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Control of Standards in unstable equipment (LC-MS/MS)
by biotechno » Mon Jun 20, 2016 3:48 pm
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2
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3361
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Last post by richiekichi
Tue Jun 21, 2016 6:21 am
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Varian pump controller electronics
by Peter Apps » Fri Jun 17, 2016 10:46 am
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3
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3634
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Last post by Peter Apps
Sat Jun 18, 2016 2:27 pm
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LC/MS/MS - what for??
by cjm » Fri Jun 17, 2016 3:56 pm
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3
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3504
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Last post by James_Ball
Fri Jun 17, 2016 10:00 pm
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masshunter sim
by erdno » Mon Jun 13, 2016 7:06 am
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2
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3786
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Last post by erdno
Fri Jun 17, 2016 11:09 am
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Changes in Electron Multiplier Voltage
by Ostravaczech » Sat Jun 11, 2016 12:14 am
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1
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4133
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Last post by James_Ball
Wed Jun 15, 2016 4:06 pm
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MS vacuum questions
by jkloepping » Sat Jun 11, 2016 6:26 pm
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1
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4401
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Last post by James_Ball
Wed Jun 15, 2016 3:59 pm
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Proteomics alkylation woes
by Jeffetw » Thu Jun 09, 2016 7:51 pm
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0
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5186
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Last post by Jeffetw
Thu Jun 09, 2016 7:51 pm
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Finnigan MAT GCQ GC/MS Questions
by carbondylan10 » Thu Jun 09, 2016 6:21 pm
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0
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5484
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Last post by carbondylan10
Thu Jun 09, 2016 6:21 pm
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Purge&Trap GCMS internal standard increase, new observations
by James_Ball » Fri Jun 12, 2015 2:33 pm
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18
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12609
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Last post by Bigbear
Thu Jun 09, 2016 11:37 am
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20 years running purge and trap GCMS and I am stumped
by James_Ball » Thu Aug 08, 2013 10:09 pm
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31
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16917
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Last post by Bigbear
Wed Jun 08, 2016 5:11 pm
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5973 Probe-MS Autotune Leak
by csmith731 » Wed Jun 01, 2016 6:22 pm
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4
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3410
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Last post by James_Ball
Tue Jun 07, 2016 9:33 pm
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Quality, why 15%?
by dp_kloos » Thu Jun 02, 2016 8:42 am
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4
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3115
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Last post by James_Ball
Tue Jun 07, 2016 8:09 pm
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EPA contract labs
by VJP » Fri Jun 03, 2016 12:04 pm
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2
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3073
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Last post by James_Ball
Tue Jun 07, 2016 8:04 pm
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GC-FID-MS: what's the catch?
by Rachel-G » Mon May 23, 2016 2:00 pm
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14
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10445
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Last post by BMU_VMW
Thu Jun 02, 2016 2:20 pm
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Problems with Tekmar Teledyne AtomX
by aphmltn » Fri May 13, 2016 6:35 pm
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3
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4171
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Last post by aphmltn
Thu Jun 02, 2016 2:19 pm
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Small LC-triple quad
by mckrause » Fri May 06, 2016 2:47 pm
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1
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4646
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Last post by Chemist89567
Wed Jun 01, 2016 7:08 pm
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putting vacuum pumps in series?
by pmg804 » Tue May 24, 2016 6:28 pm
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2
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2741
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Last post by James_Ball
Wed Jun 01, 2016 3:59 pm
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What to do about a contaminated LC-MS?
by Baruch » Mon May 30, 2016 9:18 am
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4
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3476
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Last post by Baruch
Tue May 31, 2016 8:06 pm
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RSD% of phthalates on GC/MS not good
by thohry » Wed May 18, 2016 9:20 am
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9
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4366
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Last post by tkubowicz
Tue May 31, 2016 9:34 am
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Archon 8100 - Autodrain
by cjm » Tue May 24, 2016 6:34 pm
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4
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3194
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Last post by cjm
Thu May 26, 2016 12:57 pm
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Not seeing m/z above ~60 on Saturn 2000 MS.
by nickos012002 » Tue Apr 26, 2016 2:40 am
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7
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4480
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Last post by MJD
Wed May 25, 2016 11:10 am
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auto tuning
by Patson » Wed Aug 04, 2010 3:27 pm
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3
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4038
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Last post by rp18
Wed May 25, 2016 7:41 am
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hplc-MS contamination
by hplcnewuser1 » Thu Mar 24, 2016 7:24 pm
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5
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4139
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Last post by BostonFSE
Tue May 24, 2016 8:34 pm
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cannot tune stune
by chloesabrina » Fri May 06, 2016 5:17 pm
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4
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3649
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Last post by chloesabrina
Tue May 24, 2016 3:39 pm
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HPLC with ICP-MS
by NazarF » Tue May 17, 2016 1:33 pm
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3
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4877
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Last post by James_Ball
Thu May 19, 2016 7:09 pm
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ESI needle clogged - Q Exactive
by marisilvas » Wed May 18, 2016 8:45 am
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1
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3439
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Last post by JMB
Thu May 19, 2016 5:40 pm
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Nitrogen purging
by pueblito » Tue May 10, 2016 4:07 pm
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4
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3923
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Last post by Steve Reimer
Wed May 18, 2016 2:40 pm
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Peak area and height decreasing over time
by haagiboy » Fri May 13, 2016 2:30 pm
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1
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3191
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Last post by James_Ball
Fri May 13, 2016 6:31 pm
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Big Increase in Scan Mode Sensitivity
by RoseCity » Wed May 11, 2016 9:48 pm
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2
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3188
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Last post by RoseCity
Thu May 12, 2016 4:15 pm
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ICPMS, IPA,NH4OH analysis
by Jaehwan Lee » Wed Apr 20, 2016 1:48 am
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4
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4701
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Last post by James_Ball
Tue May 10, 2016 6:18 pm
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GC Split Plate
by YuYing » Sat May 07, 2016 5:03 am
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3
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3882
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Last post by James_Ball
Tue May 10, 2016 6:06 pm
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Interfering ions (107, 108) in LC-MS/MS
by thohry » Tue May 10, 2016 1:58 am
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0
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6673
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Last post by thohry
Tue May 10, 2016 1:58 am
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cleaning h3po4 contamination in lc-ms
by csmith731 » Fri Apr 22, 2016 12:09 pm
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3
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4642
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Last post by mckrause
Sat May 07, 2016 2:51 pm
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Saturn 2000 with Chemstation 6.6 sp 1
by johnbor » Thu May 05, 2016 10:06 pm
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1
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4232
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Last post by MJD
Wed May 25, 2016 1:50 pm
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ACquity/QtrroPremierX-Divert/Inject valve
by Sonia Oliva » Thu Apr 28, 2016 1:03 pm
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5
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3378
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Last post by Sonia Oliva
Wed May 04, 2016 11:53 am
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Inlet temperature GCMS
by sriharshabio » Tue Feb 16, 2016 6:02 pm
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8
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14994
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Last post by MSCHemist
Mon May 02, 2016 1:41 pm
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GC-MS: Solvent peak in SIM. Why?
by Graf Chromato » Fri Apr 29, 2016 7:59 pm
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2
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4184
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Last post by Graf Chromato
Sat Apr 30, 2016 10:13 am
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LCMS grade solvents (acetonitrile)
by hfredricks » Thu Apr 21, 2016 6:51 pm
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13
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6995
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Last post by MMJ88
Fri Apr 29, 2016 10:53 pm
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Tuning result-water content
by ajoyr1986 » Fri Apr 01, 2016 9:38 am
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3
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3383
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Last post by JMB
Tue Apr 26, 2016 3:10 pm
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GC MS - contaminant 190.9 - 206 - 208
by KevinBe » Wed Apr 20, 2016 7:28 am
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1
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3053
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Last post by JMB
Tue Apr 26, 2016 2:50 pm
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Does nano/micro HPLC improve MS signal for small molecules?
by ChromKing » Wed Apr 06, 2016 2:41 pm
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4
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3731
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Last post by sav
Mon Apr 18, 2016 10:12 pm
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Icp organic run plasma problem
by JWF239 » Wed Mar 30, 2016 10:12 pm
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1
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2830
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Last post by JWF239
Tue Apr 12, 2016 12:50 pm
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API 3000 Experience
by alanluedtke » Wed Oct 31, 2012 3:38 pm
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8
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3707
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Last post by dr_bahram1977
Fri Apr 08, 2016 6:05 pm
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Sample prep: hydrazine derivatization for LC-MS/MS analysis
by syntel » Wed Nov 18, 2015 5:20 pm
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3
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6703
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Last post by sav
Fri Apr 08, 2016 3:13 pm
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API 3000 service manual?
by sassman » Mon Oct 06, 2008 5:46 pm
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6
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6054
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Last post by dr_bahram1977
Fri Apr 08, 2016 8:25 am
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Choice of compound for dead time measurement in LCMS/LC-RI.
by haagiboy » Thu Apr 07, 2016 11:15 am
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6
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5505
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Last post by haagiboy
Mon Apr 11, 2016 10:33 am
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GC-MS ITQ 700 - Tuning issue
by KevinBe » Tue Apr 05, 2016 11:10 am
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0
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6243
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Last post by KevinBe
Tue Apr 05, 2016 11:10 am
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LC-MS/MS ion ratio consistency
by joanne.giaccio » Tue Feb 03, 2015 1:16 am
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5
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13392
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Last post by biotechno
Sun Apr 03, 2016 10:12 am
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Gc Ms Voc BFB mass 50 fail too low and mass 174 to high
by Carlostek » Fri Mar 18, 2016 2:18 am
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9
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6525
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Last post by Carlostek
Sat Apr 02, 2016 5:54 pm
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SPME non-linear
by Monty_Python » Tue Mar 15, 2016 3:45 pm
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4
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3279
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Last post by Peter Apps
Tue Mar 22, 2016 1:00 pm
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