Hi all :) For he experts here! I did my yearly maintenance (new gold seal, liner, column end cut to inlet and FID, new gas filters, ...). But since then, everytime there's a temperature change in the GC, the signal will show a sudden bump and then it…
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…
Hello MikeL ,
Just wanted to post what we discussed during your call with the support center so if anyone else sees a similar problem they will have some things to try.
There can be issues with copying and pasting fairly large amounts of information…
Recently, we connected the column (CP7429) to TCD and FID using a Y splitter. However, there is no signal response on both TCD and FID after manually injection of the calibration gas (containing H2, CO, CH4, C2H4, C2H6 in CO2). The carrier gas is Ar.…
i had faced this troubleshooting before
it is probably a software problem.
first close masshunter and double click ( remove masshunter process)
open the soft again and try to create another method with same parameters it should work
also try to…
When performing the Eukariote Total RNA test on the same chip we had some samples with very degraded RNA and one sample with what seems like good quality RNA but the software failed to give a RIN value for that sample. Is there a way to still measure…
Dear Colleagues, apologizing for frequently wondering but I first faced this problem. GC produces a signal without turning on the FID Detector!? Please look at the attached photo. After turning on the detector and then conditioning the column while the…
For many FID methods, 10-20 Hz data rate is sufficient unless you're doing a fast method of some sort. You need enough data points to define the peak correctly and not get any spectral tilt. Typically 15-20 points across the peak is enough.
Hello AGILENT family,
i have a few questions on the analysis of Pb in blood samples.
am failing to get the right concentrations of the QC sample 8ppb instead it’s reading 0.08 ppb and at the same time it’s also showing overange (0.08o) even when my…
I am a user of an Agilent 7900 ICP-MS. It has been working fine since last month, but today (Oct 13, 2022) the software was not able to connect to the instrument. When I try to connect the MassHunter software to the ICPMS by going to settings > mainframe…
Requesting Tune Control on your GC/MSD System Using OpenLab CDS
Multiple Results
This Information Applies To: Agilent Single Quadrupole GC/MS systems controlled by OpenLab CDS.
Issue
The OpenLab CDS user needs to request tune control before any tuning or vacuum control of the GC/MSD can be performed.
Steps to Follow
...
This Information Applies To: Agilent Lab Advisor Software
Issue:
When connecting your LC instrument with the Agilent Lab Advisor Software, a pop-up message may appear called 'License Check'. The message prevents you from connecting the Lab Advisor...
This Information Applies To: Agilent OpenLab CDS
Issue
When analyzing a sample, the chromatogram may show baseline drift. The obtained signal may be caused by analytes as well as by dilution solvents, mobile phases, additives etc. To get a cleaner...
This Information Applies To: Agilent OpenLab CDS
Issue
This article outlines step-by-step instruction to filter sample type using Enumeration in Reporting.
Prerequisites
The privilege Data Processing > Print results reports is required....
This Information Applies To: Agilent single quadrupole and triple quadrupole GC/MS systems
Issue
During troubleshooting, it can be useful to isolate the MS detector from the rest of the GC system (sample introduction, inlet, column etc.).
Background...
This Information Applies To: Agilent 6890/7890/7820/8860/8890 GC systems
Issue
Blanking off a GC detector can help locate the source of issues such as baseline noise, baseline spikes, elevated baseline, or detector output/performance issues.
...
Viewing MSD Temperature and Vacuum Values on GC/MSD Systems Using OpenLab CDS
Multiple Results
This Information Applies To: Agilent Single Quadrupole GC/MSD Instruments controlled by OpenLab CDS
Issue
Checking the MSD temperatures and vacuum reading is required when the instrument is pumping down or to check values during troubleshooting...
This Information Applies To: Agilent GC systems
Issue
Before most maintenance procedures, the GC must be set to safe temperatures, pressures, or flows. You can create and save the maintenance method in the controlling software or the GC itself....
This Information Applies To: Agilent 1100/1200 Series G1310A Isocratic Pump, G1311A Quaternary Pump, and G1312A/B Binary Pump modules
Issue
This article shows different options to troubleshoot low pressure or no flow issues in 1100/1200 series Isocratic...
Extracting Total Wavelength Chromatograms or Max Wavelength Chromatograms from 3D chromatogram data in OpenLab CDS
Multiple Results
This Information Applies To: Agilent OpenLab CDS (version 2.3 or later)
Issue
This article describes how to extract and reprocess Total Wavelength Chromatograms or Maximum Wavelength Chromatograms from 3D UV data in OpenLab CDS.
Steps to Follow...