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…
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…
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…
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…
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.…
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 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…
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: Agilent 6000 Series LC/MS systems.
Issue
Checking and adjusting the nebulizer needle is part of regular maintenance or troubleshooting tasks. It is suggested when there is an issue with nebulizer spray shape or spray...
This Information Applies To: Agilent Single Quadrupole LC/MS systems controlled by OpenLab CDS software
Issue
How to check and recognize the current Instrument Status of your 6100 Series and InfinityLab LC/MS systems using OpenLab CDS software....
This Information Applies To: Agilent LC/MS Systems
Issue
Contamination of the tune mix or the Calibrant Delivery System (CDS) of your LC/MS system can cause Autotune failures and drops in sensitivity due to ion suppression.
Items Required...
This Information Applies To: Agilent LC/MS Systems
Issue
When there is suspected contamination of the CDS, low tune response, or possible blockage in the CDS, flushing the Calibrant system may be required.
Warning : This procedure risks...
This Information Applies To: Agilent LC/MS System
Issue
Instructions on how to check the level of calibrant in your LC/MS system, and refill the calibrant bottle if necessary.
Requirements
Checking the level of calibrant should be performed...
This Information Applies To: Agilent 6100 Series LC/MS Instruments
Issue
Instructions on how to fill the calibrant bottle in Agilent 6100 Series LC/MS Instruments when calibrant levels are running low.
Background
The ability to autotune your...
This Information Applies To: Agilent 6000 Series LC/MS systems
Issue
The article details the correct tuning mix to use according to your LC/MS system and the source type installed on your system. In cases where Agilent tuning mixes need to be diluted...
This Information Applies To: Agilent 7693A, 7650A, and 7683 Series automated liquid samplers
Issue
GC software or GC LED display shows ALS Failure code 245: Autosampler front tower plunger error or ALS Failure Code 945: Auto injector back tower...
This Information Applies To: TapeStation ScreenTapes and reagents
Issue
Using the search tool on Agilent.com to locate the declarations of conformity (DOC) for Agilent ScreenTapes and Test-Tapes, certificates of conformity (COC) for TapeStation...
This Information Applies To: Agilent 7693A Automatic Liquid Sampler
Issue:
The Automatic Liquid Sampler (ALS) system calibration process aligns the sample tray with the injector turret position to enable vial transfers without incident.
Calibration...