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SPE cartridge decomposition?
by KathyPolo » Fri Jun 05, 2020 12:41 am
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0
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9949
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Last post by KathyPolo
Fri Jun 05, 2020 12:41 am
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Sample prep with MSA
by CFire0515 » Thu May 21, 2020 12:54 pm
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0
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9060
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Last post by CFire0515
Thu May 21, 2020 12:54 pm
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sodium tetraethyl borate
by Sassolini » Tue Apr 07, 2020 3:37 pm
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2
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9426
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Last post by jerole
Wed May 20, 2020 10:22 am
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How to extract Ethanol from gel Hand sanitizers
by chemist23 » Tue May 12, 2020 7:53 pm
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1
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9379
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Last post by Consumer Products Guy
Wed May 13, 2020 2:05 pm
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Sodiumazide in alkaline hydrolysis
by Förbrylium » Tue Nov 12, 2019 9:21 am
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3
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9870
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Last post by trozen
Sun May 03, 2020 5:34 am
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How do I know how much I should dilute my sample in HPLC
by hibu » Sat Apr 25, 2020 8:58 am
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2
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9161
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Last post by hibu
Sat Apr 25, 2020 11:03 am
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derivatisation with sodium tetraethyl borate
by emsman » Mon Mar 25, 2013 1:37 pm
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5
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12403
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Last post by Sassolini
Tue Apr 07, 2020 3:01 pm
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SPE Class A requirement? Graduated conical centrifuge tubes
by LALman » Tue Mar 31, 2020 9:22 pm
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1
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8561
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Last post by James_Ball
Tue Mar 31, 2020 9:49 pm
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PAH / DRO by hexane/acetone microwave/ultrasonic extraction
by LALman » Wed Sep 05, 2018 8:41 pm
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9
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14009
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Last post by LALman
Wed Mar 11, 2020 5:55 pm
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525.2 Extraction Guidance
by ScientiaPotentiaEst » Fri Feb 21, 2020 2:46 pm
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4
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8686
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Last post by James_Ball
Mon Mar 02, 2020 10:45 pm
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Matrix-matched calibration question
by thohry » Thu Feb 20, 2020 1:32 pm
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1
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7962
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Last post by Steve Reimer
Thu Feb 20, 2020 5:00 pm
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Auto pipette availability
by Bigbear » Wed Feb 19, 2020 3:10 pm
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0
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7763
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Last post by Bigbear
Wed Feb 19, 2020 3:10 pm
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Pesticides analysis
by johnmario » Sat Feb 08, 2020 2:00 pm
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1
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7533
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Last post by rb6banjo
Tue Feb 11, 2020 5:16 pm
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EPA 549.2 Conditioning Solution A
by MadAsAHatter » Tue Feb 04, 2020 5:33 pm
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2
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7005
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Last post by Mritari
Thu Feb 06, 2020 8:16 pm
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Oxidation using Oasis WCX cartridges
by Mattias » Fri Jan 24, 2020 1:06 pm
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0
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9997
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Last post by Mattias
Fri Jan 24, 2020 1:06 pm
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Diazald availibility
by Bigbear » Thu Jan 09, 2020 12:59 pm
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4
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7149
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Last post by James_Ball
Thu Jan 09, 2020 10:54 pm
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about weighing out material
by agao123 » Tue Dec 17, 2019 4:43 am
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4
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7297
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Last post by rb6banjo
Fri Jan 03, 2020 2:05 pm
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Preparation of octenyl succinate
by mkarkov » Fri Dec 20, 2019 12:34 pm
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0
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6928
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Last post by mkarkov
Fri Dec 20, 2019 12:34 pm
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Purge and trap - loss of methylene chloride
by Mathieu_CZRI » Mon Aug 28, 2017 6:01 pm
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18
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15546
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Last post by Bigbear
Wed Dec 18, 2019 1:34 pm
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sample in pH=7.4 buffer with salts
by agao123 » Mon Sep 16, 2019 3:43 pm
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2
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7743
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Last post by agao123
Wed Nov 27, 2019 5:00 pm
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peroxide transfer from textiles to water
by ucanmoruk » Wed Nov 13, 2019 11:45 am
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1
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6662
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Last post by Steve Reimer
Mon Nov 18, 2019 9:37 pm
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Automatic timer 40 amps for hot plates
by bdhedhy19 » Mon Oct 21, 2019 3:04 am
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3
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7721
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Last post by bdhedhy19
Tue Nov 05, 2019 3:37 am
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Poor Recoverability From SPE
by handlovic » Thu Oct 10, 2019 1:48 am
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2
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7427
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Last post by Steve Reimer
Mon Oct 28, 2019 5:00 pm
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Povidone Nitrogen Content - Kjeldhal method
by Geof235 » Fri Oct 18, 2019 4:45 pm
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3
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7476
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Last post by DR
Wed Oct 23, 2019 1:57 pm
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Derivitization Reaction for sample analysis
by Geof235 » Fri Oct 18, 2019 8:49 pm
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0
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7222
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Last post by Geof235
Fri Oct 18, 2019 8:49 pm
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SPME procedure modification
by Pynball » Mon Sep 30, 2019 10:41 am
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5
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7412
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Last post by Dorlis03
Tue Oct 08, 2019 5:54 am
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Background peaks and trash in extraction
by ScientiaPotentiaEst » Wed Sep 25, 2019 6:25 pm
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3
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7201
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Last post by ScientiaPotentiaEst
Thu Sep 26, 2019 12:29 pm
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SPE stationary phase
by Pynball » Thu Sep 12, 2019 9:42 am
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1
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6954
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Last post by tom jupille
Fri Sep 13, 2019 11:48 pm
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SIDA issue
by Krusvar » Mon Sep 02, 2019 12:50 pm
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6
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8249
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Last post by James_Ball
Wed Sep 11, 2019 4:54 pm
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Calibration of balances, weights, and required check range
by LALman » Fri May 04, 2018 8:11 pm
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8
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14050
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Last post by LALman
Mon Aug 19, 2019 12:22 am
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Dilution Factor For Method 9056
by adamwmcanally » Thu Aug 08, 2019 3:10 pm
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1
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7279
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Last post by James_Ball
Thu Aug 08, 2019 6:36 pm
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How to determine 5ppm impurity in 1 gram API?
by Simyo » Tue Aug 06, 2019 7:55 am
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4
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7831
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Last post by Simyo
Wed Aug 07, 2019 7:35 am
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Dilution from stock solution - wrong results
by Ma Yik Ken » Fri Aug 02, 2019 2:15 pm
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1
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7162
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Last post by James_Ball
Fri Aug 02, 2019 2:38 pm
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Dilution factor
by Suraz » Fri Jul 19, 2019 3:33 pm
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2
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8490
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Last post by Suraz
Mon Jul 29, 2019 2:16 pm
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Humic Acid cleanup in 8270/625 extracts
by James_Ball » Tue Jul 23, 2019 7:20 pm
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3
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7616
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Last post by LALman
Fri Jul 26, 2019 12:34 am
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Pierce C18 tips vs. home made StageTips/microcolumns
by gvudrun » Mon Jul 01, 2019 12:17 pm
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0
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8607
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Last post by gvudrun
Mon Jul 01, 2019 12:17 pm
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New Purge & Trap for EPA 524.3- Advice on manufacturer?
by ciemnla » Sun Jun 02, 2019 7:24 pm
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2
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7640
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Last post by ciemnla
Sun Jun 09, 2019 1:12 pm
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Sample prep for acetaminophen in water by LCMSMS using SPE
by hts123 » Tue May 14, 2019 9:54 am
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4
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8279
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Last post by Aldijkhuizen
Tue May 21, 2019 6:43 pm
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Sample intake for premixtures
by Rndirk » Wed May 08, 2019 7:23 am
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4
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7964
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Last post by James_Ball
Thu May 09, 2019 7:34 pm
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Pesticides in Oil
by debora.ferreira » Thu Apr 11, 2019 11:52 am
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15
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11574
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Last post by HPLC chemist
Sun May 05, 2019 12:00 am
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Sample containing HPMC 4M
by Geof235 » Sun Apr 28, 2019 7:44 pm
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4
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7625
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Last post by Zoraku
Mon Apr 29, 2019 9:19 pm
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Repipet calibration?
by Bigbear » Tue Jun 03, 2014 12:34 pm
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13
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13239
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Last post by LALman
Thu Apr 11, 2019 6:18 pm
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EPA 548.1 Extraction Issues
by thewrightben » Fri Apr 05, 2019 4:36 pm
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0
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7614
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Last post by thewrightben
Fri Apr 05, 2019 4:36 pm
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Surfactant Removal
by Zoraku » Tue Jan 29, 2019 11:41 pm
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10
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12472
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Last post by Zoraku
Tue Apr 02, 2019 9:11 pm
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EPA1694- Testing Panadol in water LCMSMS
by hts123 » Wed Mar 20, 2019 2:32 pm
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2
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7092
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Last post by James_Ball
Mon Mar 25, 2019 6:56 pm
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Methanol and Ethanol by headspace
by sohaib1 » Fri Sep 21, 2018 3:15 pm
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2
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8788
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Last post by Bigbear
Mon Mar 25, 2019 12:56 pm
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EPA Method 3511 Microextraction
by Johannah14 » Tue Jan 09, 2018 10:18 pm
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6
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9766
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Last post by metaenv
Thu Mar 14, 2019 8:03 pm
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Dionex ASE 350
by chhubert » Fri Nov 08, 2013 9:26 am
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11
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15525
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Last post by Curiousone
Sat Mar 09, 2019 1:35 pm
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Which micropipette model for solvents
by geget » Wed Feb 27, 2019 3:24 pm
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2
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6838
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Last post by dblux_
Thu Feb 28, 2019 8:15 pm
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EPA Method 530 Extraction problems
by James_Ball » Fri Aug 10, 2018 4:25 pm
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5
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9377
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Last post by James_Ball
Tue Jan 29, 2019 3:32 pm
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