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What causes peptides to have longer retention on a C4 vs C18
by pipettemonkey » Wed Oct 15, 2008 1:01 am
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10
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2824
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Last post by Kostas Petritis
Thu Oct 16, 2008 4:08 pm
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Help: HP 1090 with a Waters 410 RI
by dalehramsa » Tue Oct 14, 2008 5:49 pm
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6
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2022
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Last post by Bruce Hamilton
Wed Oct 15, 2008 8:24 pm
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Agilent Column Selection Valve
by bmoritz » Wed Oct 08, 2008 9:04 pm
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4
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2692
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Last post by HPLCCONSULT
Wed Oct 15, 2008 8:20 pm
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More shallow the gradient, the better the resolution?
by pipettemonkey » Fri Oct 10, 2008 5:56 pm
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10
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12801
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Last post by HW Mueller
Wed Oct 15, 2008 1:53 pm
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Choosing the right column, mobile phase for peptide purifica
by pipettemonkey » Wed Oct 15, 2008 1:35 am
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2
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1708
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Last post by pipettemonkey
Wed Oct 15, 2008 2:37 am
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Gentamycin EP analysis
by aceto_81 » Tue Oct 14, 2008 6:18 am
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0
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1535
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Last post by aceto_81
Tue Oct 14, 2008 6:18 am
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high temperature reverse phase column??
by rick1112 » Thu Oct 09, 2008 4:16 am
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8
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2211
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Last post by Kostas Petritis
Mon Oct 13, 2008 4:50 pm
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Pramipexole EP method
by rejxil » Fri Oct 10, 2008 10:27 am
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3
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1918
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Last post by rejxil
Mon Oct 13, 2008 7:12 am
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r.i.p. betty hamilton
by pipettemonkey » Sat Oct 11, 2008 5:14 pm
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3
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1690
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Last post by pipettemonkey
Sun Oct 12, 2008 11:23 pm
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How to get peak-to-valley ratio from Chemstation?
by Terry » Sat Oct 11, 2008 2:37 pm
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0
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2417
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Last post by Terry
Sat Oct 11, 2008 2:37 pm
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Relative Response Definition
by wanda50 » Thu Oct 09, 2008 8:18 pm
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1
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2004
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Last post by Dan
Fri Oct 10, 2008 2:48 am
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IQ OQ PQ obsolete!
by AdrianF » Wed Oct 08, 2008 9:58 pm
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5
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2233
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Last post by JGK
Thu Oct 09, 2008 5:30 pm
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On column degradation
by JA » Wed Aug 06, 2008 11:52 pm
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27
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10622
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Last post by Tom Waeghe
Thu Oct 09, 2008 2:50 pm
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FMOC derivatising Agent
by khaassi » Wed Oct 08, 2008 1:14 pm
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2
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1772
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Last post by ym3142
Thu Oct 09, 2008 2:12 pm
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Pacifying an LC?
by GregK » Wed Oct 08, 2008 4:53 am
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10
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4146
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Last post by GregK
Thu Oct 09, 2008 12:09 am
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Good price for an Acquity (refurb)?
by parmacotto » Wed Oct 08, 2008 8:12 pm
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2
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1653
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Last post by parmacotto
Wed Oct 08, 2008 9:11 pm
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Help! Rusty Autosampler
by marta-ivanova » Wed Oct 08, 2008 9:07 pm
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0
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1559
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Last post by marta-ivanova
Wed Oct 08, 2008 9:07 pm
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Sedex ELSD model 65 manual
by labstephan » Thu Oct 02, 2008 4:07 pm
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6
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2747
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Last post by Kostas Petritis
Wed Oct 08, 2008 6:59 pm
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HPLC macro help
by beca » Tue Oct 07, 2008 11:03 pm
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0
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1483
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Last post by beca
Tue Oct 07, 2008 11:03 pm
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solvent not miscible with water
by d.telaro » Mon Oct 06, 2008 11:43 am
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2
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1688
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Last post by Bryan Evans
Mon Oct 06, 2008 2:42 pm
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Peaks in blank run ......?!
by Provetech » Fri Oct 03, 2008 9:41 am
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4
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2969
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Last post by Rob Burgess
Mon Oct 06, 2008 12:11 pm
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CZE buffers
by PHOBIUS » Mon Oct 06, 2008 8:01 am
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0
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1478
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Last post by PHOBIUS
Mon Oct 06, 2008 8:01 am
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mobile phase
by d.telaro » Fri Oct 03, 2008 12:57 pm
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8
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2318
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Last post by danko
Mon Oct 06, 2008 7:49 am
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Simoultaneous use of plasma EDTA and heparihized one as matr
by Anna Arag » Sat Oct 04, 2008 10:02 am
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3
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1691
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Last post by HW Mueller
Mon Oct 06, 2008 7:19 am
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Extraction of Ascorbic Acid from Luffa
by John R. Carver » Wed Sep 24, 2008 6:45 pm
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2
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1808
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Last post by Einar Ponten
Thu Oct 02, 2008 9:04 pm
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how should i start my method development for HPLC
by parveenqa » Sun Sep 28, 2008 2:37 pm
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3
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1840
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Last post by Einar Ponten
Thu Oct 02, 2008 9:01 pm
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Waters Alliance 2790 no peaks?!
by MIB_EO » Tue Sep 30, 2008 3:06 pm
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5
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1744
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Last post by MIB_EO
Thu Oct 02, 2008 2:09 pm
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what is cut off for tetraalkylammonium sal (HPLC) ?
by JOCAPEN » Wed Sep 10, 2008 12:32 pm
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5
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2539
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Last post by JOCAPEN
Wed Oct 01, 2008 8:44 pm
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Extraction of "Free Fatty Acids" from rodent blood
by John R. Carver » Mon Sep 29, 2008 4:07 pm
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3
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1831
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Last post by HW Mueller
Wed Oct 01, 2008 7:47 am
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Analysis of Urea on a Hypersil LC column
by John R. Carver » Tue Sep 30, 2008 5:15 pm
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1
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1616
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Last post by H.Thomas
Wed Oct 01, 2008 7:15 am
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effect of plasma dilution prior to SPE
by bert » Fri Sep 19, 2008 10:00 am
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9
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3195
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Last post by Fat Jonny
Tue Sep 30, 2008 5:22 pm
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how to increase the response of a method for an analyte
by parveenqa » Sun Sep 28, 2008 2:24 pm
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3
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1818
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Last post by AdrianF
Tue Sep 30, 2008 3:56 pm
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Snedecor's F test for linearity
by Kwet » Sat Sep 27, 2008 3:04 pm
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11
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3508
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Last post by aceto_81
Tue Sep 30, 2008 8:43 am
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ref std purity
by mojo » Mon Sep 29, 2008 12:22 pm
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3
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1514
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Last post by Bruce Hamilton
Mon Sep 29, 2008 7:55 pm
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Electrochemical detector testing
by Lyser » Thu Sep 25, 2008 8:56 am
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3
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1965
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Last post by Lyser
Mon Sep 29, 2008 8:30 am
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What does Ion capacity or Ion exchange capacity indicates??
by rick1112 » Sun Aug 31, 2008 4:07 am
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31
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7379
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Last post by HW Mueller
Mon Sep 29, 2008 8:29 am
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comparison of RP-columns
by rick1112 » Thu Sep 11, 2008 11:24 am
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5
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2058
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Last post by JA
Sun Sep 28, 2008 7:22 pm
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Purity Assignment for non-pharmacopeial compounds
by banala_b » Sat Sep 27, 2008 8:02 pm
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0
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2033
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Last post by banala_b
Sat Sep 27, 2008 8:02 pm
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Regenerating Normal Phase Columns
by adam » Tue Sep 23, 2008 1:06 am
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4
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1937
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Last post by Noser222
Sat Sep 27, 2008 6:57 pm
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Silver Ion HPLC for Oil & Fat Analysis Using ELSD
by kan » Thu Sep 25, 2008 8:20 am
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6
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2233
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Last post by kan
Sat Sep 27, 2008 4:30 pm
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Column Diameter Required for High Pressure HPLC
by hajdaei » Mon Sep 15, 2008 9:09 pm
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10
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2825
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Last post by Uwe Neue
Sat Sep 27, 2008 2:11 pm
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RPC Column Switch - Please advise!
by courtnic7 » Thu Sep 25, 2008 5:50 am
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6
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1851
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Last post by Uwe Neue
Sat Sep 27, 2008 1:58 pm
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HPLC - ELSD
by ntbhat » Thu Sep 25, 2008 7:14 pm
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6
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2029
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Last post by Einar Ponten
Fri Sep 26, 2008 7:35 pm
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retention time and pressure problems
by inge » Wed Sep 24, 2008 8:29 am
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9
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2235
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Last post by HW Mueller
Fri Sep 26, 2008 7:35 am
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filter Nylon, PTFE, PVDF ?
by adrien16 » Wed Sep 24, 2008 12:40 pm
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7
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2280
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Last post by mbicking
Thu Sep 25, 2008 5:58 pm
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PTFE digestion
by emsman » Thu Sep 25, 2008 2:53 pm
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1
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1279
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Last post by rhaefe
Thu Sep 25, 2008 3:08 pm
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Re: HPLC method for residual alpha olefins in polymers?
by IC_Gal » Wed Sep 24, 2008 9:20 pm
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0
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1447
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Last post by IC_Gal
Wed Sep 24, 2008 9:20 pm
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Why use LiCl in DMF
by berkeley1 » Mon Sep 08, 2008 4:27 pm
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1
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3470
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Last post by colex
Wed Sep 24, 2008 3:41 pm
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Any advices for a RP-HPLC separation???
by Karvezide » Wed Sep 17, 2008 1:40 pm
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7
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2267
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Last post by goxy43
Tue Sep 23, 2008 11:50 am
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"design" of a pharmaceutical product purity analys
by ricopalazo » Tue Sep 23, 2008 11:12 am
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1
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1606
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Last post by shaun78
Tue Sep 23, 2008 11:41 am
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