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…
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 Atomic Absorption Spectroscopy Systems (240/280 Series Flame AA and 240/280Z/Zeeman/GTA 120 Graphite Furnace)
Issue:
This article includes recommended maintenance procedures to be performed daily, weekly or annually...
This Information Applies To: Agilent SpectrAA Software, Agilent 240/280 Flame Atomic Absorption Systems, 240/280 Zeeman Graphite Furnace Systems
Issue:
How to Reset Lamp Usage Counters or Add a New Lamp in SpectrAA
Caution : All physical...
This Information Applies To: Agilent GTA 120, Agilent 240Z AA Spectrometer, Agilent 280Z AA Spectrometer, Agilent 240FS/GTA120/PSD120/UltrAA System
Issue:
It is important to align the sample probe of the Programmable Sampler Dispenser (PSD) 120...
This Information Applies To: Agilent Flame AA Systems: e.g., 55B, 240FS, 280FS
Issue:
The Flame AA burner and burner components require regular cleaning to maintain system performance. Components include the burner, nebulizer, and spray chamber...
This Information Applies To: Agilent Flame Atomic Absorption (AA) Spectrometers (50/55/240/280 AA)
Issue:
How to clean a blocked nebulizer of a Flame AA, which may be causing low sensitivity or a sample uptake rate below 5 ml/min.
Steps to follow...
This Information Applies To: Agilent Graphite Furnace Systems (PSD 120/GTA 120/240Z AA/280Z AA)
Issue
Maintenance procedure for replacing the syringe and plunger of the PSD 120 sample dispenser for the Agilent GTA and Zeeman Graphite Furnace Systems...
This Information Applies To: Agilent AA (AA240, AA280) with Graphite Furnace Accessory (GTA)
Issue:
The Programmable Sample Dispenser (PSD) requires the sampling probe to be accurately aligned before the PSD can be used.
The PSD enables the...
This Information Applies To: All Agilent AA systems: 55B, 240FS, 280FS, 240Z, 280Z
Issue:
Optimizing the position of the lamp maximizes amount of light from the lamp passing through the optics to the detector, improving the signal-to-noise and the...
This Information Applies To: Agilent VGA 77, AA, VGA 77P, ICP
Issue:
The Agilent Vapor Generation Accessories VGA 77 and VGA 77P use high concentrations acids. The system needs to be thoroughly cleaned after each use.
The Vapor Generation Accessory...
This Information Applies To: All Agilent Atomic Absorption Spectrometry Systems (AA50, AA55, AA240, AA280)
Issue: This article describes when and how to clean an AA burner.
Background
For optimum and safe performance, burners (see Figure 1 ...