Dear All,
We are using NGA analyser as per GPA 2286 method using FID and TCD.
Could you please advice how to apply the bridging to correct the concentration from FID.
Hi again Raina,
as I already told you this cannot be done with just one column, especially with the CO2 concentration up to 20% and water included and the necessity to analyze H2. This is an application we normally build an analyzer for. You need at…
Hi guys, when I tried to run my sequence in GC-FID, the workstation showed "front injectors not detected", and under my method, the configuration showed no injectors. However, the parameters I entered for injection could be found in the GC (7890A) operation…
Hello taub .
I think it's a corner case issue and you need a support visit from agilent authorized engineer so please request a service visit as its seems that the error is hidden and not straight forward as you mentioned that you changed alot of things…
Hi everyone
In my company recently we update the Openlab Ezchrom to CDS 2,5.
We have a GC 7820A and when we analyzed Residual dissolvents we have a trouble because between 3 to 5 minutes the detector (FID) get shutdown and this signal of shutdown…
Hi Abdul,
From the picture, it appears your FID flame was extinguished. You can put a metal wrench or a mirror at the top of the detector to see if the exhaust contains moisture from the combustion, but a flat baseline at zero output usually means the…
This instrument is used mostly for FID analyses and the second injector is not working. That's the primary reason why the column will be disconnected most of the time. Also to reduce contamination of the ECD, but it sounds like that isn't a huge concern…
Good Day.
I have an issue to my result in tcd. My Sample is TOGA using Fid and tcd. now the issue is the detection of H2, N2 and O2 are late. before 4.2 min. now its 6.2. the column is new.
We need to use air generator for 8 GCs with FID Detector. Each FID uses 350 mL/min air. So for 8 FID, 2.8L air will be sufficient? Is it ok to go for an air generator that supply 3L of air/min or we need to go for a higher option? Kindly advise
Thank you for the reply, I will have a go at it tomorrow. So essentially I just need to change one of my internal standard compounds to a normal compound, and use that as a single point calibration? It just seemed logical that every internal standard…
This Information Applies To: Agilent OpenLab CDS (version 2.x)
Contents:
In the following procedure, you will find steps to create a multipoint ESTD calibration method with OpenLab CDS 2.X.
Steps to follow:
1. Load the Data
a. From Data...
This Information Applies To: Agilent MassHunter Quantitative Analysis Software
Issue
Chromatographic peak integration is a critical part of accurate and reproducible quantitative data analysis. The integrator type and the integration parameters...
This Information Applies To: Agilent 6200/6400/6500 Series LC/MS Systems
Issue
Instructions on how to fill the calibrant bottle on 6200/6400/6500 Series LC/MS Instruments when calibrant levels are running low.
Background
The ability to autotune...
This Information Applies To: All Agilent 6000 Series LC/MS Systems without a gate valve for ion capillary installation/removal.
Issue:
Installing the Ion Transfer Capillary after cleaning or replacement. For instructions for installing an ion capillary...
This Information Applies To: AriaMx Real-time PCR System
Issue
The saturation level is unique for each optical module after the offset of calibration factor and background calibration. The FAM, ROX, HEX, CY3 & CY5 optical modules will saturate at...
This Information Applies To: Agilent LC Systems
Issue
While it is possible to combine modules from different HPLC series such as 1100, 1200, 1260 or 1290 series to create a functioning LC system, there are some important topics to consider.
...
Fixes for the "RPC Server Unavailable" Error
Multiple Results
This Information Applies To: Agilent OpenLab CDS
Issue
When launching the instrument Acquisition screen/instrument session, there is an "RPC Server Unavailable" error.
Resolution
Accessing the Services App (Windows)
There are two ways to...
This Information Applies To: Agilent LC Pumps
Issue
If a user suspects that the gradient composition isn’t accurate and causes poor chromatography such as retention time shifts, late, early, no peaks or merging peaks. This article provides a quick...
This Information Applies To: Agilent 1290 Infinity (G4226A) and Agilent 1260 Infinity (G1367E) HiP Autosampler
Issue
Replacing the Needle Seat of the Autosampler is required when:
The needle seat is visibly damaged.
Leaks or blockages in the...
This Information Applies To: Agilent OpenLab CDS
Issue
This article discusses different types of bracketing modes and how to set up a bracketed calibration in Data Analysis for OpenLab CDS 2.x
Background
Occasionally, the instrument conditions...