Hi galderson,
that's a typical "it depends" answer. For the carrier gas line I assume you use at least a 5.5 or even 6.0 gas quality? Anyway depending on the gas quality there are different concentrations of impurities:
Now you need to…
We are using EZChrom and two separate samples, so as to increase throughput and to limit solvent use. 7890A/7683/7683 ALS with dual FID. Thanks, Charles
We have been using an Agilent 7890B GC-MS with FID TCD equipped with an autosampler (ALS) for analysing liquid hydrocarbon samples. I would like to analyse gaseous samples of CO, CO2 and H2 in the future. Is it possible to manually inject gas samples…
Hello, I am looking for some advice on how to troubleshoot a small air leak in a 7010 triple quad. The leak is small enough that using an an air can at several of the check points can't detect a leak. So far I changed the side plate o-rings, vent valve…
I am new to Agilent forum, We got a new GC 7820 with FID detector. I am using Open Lab CDS chemstation Ver 2.2, if you upload video turorials for this version that would be really helpful. For your information I got about e familiarisation disk, but I…
Hello Guys, I am using Agilent 7890a GC with an FID detector. Last week I saw that there are few ghost peaks in my chromatogram, so I decided to bakeout the column. After baking the ghost peaks disappeared but now I see and increase in the peak towards…
In the ChemStation calibration table you can set Peak Qualifiers when using multiple signals. The ratio of the signals is calculated and compared for each compound. In the classic report this is then used also for peak identification. I tried building…
Thank you James, The software that we have, runs in a very old HP computer with Windows 2000 PRO. The equipment´s software only runs in this computer and it has had many fails lately. For it reason, we would like to buy an updated software that it can…
I’m having problems with my injector. It will move up and down to the seat with no problem but will throw an error and not move down to a sample vial. Errors “Command from COSY list rejected (EE 4080,3061)” “Needle down failed (EE 4018, 16)” Also if you…
I have GC-7890B -TCD -FID . I want to maintain the flow of gas sample to be same as calibration gas flow . Are there any option in GC to give same flow of sample and calibration gas or shall i use flow meter at the outlet of GC .
This Information Applies To: Agilent OpenLab CDS
Issue
Reports in OpenLab CDS can be printed or saved manually in Data Analysys, or automatically during reprocessing, or acquisition.
Requirements
The user needs the following Roles and Privileges...
This Information Applies To: Agilent 5975 and 5977 Series GC/MSD systems.
Issue
During tuning, MassHunter prompted the error message: "MSD Fault- RFPA Difficulty", and tune action stopped.
Steps to Follow
Try to reconfigure the GC/MS....
This Information Applies To: Agilent OpenLab CSD 2.5 and above
Issue
The integration optimizer helps find a suitable set of integration events. It allows integration parameters to be tuned via sliders (peak width, slope sensitivity, height reject...
This Information Applies To: 2100 Bioanalyzer, 2100 Expert software
Issue
The Agilent 2100 Bioanalyzer system run ends prematurely and the following error appears in the logbook: Run aborted on port x. Instrument error occurred on port x, Unusual...
This Information Applies To: 2100 Bioanalyzer, 2100 Expert software
Issue
The Agilent 2100 Bioanalyzer system electropherograms in the Agilent 2100 Expert software have a wavy, uneven baseline ( Figure 1 ).
Figure 1. Wavy, uneven baseline on Bioanalyzer...
This Information Applies To: Agilent AriaMx systems.
Issue
When IP addresses of an AriaMx instrument are reassigned, it will appear under the new and the previous IP address in the AriaMx Instrument Explorer. This situation can be prevented using...
This Information Applies To: Agilent AriaMx real-time PCR system
Issue
Sometimes, for support purposes, it is necessary to send the diagnostic test result file to Agilent support representatives.
This file contains detailed information about the...
This Information Applies To: Agilent AriaMx real-time PCR system, AriaMx Real-Time PCR software
Issue
How to change the discovery protocol port in the AriaMx software.
Steps to Follow
The AriaMx software uses the UDP Broadcast protocol for...
This Information Applies To: Agilent AriaMx real-time PCR system
Issue
The instrument diagnostic tests should be run whenever it is suspected that there could be a fault with the instrument hardware.
Background
The instrument diagnostics consist...
This Information Applies To: Agilent AriaMx real-time PCR system
Issue
Error 45 is displayed on the AriaMx instrument touch screen.
Background
Error 45 is shown when the temperature recorded by one or more thermistors is outside the expected...