1.0 What is the significance of detector noise during GC calibration 2.0 What is the impact if it fails 3.0 What is the difference between signal to noise ratio and detector noise and drift
Yes, it is the constant flow mode. The following is the method I am using: Carrier gas: Helium Carrier gas flow rate: 1 mL/min (constant flow) Injection volume: 1 μL Injection port temperature: 250 °C Split injection ratio: 30:1 Initial oven temperature…
The Agilent Equipment Qualification Plan (EQP) for OQ is freely available on the Agilent website for potential customers to review. I have attached the standard EQP OQ for GC
Hello All, Not certain if this is the proper location for such a question, so please feel free to indicate the correct location if I am in error. Issue: Difficulty with GC Chromatography and irreproducible injections - Specifically, the chromatography…
Hi Norbert Thank you for your quick response. As you said we are using a GC Agilent 7890 with a Agilent headspace. We have an issue with the RSD. The first 5 injections are really good but after inject a sample the next STD injection to close the run…
I have an Agilent 7890A GC-FID with dual split/splitless inlets and detectors configured with a 0.53 mm ID capillary column. My instrument keeps giving me the message "front inlet pressure, system shutdown". The front inlet cannot maintain pressure and…
Maintenance have been done on the P&T, the buller is cleaned, the trap have been change in august 2016, moisture trap in december 2016. The method we're using is the method used here over years...Never had this kind of problem... The GC column had been…
Hi hennindm, Congrats on your 8890 purchase! The new GCs are designed to be used both in local settings with a computer near the instrument, and remotely, so the best fit was to build the data access into a workflow that permitted both, aka the browser…
Hi Kristen, Thanks for the speedy reply and links, really useful. Everything parts wise appear OK. The ALS syringe (5ul gold syringe barrel ( 5182 0836) with 0.32um 26-32/42 cone needle (5182-0831)) is listed under 7673/7683 On Column autosampler syringes…
This Information Applies To: Agilent ICP Expert software.
Issue
The software version is often asked and is a valuable information: to see if any updates are needed, if certain options are available etc.
Steps to Follow
Launch ICP Expert...
This Information Applies To: Agilent OpenLab CDS
Issue
This article provides step-by-step instructions to calculate peak-to-valley ratio in OpenLab CDS.
Background
The peak-to-valley ratio is calculated to indicate the quality of peak separation...
This Information Applies To: Agilent 6500 Series Q-TOF LC/MS systems, MassHunter Workstation 10.1 or below and MassHunter Workstation 11.0 .
Issue
Fully reset the Q-TOF LC/MS system via a power cycle without venting. For users who experience slow...
This Information Applies To: Agilent 5200/5300/5400 Fragment Analyzer, Femto Pulse, ZAG DNA Analyzer, and Oligo Pro II systems
Issue
The volume of sample used by Agilent parallel capillary electrophoresis systems during a run.
Resolution
The...
This Information Applies To: Agilent 2100 Expert software, 2100 Expert Security Pack, 2100 Bioanalyzer
Issue
When opening the 2100 Expert software and using the Security Pack, the error message " Start of launcher application failed - The requested...
This Information Applies To: Agilent 6890, 6850, 7890, 8890, 8860, Intuvo 9000 GC systems.
Issue
The exchange of the ignitor in a Flame Photometric Detector (FPD) may be required in the following scenarios:
Preventive or periodic maintenance...
This Information Applies To: Agilent 1290 Infinity Quaternary Pump G4204A, 1290 Infinity II Flexible Pumps G7104A/C, and G7131A/C.
Issue
If the flexible/quaternary pump does not generate flow or build up pressure, it could be due to a stuck inlet...
This Information Applies To: Agilent 5200, 5300 and 5400 Fragment Analyzer systems
Issue
Separation times for the Fragment Analyzer for each array format and kit.
Resolution
Caution : The times in this article are the length of time...
This Information Applies To: Agilent 5200/5300/5400 Fragment Analyzer, Femto Pulse, ZAG DNA Analyzer, Oligo Pro II, ProteoAnalyzer systems
Issue
Guidance for installing the Agilent parallel capillary electrophoresis instrument controller and/or...
This Information Applies To: OpenLab CDS (version 2.x) system
Issue:
This article explains how to export OpenLab CDS 2.x data as Archived file.
For copying OpenLab CDS 2.x data to another Projects or another OpenLab CDS systems, you can use data...