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…
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
GC Inlet Maintenance
Find links and part numbers to the consumables used in the video here.
GC Septum
Inlet septa are used to maintain a leak-free seal at the GC inlet, even after repeated injections.
If the septum has a dimple, the dimple…
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…
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…
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…
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…
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 .
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…
This Information Applies To: Agilent AriaMx real-time PCR system
Issue
AriaMx touch screen displays error code 90 after the Instrument Health Check (IHC), which happens when the AriaMx is switched on, or after running the onboard diagnostic tests...
This Information Applies To: Agilent AriaMx real-time PCR system, AriaMx optical modules
Issue
AriaMx users can change which AriaMx optical modules are installed to upgrade the instrument capabilities or to troubleshoot.
Items Required
Any...
This Information Applies To: AriaMx real-time PCR system
Issue
Error 43 is displayed on the AriaMx touch screen. Error 43 is a voltage error and it normally indicates that the cartridge LED voltage or motor voltage being detected is abnormal. Sometimes...
This Information Applies To: Agilent 2100 Bioanalyzer system
Issue
Can I run qPCR samples containing Sybr® Green I on the Bioanalyzer?
Background
Sybr® Green I is an Intercalating Dye commonly used to detect amplification products in real...
This Information Applies To: Agilent 4200, 4150 and 2200 TapeStation.
Issue
Is it possible to analyze single stranded DNA (ssDNA) on the TapeStation? Which kit is the most suitable for analysis of ssDNA?
Resolution
Agilent does not offer any...
This Information Applies To: Agilent 4200 and 4150 TapeStation systems
Issue
How to Run the software installation verification on 4200 and 4150 TapeStation systems.
Background
The 4150 TapeStation model G2992A and 4200 TapeStation model G2991B...
This Information Applies To: Agilent 5200/5300/5400 Fragment Analyzer, and Femto Pulse
Issue
Perform a capillary alignment when a new array is installed in your Agilent Parallel Capillary Electrophoresis instrument. An alignment may also be performed...
This Information Applies To: Agilent 4200 and 4150 TapeStation
Issue
Are the Agilent DNA and RNA ScreenTape assays denaturing?
Resolution
The DNA ScreenTape assays in the TapeStation portfolio are not denaturing. Only the RNA and High Sensitivity...
This Information Applies To: Agilent LC pumps with manual purge valve.
Issue
A good practice before using a system is to purge the system to remove air. This is done by observing the clear tubing from the solvent bottle as well as the waste line...
This Information Applies To: ICP-MS MassHunter 4.x and 5.x
Issue
Unable to open a batch in offline data analysis, or the batch is empty.
If the ICP-MS MassHunter software closes unexpectedly, there is a power outage, or the ICP-MS and computer...