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s.khatuntsev
s.khatuntsev in Software11 hours ago (Show moreShow less)
Openlab Chemstation (C.1.07 [27]) edition. Working with linear retention indices.
Hello, everyone! I see a similar thread with masshunter, but not chemstation.   Do I need a macro to do the job with retention indices? Are such macros available for download? I'd like to identify some VOC by indices in an n-alkanes scale in a hardware setup with one injector, CFT-splitter, two different polarity columns attached to two… (Show moreShow less)
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ryoboyle
ryoboyle Employee (to s.khatuntsev) 7 hours ago (Show moreShow less)
Hello,   There is nothing native in OpenLab ChemStation that allows you to use Retention Indices in an analysis. You would need OpenLab Match Compare to access this functionality.
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prestochango93
prestochango93 in Liquid Chromatography2 days ago (Show moreShow less)
G1329B  fatal error EE 4020, 3020.
Looks like the needle is stuck in the 'up position' as it does not move and the error only occurs when I try to start a run or tell it to reset the needle.
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valentinrusu
valentinrusu Employee (to prestochango93) 9 hours ago (Show moreShow less)
Those errors refer to initialization failure (which is expected given the behavior described) and the fact that the instrument could not move the X-axis. See below for a schematic showing the motions of the motors in the transport assembly. You can find this schematic and a discussion of the transport assembly in the 1200 Standard Autosampler User…
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aew
aew in Liquid Chromatography10 hours ago (Show moreShow less)
power switch
Hey guys,   The power switch on one of our 1200 HPLC modules (the column compartment) does not stay compressed, so if not held in or with assistance by tape, it will power off.  Any recommendations on how to fix?  Seems to be a simpler problem than one that requires a service tech visit.   Thanks for any help! Bert
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valentinrusu
valentinrusu Employee (to aew) 10 hours ago (Show moreShow less)
Hi there! I hate to be the bearer of bad news, but the power switch pipe is not at all easy to replace. It's more difficult than the mainboard, to give you an idea, because it actually sits at the bottom of the module, below all of the major components, and connects from the front to the back of the instrument where the power supply is.…
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topsoe-lak
topsoe-lak in Gas Chromatography2 weeks ago (Show moreShow less)
Argon as carrier gas?
Hello Agilent,   At my company we have asked technical personel from Agilent several times during the years: Why is argon not an option as carrier gas on Agilent 6890/7890 gas chromatographs?   Argon is by far the best carrier gas when detecting hydrogen using a TCD as detector. In 7890 configuration setup, we can select argon/methane as… (Show moreShow less)
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james_jenkins
james_jenkins Employee (to topsoe-lak) 14 hours ago (Show moreShow less)
Hi topsoe-lak, I have updated the tags on your post for better visibility. Regards James
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mcolq01
mcolq01 in Basic Research2 weeks ago (Show moreShow less)
Packed column on 7890
Hello, I am trying to run a packed column on a 7890 GC.  As far as I know, the system is setup correctly in terms of hardware.  I am pretty new with packed columns on an Agilent GC, so I am not sure where to even begin in terms of method settings. I am looking for optimal method settings.  I am running phenethyl alcohol as a standard with He as… (Show moreShow less)
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james_jenkins
james_jenkins Employee (to mcolq01) 14 hours ago (Show moreShow less)
Hi mcolq01, I have moved your post to an application area so that it has more exposure. Packed column applications are rare today, I am hoping you get a connection with a user with a similar application. Regards James
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agr
agr in Mass Spectrometry1 week ago (Show moreShow less)
5977e msd tuning stopped
Hi all,   I tried to autotune out 5977e msd and the following error message appeared after a while: "tune/vacuum control error: the valid range for ent lens offset is 0.00 to 66.50, step 0.0081.   Also, there is no signal to be seen om masshunter workstation. Any ideas? Thanks.
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james_jenkins
james_jenkins Employee (to agr) 14 hours ago (Show moreShow less)
Hi agr, I updated the tags and moved this to Mass Spec for better visibility. Have you been able to resolve the issue? Regards James
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kenda
kenda Employee in AssayMAP1 day ago (Show moreShow less)
AssayMap Bravo User Meeting - October 5 - Little Falls COE
HI All,   I am excited to provide you with the registration site and agenda for the upcoming AssayMap User Meeting that will take place at the Agilent Little Falls Center of Excellence in Wilmington, DE on Friday, October 5.   We will have user from Bristol-Myers Squibb and Vanderbilt University discussing their data and experiences with the… (Show moreShow less)
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