Thanks for the feedback. I have re-optimized the lamp alignment, but I didn’t get much (if any) improvement. I also made some adjustments to the sample position, which I think helped a little. I think some users have been fiddling with the sample position…
Hi community,
maybe someone has an idea what I could do, before a technician comes over.
During my absence my colleagues told me that our HPLC (1260 Vialsampler, 1260 Inf II Flex pump, TCC, FC-AS, DAD) does show a peak shift of about 3 to 10 minutes…
So just to let everyone know, the SSD on this computer has now already failed. Seems like there was something wrong with the hardware to start with !. Let's hope a new SSD will fix this issue. -Francois
This is a chromatogram of my high standard, Still haven't gotten to the low. Note that this is actually just one compound injected on the sorbent tube. The compound is methyl methacrylate. The tube is Carbopack B,X. The library identifies the compound…
Hello, I apologize for the delay. A lot of times, autostart macro failed errors are caused by corrupt instrument config files. Try resetting the instrument configuration files in the instrument folder (\Chem32\x\, where x is the number of the instrument…
This article is a compilation of Frequently Asked Questions (FAQs) for Agilent's consumable products in the Chemistries and Supplies Division (CSD). FAQ categories include Filaments and Ion Sources , Gas Management, GC Columns , General , Inlets & Liners…
Hello, Is there an update available for the Chemspider library editor script? The script is named DownloadMolfilesFromChemspider.libedit and as the name suggests, downloads the mol files for each library entry from chemspider. The chemspider API appears…
Hello, Since each compound in your processing method would require a different resolution pass/fail threshold, I do not believe you would be able to set this up solely from the column properties on your intelligent report. I approached this by storing…
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
Sounds like the Cap EPC module or the EPC Pneumatics board may have failed. Do you have two Cap Inlets? If so. You can swap the two EPC Modules to see if that changes anything. I would lean towards the EPC Module has failed.
This Information Applies To: All Agilent Gas Chromatographs, 6890, 6850, 7890, 7820, 8890, and 8860.
Issue:
A quick reference guide on the capillary column installation for the GC.
Inlets
Detectors
Split/splitless inlet Purged...
How to Add a GC Instrument in Agilent OpenLab CDS (Ver 2.x)
Multiple Results
This Information Applies To: Agilent OpenLab CDS (Ver 2.x)
Content:
The following procedure shows how to add a GC instrument in OpenLab CDS (Ver 2.x).
Steps to Follow:
1. Open OpenLab CDS Control Panel, in the Instruments interface, select...
This Information Applies To: Agilent Intuvo 9000, 8860, 8890, 7890A/B, 7820A, 6890, 6850 GC Systems with Split/Splitless, or Multimode Inlets.
Issue:
This article describes how to replace the inlet septum for Split/Splitless and multimode inlets...
This Information Applies To: Agilent GC Systems
Issue
The data rate determines the number of sampling points across the chromatographic peak and the sample background. The data rate is based on the width of the analyte speak (in minutes) and the...
This Information Applies To: Agilent GC Systems
Issue
Excessive baseline noise can be introduced at different points including sample preparation, sample introduction, separation, and the detector. The excessive background can cause reduced signal...
This Information Applies To: Agilent GC Systems
Issue
Baseline instability that is not reproducible across multiple runs can be introduced at different points including sample introduction, separation, and the detector. The baseline instability...
This Information Applies To: Agilent GC Systems
Issue
Peak fronting is present in a chromatography peak when it has an excessive asymmetry with a leading edge. A normal peak is almost symmetrical.
Other chromatographic problems are identified...
This Information Applies To: Agilent GC Systems
Issue
A shift in retention time can occur for single, multiple or all peaks.
Other chromatographic problems are identified in Basic Troubleshooting for GC Systems . Regular maintenance of your instrument...
This Information Applies To: Agilent GC Systems
Issue
A change in peak size can occur for single, multiple or all peaks.
Other chromatographic problems are identified in Basic Troubleshooting for GC Systems . Regular maintenance of your instrument...
This Information Applies To: Agilent GC Systems
Issue
Peak splitting is when a single compound is shown in the chromatogram as two peaks usually unresolved, or one of the peaks is a shoulder.
Other chromatographic problems are identified in Basic...