The tune evaluation criteria are benchmarks that GCMS instruments typically pass.
"Designed for" and "works with" are two different things. The tune evaluation was created before the Extractor Source and High Efficiency Source. These ion sources get…
Hello, we were not able to tune the instrument at all. There was so much noise at low mass that it fails the initial quad coarse mass calibration. We think it is PEG contamination, possibly also PPG, but a number of masses correspond with sodiated PEG…
I have a G4226A autosampler with a recurring error message. Movement of needle into seat failed [EE 4714, 3204]
This error started after the autosampler had been repaired by a field engineer. The main board had to be replaced; the computer was unable…
Hey Ryan, try the following. Normally, the valve command failed is coming as a result of the position not found. Overtightened screws are a typical result if you have done maintenance before (happened to me the first time...). Tighten the screws each…
I am trying to quantify ethyl lactate in ethanol 20% (remainder water). When I run multiple injections, the RSD is 6-8% for the ethyl lactate peak. The ethyl lactate standard should be 0.2% v/v. We typically test samples that are 95-100% ethanol and use…
Hi, I am using Agilent 7820A GC-FID with EZChrom Elite v3.3.2. software. After the completion of each sequence, I would like to automatically generate a .text file along .dat file. So far, after the sequence has ended, I process the sequence and then…
Good Evening, I realize this is a bizzare question but basically what we have is a Dean Switch GCMS system and we use cut windows to determine when the best time is to switch from column 1 (inlet to switch to 3rd column - vent) to column 2 (inlet column…
I think that, with this version of the software, there are configuration files stored in the "instrument number folder", e.g. C:\Chem32\n I was going to suggest that you try to delete/rename the config.reg file, having closed all instances of Chemstation…
Hello,
We have an agilent 6545. Today when we are doing a mass calibration check, the masses of the negative tune ions seems to be shifted (For example 1633.9988 is now showing 1639.2109 and so on for the other ions) and mass calibration check seems…
Actually, you have to be sure that it's detector problem or not.
And if still problem persist and after changing lamps intensity test, wavelength test failed again then you have to call to your local agilent support to check electronics and optics etc…
This Information Applies To: Agilent OpenLab ChemStation
Issue
When launching OpenLab ChemStation Online or Offline session, the following error messages “ ChemStation ChemMain has stopped working ” or " There is a problem with Adobe Acrobat/Reader...
This Information Applies To: Agilent 5200/5300/5400 Fragment Analyzer, Agilent Femto Pulse, Agilent ZAG DNA Analyzer
Issue: The instrument encounters a run error, Run Aborted, Position fault: Did not reach target Z position ( Figure 1 ) . This error...
This Information Applies To: 5200/5300/5400 Fragment Analyzer, Femto Pulse, ZAG, Oligo Pro II
Issue:
This article explains the steps to take after installing a brand new array in the Agilent 5200/5300/5400 Fragment Analyzer, Femto Pulse, ZAG, and...
This Information Applies To: Agilent 5200/5300/5400 Fragment Analyzer systems, RNA kit (15 nt) (p/n DNF-471-0500/1000), HS RNA kit (15 nt) (p/n DNF-472-0500/1000), Small RNA kit (p/n DNF-470-0275)
Issue
Which kit should be used to analyze single...
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...