Good day . i have another issue to my 8890. after replacing the fused silica in transfer line. tha air flow in FID is suddenly shutting down. then i try the detector diagnostic in the system it said test failed and need to replace the jet.
after replacing…
Hello,
this look like your plasma is not align with the cones. For the EM to failed it's difficult. You have to check for noise when it's doing it and if the counts are low when it's using mass 80. You can try to tune EM with mass 37 if you know where…
Try to ignite the plasma, without fixing the shield plate. Due to poor quality of argon gas or leak on gas line, reflected power will be above the limit and prevent the plasma sustain. Sometimes, the plasma sensor fiber optics tip is damaged, needs to…
Hello,
I am currently developing a residual solvent analysis method by Gas chromatography equipped with a flame ionization detector. My sample is an API with a phosphate salt attached. One of the residual solvents of interest is triethylamine. When…
8/7/19
Hello,
I have had a fair amount of success with posted questions in this forum, so here is another one. I am interested in knowing more about whether the flame ionization detector I have equipped on my HP/Agilent 6890 GC is the correct detector…
We have a lot of 1260s and 1290s in our lab, and as part of our sustainability initiatives are looking for ways to reduce our energy usage. Currently, all the instruments are left on (standby), and most of them also have the lamps on when not in use.…
When I need information about detectors I use the following books:
Raymond P. W. Scott "Chromatographic Detectors - Design, Function, and Operation", Chromatographic Science Series Volume 73, Marcel Dekker, New York (1996). ISBN 0-8247-9779-5.
Raymond…
Hello Inês,
Typically we use the Performance report as a general health report of the instrument. Changing plasma parameters may cause the test to fail, unless you correct the limits. Moving the sample depth will decrease sensitivity and can increase…
Hi Guys,
I have a GC that does not seperate natural gas(maily C1 and C2 with small traces of C3+), it comes as almost one peak, and for condensate (C3+) it seperates C6+, and does not seperate C3÷C5,
I Have,
1: Readjusted the split ratio Many Many…
Hello
I'm trying to setup report to have values in column "PASS/FAIL" green or red depends on result.
Can I do it as conditional formatting for column "PASS/FAIL" to mark FAIL as red based on text?
This column "PASS/FAIL" is custom field and…
This Information Applies To: OpenLab CDS ChemStation (version C.01.xx), OpenLab CDS EZChrom (version A.04.xx), OpenLab CDS (version 2.x), OpenLab ECM XT
Issue:
An Agilent Support Engineer may request system internal log files when troubleshooting...
This Information Applies To: Agilent OpenLab CDS software
Issue
The online signal does not appear in the online signal window while data acquisition is running. Alternatively, only part of the online signal is displayed and will not continue during...
This Information Applies To: Agilent Refractive Index Detectors, G1362A and G7162A/B.
Issue:
The RID is sensitive to its environment and can experience stability problems when exposed to contamination, vibrations, mechanical shocks, or changes in...
This Information Applies To: Agilent Lab Advisor Software
Issue:
Lab Advisor Software provides state-of-the-art tests, tools, and calibrations to support you in the daily operation, maintenance, and basic troubleshooting tasks.
This article describes...
This Information Applies To: All Agilent HPLC Autosampler modules
Issue:
Nonreproducible peak areas between injections, using the same sample and the same experimental conditions.
Resolution:
The issue may come from different sources, it is...
This Information Applies To: All Agilent Pumps.
Issue:
Contaminated solvents or algae growth in your solvent bottle will reduce the lifetime of the solvent filter and will influence the performance of the pump module. This is especially true for...
This Information Applies To: Agilent G1362A and G7162A/B Refractive Index Detectors
Issue:
The amount of light falling on each of the light receiving diodes is out of balance. You may get the system message "unbalanced diodes".
An incorrect signal...
This Information Applies To: All Agilent G7120A 1290 Infinity II High Speed Pump modules.
Issue:
Required when:
The inlet valve is defective.
A pressure or leak rate test in Lab Advisor suggests the inlet valve may require replacement.
If...
This Information Applies To: 1290 Infinity (G4226x) and High Performance Autosamplers (G1367x)
Issue:
The Peristaltic Pump needs to be replaced if it has stopped working due to worn tubing, if it is leaking, or as part of annual maintenance of the...
This Information Applies To: Agilent Autosamplers G1313A, G1329A/B, G4226A, G1367A/B/C/D/E, G7129A/B/C.
Issue:
If during initialization or during a sequence, the "Metering Home Failed" error occurs, this article will guide through the procedure...