Hello Yanding, Glad to hear that worked! The needle to seat connection is very resilient to pressure, and can hold at 600 bar and more. I do not believe that would be the reason why the connection failed, it is most likely that the screw or other part…
Hi, I would be grateful for the community's insight on an issue that has been plaguing our 6520 Accurate-Mass QTOF-LC/MS. We are able to successful turn on the instrument, power condition, do mass calibrations, and TOF tunes (all the way from quick tunes…
Use 1 meter of deactivated fused silica tubing going into the source (the same diameter of your column), then use a union (either the press-fit glass type of, better yet, the SilTite brand) to connect to your column in the oven. When you want to change…
Hello tdnola , "in use by another..." is a safety function that prevents a second session to the MSD: OK & wanted function. 1st) troubleshooting because a PING does only a small (OSI) communication check (are voltages & cabling OK?), I recommend the communication…
#I am currently battling with MH 4.5 and a generic communication error that has cascaded into me not being able to bring the 7700x into “shutdown” mode for ~6 weeks now. I have had numerous calls with tech support and all suggestions have failed to this…
We work with a Q-TOF 6545 and it fails positive auto tune. Is there anyone who knows this error, what causes it and what can be done to rectify this? Thank you
Hello everyone,
I have created a simultaneous SIM/scan method and we're using a HS-SPME-GC-MS system (GC: Agilent 7890 A GC-System; MS: Agilent 5975C Inert XL MSD with Triple-Axis Detector; Software: Chemstation G1701EA E.02.00.493).
We get a TIC…
Hello, I am trying to generate a streamlined intelligent report in OpenLab where we can capture all peaks of our SEC gel filtration standard in a single table and be able to evaluate APD Pass/Fail for each peak and Resolution between BGG and Ovalbumin…
Were you able to join us on April 11th for our Agilent GC Live session? If so, we would like to hear your thoughts and questions. If you missed it, please see the video below.
Time stamps refer to the above video.
(14:05) What is…
Hi I'm using chemstation revision G1701EA E.02.02.1431 and the last successful launch was a day yesterday. It seems the malfunction accrued (during a "run" with a "new" method we are trying. involves FID HS for DCM residue, all the vials were sampled…
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...
This Information Applies To: Agilent GC Systems
Issue
This test isolates the point of contamination to the sample introduction system, which includes the gas supply, gas supply lines, and the sample inlet. It does not include the syringe or autosampler...
This Information Applies To: Agilent GC systems
Issue
Peak tailing is present in a chromatography peak when it has an excessive asymmetry with a trailing edge. A normal peak is almost symmetrical.
Other chromatographic problems are identified...
T his Information Applies To: Agilent 8890/8860/7890/7820/6850/6890 GC Systems with TCD (Thermal Conductivity Detector)
Issue
Problems observed with thermal conductivity detector (TCD) results can have different underlying causes.
Resolution...
This Information Applies To: All GCs, 6890, 6850, 7890, 7820, 8890/8860, Intuvo 9000
Issue:
This article is a troubleshooting guide for when the Flame Ionization Detector (FID) does not ignite or the flame keeps going out.
Cause:
If the FID...