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Baseline Drops
by nbarti » Thu Dec 28, 2023 12:22 am
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1
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3339
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Last post by DR
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SO2 question
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3
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7627
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HP5890 missing parts help
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5
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3975
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Reduced peak are/height of one analyte
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3
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4507
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hp 5890 EPC
by Nchec326 » Thu Dec 21, 2023 3:32 pm
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0
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5861
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evaluate actual values of H2 and N2
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1
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3154
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Can 100% acetonitrile damage d7-butyric acid in GCMS?
by praptichak » Tue Dec 19, 2023 9:34 am
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0
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5748
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Last post by praptichak
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High RSD
by arv » Thu Jan 26, 2023 4:30 pm
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3
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3720
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Last post by gyrusaudit
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Why is there low signals for PFBBr derivatised-d7 butyric ac
by praptichak » Tue Dec 19, 2023 12:33 am
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0
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5817
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Last post by praptichak
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HP 5890 EPC high
by Nchec326 » Thu Dec 14, 2023 3:05 pm
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0
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5889
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gases separation
by n.noori » Fri Dec 08, 2023 12:39 pm
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0
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5641
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Question about EPA 552.3 HAA5 GC-ECD Method
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2
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3106
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Higher responses for later eluting compounds in THMs 524.2
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1
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2828
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Masshunter GCMS system suitability
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1
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2843
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EPA method 552.3
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10
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9481
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Shimadzu GCMS autotune failing 502 intensity
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2
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3122
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Want to Buy: refurbished micro ECD for Agilent GC 6890
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0
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4858
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HP 5890 Series ii Revival
by Toastybunz1 » Thu Nov 16, 2023 7:44 pm
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4
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2719
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pressure always 0.01 below setpoint
by MichaelVW » Fri Nov 03, 2023 12:34 am
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7
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2942
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Retention time change with Gas Saver time
by ahmed ismail » Thu Nov 02, 2023 6:08 pm
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5
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2578
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6890 ECDs... where to buy?
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3
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3986
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Removing detector from 6890N
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5
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2676
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How tu purge air line in Agilent 6850 GC
by TheBlob » Fri Oct 20, 2023 8:03 pm
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2
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2563
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calibration liquid methanol in GC
by samira123 » Thu Oct 05, 2023 1:31 am
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7
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3492
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GCMS SPME Noisy Baseline at End of Injection
by PurplePeacock » Fri Nov 10, 2023 9:58 am
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0
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3923
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Last post by PurplePeacock
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HCl gas in GC columns
by sophie180 » Thu Nov 02, 2023 3:16 pm
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2
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2991
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Signal Without turning on FID Detector!
by ahmed ismail » Fri Oct 06, 2023 11:18 am
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5
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2907
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Last post by dblux_
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Increasing in Retention time
by ahmed ismail » Thu Aug 24, 2023 5:52 pm
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10
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5769
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Standard Compound carryover
by PFS » Fri Sep 15, 2023 4:11 am
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1
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3696
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Can I top off foreline pump oil without venting?
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2
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2331
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Theoretical concentration calculation STD
by Nickbello93 » Wed Oct 18, 2023 2:47 pm
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0
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4022
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Last post by Nickbello93
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Gas chromatographic methods for HFA and HFP
by wss-1688 » Sun Oct 08, 2023 8:21 am
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0
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3185
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9377-2 Mineral oil test
by therdem » Thu Oct 05, 2023 8:22 am
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0
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2988
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Last post by therdem
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inaccurate SPME measurements
by ChrisT » Tue Oct 03, 2023 2:53 pm
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1
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2248
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Last post by ChrisT
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Adjusting retention times in Data Analysis (Chemstation)
by Trishia » Fri Jul 16, 2021 3:03 pm
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6
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6634
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PTV inlet adapter not sealing.
by mwolhowe » Thu Sep 28, 2023 10:20 pm
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0
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3327
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varian star 6.41 version
by taemin » Thu Feb 02, 2017 12:00 am
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3
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6114
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Stainless steel or copper hydrogen lines
by jkocis » Wed Jul 02, 2014 11:49 am
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9
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16251
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Sequence aborting prior to injection
by AnaChem1983 » Mon Sep 25, 2023 4:03 pm
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1
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3433
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Last post by AnaChem1983
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Change of carrier gas
by aniket1706 » Tue Sep 26, 2023 7:18 am
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1
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1890
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Can't find software Totalchrom
by mkliese » Mon Sep 25, 2023 5:00 pm
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2
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1757
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Observe Baseline spikes in conditioning!
by ahmed ismail » Tue Sep 19, 2023 5:31 pm
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3
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1691
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Last post by dblux_
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different results obtained using 6890N v 7890A
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4
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4347
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Troubleshooting Recoveries Over 100% In Spiked Placebo
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5
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2163
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Accounting for Matrix Effects
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16
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10358
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Filter for liquid contamination in gas samples
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1
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2854
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Last post by AICMM
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Nitric oxide on GC
by MatteusL » Tue Sep 12, 2023 12:49 pm
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1
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2841
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Last post by AICMM
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What detector is this? (pic)
by MichaelVW » Sat Sep 09, 2023 12:40 am
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3
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2961
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Liquid Hydrocarbon Analysis with Sim-Dist GC
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2
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2684
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TD-GC/MS, foreline pressure problem
by shkim64 » Fri Sep 08, 2023 6:18 am
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2
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2921
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