The maximum value in the software is 3000V. The EM usually starts out with quite a low required voltage, sometimes as low as the mid 800s to 1000V or so, jumps up sort of quickly, then stabilizes and goes up slowly until near the end of its life when…
Good job checking the heater and sensor with a voltmeter! 113 Ω is nearly typical at room temperature and 17-20Ω is typical for the heater. (see also (+) AUX 2 heater fault - Forum - GC/MS - Agilent Community ) Please also measure from each to the transferline…
Try tightening the black knob that holds the sample turret onto the turret motor. The turret is keyed onto the motor and the knob just holds it down, but if it has any wiggle room you might see the shuddering shown in the video.
After that, remove…
It really does not matter whether you do a wavelength calibration axial or radial, because the wavelengths hitting the detector are the same. The relative intensities will be different though, so the specific wavecal worksheet has specific threshold intensities…
It's going to be difficult to determine what is going on without seeing your batches. I would recommend that you contact tech support or your local Agilent applications chemist and send them your batches so they can help you.
Some COVID-19 vaccines are using lipid-based nanoparticles to act as drug delivery systems for effective on-target payload delivery. Just like any finished product components, lipid nanoparticle components—like pegylated lipids, cholesterol, ionizable…
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...