The boxes of standards should have shipped with a Certificate of Analysis enclosed. If you go to Agilent.com, you can search on the part number. A number of the hits are CofAs from different batches. part 5080-8858 CofA Lot CF-4631W.pdf (agilent.com)…
Dear Colleagues,
I have GC-FID 8890 and i'm using Gas saver feature but I'm observing when I change time of gas saver , the retention time is changed.
for instance, I set gas saver at 20 ml/min after 2 min then inject methanol and the RT is 4.74 but…
You can swap out cylinders to do it, but that means a lot more tubing, etc. to purge when you want to run. With the EPC unit, you would simply load the appropriate method to use it and the switch is done at the instrument. Much less tubing to purge and…
Carbon disulfide is another option for wash solvent when running naphtha or crude oil samples. It's response on FID is low compared to hydrocarbons, so there should be little to no response if some residual is in the syringe.
Hi Lance.
Setting the FID to 5 Hz fixed the peak noise issue. I did notice however that when lowering the makeup flow on the FID < 5 ml/min (set it at 3 ml/min) there was loss of sensitivity in the FID. I set it back to 25 ml/min and the sensitivity…
Ah, and I think the issue has to do with that I have 2 autosamplers, and 3 columns (MS at back, and 2 different FID columns at front using a 2way splitter). So the MS signal is in the subsequent folder, the FID1 signal is in the correct folder, and FID2…
My knowledge of GCs is extremely limited. Currently we analyze for n-pentane only. The program was already set-up when I started working here.
Yes, an FID is present
1. Sampling vessel type unknown at this time.
2. I am expecting the range to be…
hi all,
we have ICP-MS 7800 and getting error 1445. The content of the error is as follows:
"1445, Error: Plasma gas flow rate is too low." We can't ignite plasma.
Gas valves and gas line have been checked and there is no problem.
Does anyone…
Hello!
It would be very good to get step by step instruction and definition of each row on Splitter calculator and other calculators to configure our system.
The system uses SCD and FID detectors.
Target is to get ratio 3:1 between SCD and FID for…
I'm running a GC(7890A) / MS(5975C) with MassHunter Acquisition software. I automate much of my data analysis in Python by exporting the GC signal (FID) to .csv, and then exporting the MS signal using 'Export 3-D Data...' in MSD Productivity Chemstation…
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 ...