Hi Everyone,
Please can you help me. We have been having repeatability problems on the HP7890B for a long time and can't get to the bottom of it. Analysing for VOC. I have run lots of RSD measurements (10 injections). A common thing we are seeing…
That's interesting. I wonder if there are any differences to be expected between a 6890N and a 7890 GC when using Chemstation on the 6890N and Openlab 2.3 on the 7890 with FID? Also, would there be any differences in the signal to noise and dynamic range…
Hi dprobst, The 7890A GC has atmospheric pressure correction built into the electronics. I think it is also worth mentioning that the system isn't controlling flow through the FID, it is controlling pressure across a fixed restriction and calculating…
It's FID detector . in the activity log the message is: Disconnected from xxxxxxxx (computer no.) instrument controller. Error: instrument has shutdown unexpectidaly . this is the exact message obtained in activity log . before starting the sequence i…
Hi Lars, I would add an input from my experience that H2 carrier gas may cause some chemical reactions on some specific polar columns and compounds. Two scenarios I have encountered were (1) analysis of C4-C5 olefins on an AL2O3 PLOT column where some…
Hi all We are using GC6890N in our lab to analyze dry gas, the GC with TCD and FID and four columns Two weeks ago We noticed something strange in the results like a cycle. N2 value it goes up and then goes back down. Is there any advice to solve this…
one professor's lab has an Agilent GC-FID-FPD 6890N. Chemstation software G2070AA A08.01 has been accidently removed from the computer. Googled installation document, but could not find. We has installed the software and configured GC6890 with GPIB communication…
Hi acraig First replace saptum until if you don't detected leak because sometime tiny leak in saptum cause low sensitivity. Second sometimes over tightening the ferrule connection of column to injector cause constriction the flow and reduce analyte at…
This Information Applies To: Agilent ICP Expert software.
Issue
The software version is often asked and is a valuable information: to see if any updates are needed, if certain options are available etc.
Steps to Follow
Launch ICP Expert...
This Information Applies To: Agilent OpenLab CDS
Issue
This article provides step-by-step instructions to calculate peak-to-valley ratio in OpenLab CDS.
Background
The peak-to-valley ratio is calculated to indicate the quality of peak separation...
This Information Applies To: Agilent 6500 Series Q-TOF LC/MS systems, MassHunter Workstation 10.1 or below and MassHunter Workstation 11.0 .
Issue
Fully reset the Q-TOF LC/MS system via a power cycle without venting. For users who experience slow...
This Information Applies To: Agilent 5200/5300/5400 Fragment Analyzer, Femto Pulse, ZAG DNA Analyzer, and Oligo Pro II systems
Issue
The volume of sample used by Agilent parallel capillary electrophoresis systems during a run.
Resolution
The...
This Information Applies To: Agilent 2100 Expert software, 2100 Expert Security Pack, 2100 Bioanalyzer
Issue
When opening the 2100 Expert software and using the Security Pack, the error message " Start of launcher application failed - The requested...
This Information Applies To: Agilent 6890, 6850, 7890, 8890, 8860, Intuvo 9000 GC systems.
Issue
The exchange of the ignitor in a Flame Photometric Detector (FPD) may be required in the following scenarios:
Preventive or periodic maintenance...
This Information Applies To: Agilent 1290 Infinity Quaternary Pump G4204A, 1290 Infinity II Flexible Pumps G7104A/C, and G7131A/C.
Issue
If the flexible/quaternary pump does not generate flow or build up pressure, it could be due to a stuck inlet...
This Information Applies To: Agilent 5200, 5300 and 5400 Fragment Analyzer systems
Issue
Separation times for the Fragment Analyzer for each array format and kit.
Resolution
Caution : The times in this article are the length of time...
This Information Applies To: Agilent 5200/5300/5400 Fragment Analyzer, Femto Pulse, ZAG DNA Analyzer, Oligo Pro II, ProteoAnalyzer systems
Issue
Guidance for installing the Agilent parallel capillary electrophoresis instrument controller and/or...
This Information Applies To: OpenLab CDS (version 2.x) system
Issue:
This article explains how to export OpenLab CDS 2.x data as Archived file.
For copying OpenLab CDS 2.x data to another Projects or another OpenLab CDS systems, you can use data...