri Aug 05, 2011 2:38 pm
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Peak Split for Stavudine
by vvreddy » Fri Aug 05, 2011 6:39 am
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4
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1486
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Last post by Peter Apps
Fri Aug 05, 2011 2:00 pm
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Milnacipran enantioseparation
by vvreddy » Fri Aug 05, 2011 11:48 am
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0
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1300
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Last post by vvreddy
Fri Aug 05, 2011 11:48 am
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pKa same as your pH of mobile phase?
by ldcarthy » Thu Aug 04, 2011 8:50 am
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4
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1547
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Last post by HW Mueller
Fri Aug 05, 2011 9:39 am
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Best way to quantitate low levels of Formic Acid
by Karen01 » Thu Aug 04, 2011 2:01 pm
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2
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1456
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Last post by Consumer Products Guy
Thu Aug 04, 2011 10:05 pm
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Unidentified peak in RI detector
by nzo514 » Wed Aug 03, 2011 2:14 pm
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2
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1559
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Last post by Chromatographer2010
Thu Aug 04, 2011 5:10 pm
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Perplexing HPLC issue - area of analyte peaks halved
by hplctroubleshooting » Mon Jul 18, 2011 4:04 pm
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9
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3845
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Last post by Chromatographer2010
Thu Aug 04, 2011 4:58 pm
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C18 column query
by cherry140784 » Wed Aug 03, 2011 5:39 am
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2
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1798
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Last post by H.Thomas
Thu Aug 04, 2011 9:19 am
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Stability Indicating Assay
by sarasst » Wed Aug 03, 2011 10:39 pm
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1
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1579
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Last post by tom jupille
Thu Aug 04, 2011 7:48 am
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USP system suitability criteria
by gtma » Thu Apr 28, 2011 4:56 pm
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11
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11369
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Last post by adeerre
Thu Aug 04, 2011 1:48 am
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HPLC acetaminophen tablets assay
by adeerre » Wed Aug 03, 2011 11:28 pm
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2
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1950
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Last post by adeerre
Thu Aug 04, 2011 1:38 am
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peak in blank in HPLC-CAD separation
by meadowlane » Wed Aug 03, 2011 8:14 pm
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1
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1894
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Last post by sepscientologist
Wed Aug 03, 2011 9:55 pm
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Calculation using Relative response factor and molecular wt.
by abheenaik » Mon Aug 01, 2011 6:11 pm
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5
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4754
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Last post by Murugan Saravanan
Wed Aug 03, 2011 1:38 pm
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CAD flow
by tshabos » Wed Aug 03, 2011 12:42 pm
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0
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1781
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Last post by tshabos
Wed Aug 03, 2011 12:42 pm
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Suggestions on 'scout gradient' and solvents for organic lab
by seravitae » Mon Aug 01, 2011 4:49 am
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5
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1696
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Last post by seravitae
Wed Aug 03, 2011 8:08 am
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HPLC with electrochemical detector
by sofiane » Tue Jul 26, 2011 6:15 pm
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1
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2010
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Last post by Markus Laeubli, Metrohm
Wed Aug 03, 2011 7:14 am
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unexpected area increase in hplc
by ramvaka » Tue Aug 02, 2011 2:23 am
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4
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1901
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Last post by tom jupille
Tue Aug 02, 2011 8:47 pm
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Effect of flow rate on peak area
by chandra6 » Tue Aug 02, 2011 6:55 pm
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1
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1356
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Last post by DR
Tue Aug 02, 2011 8:06 pm
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Empower software issue?
by rdpowell » Tue Aug 02, 2011 7:55 pm
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14
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8247
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Last post by rdpowell
Fri Aug 05, 2011 7:17 pm
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vitamin D on LC TQ-MS?
by maria scjut » Fri Jul 29, 2011 5:15 pm
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2
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1251
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Last post by maria scjut
Tue Aug 02, 2011 3:41 pm
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Partisphere C-18 HPLC column shortage?
by raza bal » Tue Aug 02, 2011 1:54 pm
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0
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1107
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Last post by raza bal
Tue Aug 02, 2011 1:54 pm
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Instrument method stop?
by rdpowell » Thu Jul 28, 2011 4:18 pm
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6
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1555
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Last post by rdpowell
Tue Aug 02, 2011 1:46 pm
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Can anyone offer me a method for cefixime?
by pecurie » Sat Jul 30, 2011 3:48 pm
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3
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1115
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Last post by Murugan Saravanan
Tue Aug 02, 2011 11:52 am
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How Calculate Total impuriteis?
by Parham » Mon Aug 01, 2011 5:27 am
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3
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1231
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Last post by DSP007
Tue Aug 02, 2011 6:15 am
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Methylparben USP34
by GCHanf » Mon Aug 01, 2011 3:09 pm
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3
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1273
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Last post by DSP007
Tue Aug 02, 2011 6:11 am
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Margin of error
by Juan2011 » Mon Aug 01, 2011 2:54 pm
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2
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2346
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Last post by Juan2011
Mon Aug 01, 2011 3:39 pm
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Dirty mobile phase?
by kobie » Wed Jul 20, 2011 4:15 pm
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5
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2012
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Last post by John Lim
Sun Jul 31, 2011 6:25 pm
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solvent peaks elute rather than analyte
by jamie_sfs » Wed Jul 27, 2011 3:35 am
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6
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3724
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Last post by tom jupille
Thu Jul 28, 2011 2:33 pm
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Reagents and Solvents for HPLC
by ahtiram2725 » Wed Jul 27, 2011 7:08 pm
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2
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1720
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Last post by ahtiram2725
Thu Jul 28, 2011 10:09 am
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Regenerate GPC column
by Sazabi » Wed Jul 27, 2011 9:04 pm
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1
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1945
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Last post by Gerhard Kratz
Thu Jul 28, 2011 8:12 am
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Superdex 200 replacement
by superdex » Wed Jul 27, 2011 6:45 am
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2
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2764
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Last post by superdex
Thu Jul 28, 2011 6:51 am
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can I re-use SPE catridge
by jiang295 » Tue Feb 02, 2010 4:12 am
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15
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6619
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Last post by slimshady
Thu Jul 28, 2011 1:20 am
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why so many peaks in gradient run
by krishchrom » Wed Jul 27, 2011 3:30 pm
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1
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1607
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Last post by tom jupille
Wed Jul 27, 2011 7:31 pm
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Fractionation of mushroom extract
by seamoro » Wed Jul 27, 2011 4:36 am
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1
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1365
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Last post by tom jupille
Wed Jul 27, 2011 7:23 pm
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Does isomers have same lambda max (UV MAX)
by krishchrom » Wed Jul 27, 2011 3:33 pm
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1
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1309
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Last post by Consumer Products Guy
Wed Jul 27, 2011 4:09 pm
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measure pyrrolidine by HPLC
by ryxiao » Tue Jul 26, 2011 10:50 pm
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1
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2561
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Last post by Andy Alpert
Wed Jul 27, 2011 2:08 pm
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"jagged" peptide peaks
by hooky » Tue May 17, 2011 1:10 am
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3
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2013
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Last post by samihat
Wed Jul 27, 2011 1:05 am
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phosphate solubility contributing to my noisy blank?
by mikear » Sat Jun 11, 2011 3:00 pm
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6
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2623
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Last post by austen
Wed Jul 27, 2011 12:51 am
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yet another questions regarding tocols separation
by krisradh1432 » Wed Jan 05, 2011 8:37 am
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9
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3101
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Last post by austen
Wed Jul 27, 2011 12:44 am
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RRT calculation
by brbabu_1979 » Tue Jul 26, 2011 1:09 pm
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1
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8058
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Last post by tom jupille
Tue Jul 26, 2011 9:11 pm
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Aspartame by Ph.Eur.
by Perreman » Mon Jul 25, 2011 9:50 am
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2
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1958
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Last post by Perreman
Tue Jul 26, 2011 8:08 am
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HPLC DAD FL noisy baseline
by AMY2242 » Fri Jul 15, 2011 6:10 pm
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20
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2891
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Last post by agnese
Mon Jul 25, 2011 9:38 am
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