After most MSD maintenance (filament change/switch, source cleaning, etc...) I seem to have an issue with the baseline dropping in series (offset pattern) for up to 2 weeks afterwards. I'm new to this machine, but I'm in the process of slowly changing…
Hi, I am using a batch file to reprocess data under a different method. The integration and events table look correct on the screen. I have adjusted all of the batch settings options, but the final report only includes the sample information without any…
Hi there, I've recently started using a GCMS (7890A + 5975C MSD). The tune has failed and the GC shows a flat line at 0.5 whenever a sample is run. I've attached all relevant photographs I could think of, including the GC spectra where it all stopped…
I've recently been running into some problems with performing SureMass conversion of data collected on a 6546 LC-QTOF. I'm collecting both profile and centroid MS data using the default data storage thresholds.
Initially, I was running SureMass conversion…
Good morning, fellow colleagues. I have started to use MassHunter B.04.00 with my 6520B LC-QTOF. I am having some trouble setting up the diode-array detector on the HPLC from MassHunter. When loading in a HPLC method, the computer responds, Failed to…
Hello Nur5ik
Thank you for your question.
Disconnect or loosen the sample probe and rerun the "restriction and pressure decay test".
If you pass the first step, sample prove might be plugged. You need to change sample probe.
If the same step…
Hi Everyone,
Please can you help me. We have been having repeatability problems on the HP7890B for a long time and can't get to the bottom of it. Analysing for VOC. I have run lots of RSD measurements (10 injections). A common thing we are seeing…
What are the typical use cases of the Resolve handheld Raman analyzer?
Resolve is a highly sensitive handheld Raman-based chemical identification system that offers real-time detection and identification of unknown military, commercial and homemade…
Hello, I've been spending time getting my university's recently donated LCMS up and running, and I've been obtaining good results. This morning, however, the LCMS has been throwing errors every few minutes that's disrupting runs and ability to auto tune…
Well, I thank everyone for their help. I am learning, and so I set the DIP switches were pushed into 1,2,8 only high. Then restarted. It restarts and then fails. The problem is that the Lab Advisor is running via RS232 and it stops communicating because…
This Information Applies To: Agilent 6820, 6890, 7820A GC systems with a Split/Splitless (SSL) inlet
Issue
Non-volatile sample matrix components will accumulate in the inlet liner and impact on analytical performance. The inlet liner should be changed...
This Information Applies To: Agilent headspace samplers (HS)
Issue
GC cycle time needs to be calculated correctly. Too short a GC cycle time will reduce sample quality and possibly stop the analysis prematurely. Too long GC cycle time can cause...
This Information Applies To: Agilent 7820A GC
Issue
7820A GC is designed with simplified keypad that comes with five buttons. They are Stop, Prep Run , Start, Up and Down arrow buttons. Changing the IP address requires a different method compared...
This Information Applies To: Agilent Single Needle Autosamplers
Background
Sometimes the user may observe liquid flowing from Port four on the autosampler injection valve. During an injection sequence, it is normal to have liquid from port four...
This Information Applies To: Agilent 4200, 4150, 2200 TapeStation systems
Issue
Can I run an assay using the ladder or sample buffer from a different assay if I have run out of the appropriate assay ladder or sample buffer? Is it possible to run...
This Information Applies To: Agilent ICP-MS 7700, 7800, 7850, 7900, 8800, and 8900 systems
Issue
Peristaltic pump tubing that has lost its elasticity will not deliver the sample to the nebulizer correctly. When the pump tubing appears limp or flattened...
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...