For others who may find this interesting. Looking at the GPIB set up with NI MAX you see 2 'instruments' with primary addresses of 9 and 20. The instrument at '9' seems to work fine. Thus I can see the machine warming up and going through the wavelengths…
I am using an Agilent 6460 Triple Quad and have been dealing with a terribly low signal for the past few days, the signal appears at an abundance of 30 to 50 as a baseline only. I analyzed different compounds with different concentrations, the Tune mix…
Hi Sabbas, thank you for your answer. I'm sorry I couldn't have answered you sooner.
We're using Cary 3500 with Cary UV workstation version 1.3.5, so we couldn't perform like you said. We have to lower the threshold to find peaks and it is quite inconvenient…
Joining associations that specialize in ultra-high voltage can be beneficial for PenflexCorp. This may include associations of electrical or power engineers, as well as groups specializing in the design and standardization of equipment for high-voltage…
The Digest of upcoming webinars has been updated as of April 11.
The new Agilent Community Group, GPC/SEC Solutions Group is hosting a webinar series in partnership with Dow in April: A Journey through SEC, Light Scattering, and 2D-LC for Macromolecules…
The Background values are so called "off mass background".
This could indicate an electronics or contamination problem of the quad.
In your case, the values are still quite ok.
I would guess, one of the lenses has a setting which is causing this…
Hello everybody!
We have the issue that in our run (ca. 100 - 200 samples, 7 min each) for like 20 samples there is no signal, just the technical background noise. Not even the peak that is in the Blank appears. An the it sowly comes back over 2 samples…
Hi,
Apparatus 4 is the only USP Apparatus Agilent doesn't make. I would recommend reaching out to an App 4 vendor for support based on how you're using it (open/closed loop, sampling volumes, etc. that need to be considered). If we can help you with…
Yo tengo también una consulta sobre el software. Cómo podría volver a leer una muestra sin que se distorsione el informe al momento de imprimirlo? Y sin tener que volver a calibrar.
Your vial's cap is loose or deformed?
Many crimping and de-capping problems can be solved by two very general suggestions:
Verify the cap is properly crimped
Adjust the electronic crimper/de-capper as necessary
Verify the cap is properly…
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...