If you have ions in negative polarity and no ions in positive polarity, this means that one of the switching power supplies has failed. You'll need a trained engineer to identify & replace the part.
On that model, the vacuum system must reach a certain level, to start the turbo pump. So, in your case, it could be the thermocouple is burned out, or the backing pump is not working, or the turbo controller has failed. If you have the capability, check…
Dear Mike, thank you for your assistance. After reinstalling the cables and powering the system, the initialization of the instrument fails with all kinds of errors: 9:9614NMP:E9614 8031 timeout 9:9604NMP:E9604 Microm datum 9:9328SEQ:E9328 fatal initialisation…
yeh sure. Using the expression box, I want the ISTDPeak ISTDReponsePercentDeviation. I can get it from the Field Value options but I want to get it in an expression then I can apply a function like: "Pass" if BoundItems["ISTDPeak"].ISTDReponsePercentDeviation…
Hi, when launching OpenLab Control Panel the connection to shared services fails. When I check the connection it shows that the problem is "Agilent OpenLAB Shared Services" service is not running. However Net.tcp port is enable and running. Any suggestion…
The model number on GC is 6890N (G 1540N). I am using a method with split injection with 50:1 split ratio on hp-5 column to measure concentration of a methanol/water mixture using ipa as an internal standard. The method has been successfully used giving…
I want to load firmware the firmware of a 5975C Is there a way to manually load firmware onto a smartcard (instead of Agilent Configuration)? I have encounter an issue where someone has tried to update firmware using a computer that has various firewalls…
I want to load firmware the firmware of a 5975C Is there a way to manually load firmware onto a smartcard (instead of Agilent Configuration)? I have encounter an issue where someone has tried to update firmware using a computer that has various firewalls…
Hi I am facing problem with 6420A where it was not communicating and giving MSQQQ driver error. we replaced the quad driver and it started communicating. and fater quad dip when we started for tune we where not getting any response. Lab advisor test attached…
Hello camelia, I added tags to this post to increase visibility. One way to address this would be to set up a custom calculation to identify missing compounds for a given injection/signal. The below formula will output "No Calibrated Peak(s) Missing"…
This Information Applies To: All Agilent Gas Chromatographs, 6890, 6850, 7890, 7820, 8890, and 8860.
Issue:
A quick reference guide on the capillary column installation for the GC.
Inlets
Detectors
Split/splitless inlet Purged...
How to Add a GC Instrument in Agilent OpenLab CDS (Ver 2.x)
Multiple Results
This Information Applies To: Agilent OpenLab CDS (Ver 2.x)
Content:
The following procedure shows how to add a GC instrument in OpenLab CDS (Ver 2.x).
Steps to Follow:
1. Open OpenLab CDS Control Panel, in the Instruments interface, select...
This Information Applies To: Agilent Intuvo 9000, 8860, 8890, 7890A/B, 7820A, 6890, 6850 GC Systems with Split/Splitless, or Multimode Inlets.
Issue:
This article describes how to replace the inlet septum for Split/Splitless and multimode inlets...
This Information Applies To: Agilent GC Systems
Issue
The data rate determines the number of sampling points across the chromatographic peak and the sample background. The data rate is based on the width of the analyte speak (in minutes) and the...
This Information Applies To: Agilent GC Systems
Issue
Excessive baseline noise can be introduced at different points including sample preparation, sample introduction, separation, and the detector. The excessive background can cause reduced signal...
This Information Applies To: Agilent GC Systems
Issue
Baseline instability that is not reproducible across multiple runs can be introduced at different points including sample introduction, separation, and the detector. The baseline instability...
This Information Applies To: Agilent GC Systems
Issue
Peak fronting is present in a chromatography peak when it has an excessive asymmetry with a leading edge. A normal peak is almost symmetrical.
Other chromatographic problems are identified...
This Information Applies To: Agilent GC Systems
Issue
A shift in retention time can occur for single, multiple or all peaks.
Other chromatographic problems are identified in Basic Troubleshooting for GC Systems . Regular maintenance of your instrument...
This Information Applies To: Agilent GC Systems
Issue
A change in peak size can occur for single, multiple or all peaks.
Other chromatographic problems are identified in Basic Troubleshooting for GC Systems . Regular maintenance of your instrument...
This Information Applies To: Agilent GC Systems
Issue
Peak splitting is when a single compound is shown in the chromatogram as two peaks usually unresolved, or one of the peaks is a shoulder.
Other chromatographic problems are identified in Basic...