What are the detector voltages? Select the Hardware button, or Hardware/Dashboard from Task manager, and click the Detector image. Select EM setting. What are the voltages for Discriminator, Analog HV, and Pulse HV?
Was the instrument off, for an extended…
I have observed that when a method is transferred to a new system, you need to save it in the new system before using it. If you just copy the method and use it, sometimes it fails. Just by saving it, it makes it work. I guess it saves some defaults from…
I was never able to do glycols via headspsce in the past. The only way I was able to do them was direct injection and FID. 5890 using megabore column. Maybe you could try SPME.
Hi Lycrecia,
We checked the volume calibration section and we did the full range volume dispense, as described in the manual. However, we are not sure which value we should add to the actual volume in the volume calibration screen. Do we need to do…
I am running GC 6890 (FID detector) alongside G1888 headspace.
I had noticed 4 of my later eluting peaks got increasingly worse in terms of shape and reproducibility. After running blanks (no injection and also blank vials), it seemed like the cause…
it does not work,
I tried to install openlab v2.4 manually, the installation failed at the agilent platform in the install or upgrade content management part,
This is a 5977A that was built in mid-2015. How many runs on it? . High Energy Dynode (HED) related, Electron Multiplier (EM) related, signal related, or electronics related.
The first thing to try is to go into manual tune and turn OFF the HED. I'd…
Hello, Your question brings some additional questions for me. You mentioned that your rescans are failing eventhough the product is correct. Is your method robust enough. You should not see many fails in a batch if the instrument is properly operated…
Hello Andy, thanks for your answer. It would be possible, however we would like to automate our analysis as much as possible. A manual calculation of the concentrations, depending on the initial weight, would make us go a step in the wrong direction.…
hello,I had the same problem as you to make the sum of impurities, I searched in the forum and I found the following formulas, to be verified because I am not an expert in formulas but it worked
ListImpND (Type string, scope signal) If (Count(CurrentSignal…
This Information Applies To: 5975 and 5977 GC/MS systems with MassHunter Acquisition software
Issue:
High-quality GC/MS data requires a low, and stable background of air and water present in the MS analyzer.
This article demonstrates a systematic...
This Information Applies To: Agilent 5975 and 5977 GC/MSD systems with MassHunter Acquisition software
Issue:
High-quality GC/MS data requires a low, and stable background of air and water present in the MS analyzer. This article describes how to...
This Information Applies To: Agilent 5977A/B GC/MSD with MassHunter GC/MS Acquisition Software
Issue:
This article describes the procedure to safely vent (shut down) the 5977A/B GC/MSD with Electron Ionization (EI)
The MSD will be damaged by incorrect...
This Information Applies To: HES ion source in 5977B/C GC/MSD, 7010 triple quadrupole GC/MS systems
Issue
The filaments are replaced as part of routine maintenance, or when they break (zero output current).
Items Required
Gloves, nylon,...
This Information Applies To: Agilent 5977A/B/C GC/MSD
Issue
The Electron Multiplier Horn must be replaced when it is contaminated or the EMV value reaches 3000 V with a clean ion source.
Items Required
Electron multiplier horn (5977B/C:...
This Information Applies To: Agilent 5973/ 5975/5977 GC/MSD with rotary vane foreline pump
Issue:
The oil mist filter is recommended to be replaced annually. If the color of the filter has changed or there is smell from the filter, the oil mist...
This Information Applies To: Agilent EI Source
Issue:
During normal operation of the GC/MS, the EI SST/Inert ion source will need to be disassembled to proceed with abrasive ion source cleaning and / or routine replacement of consumable parts (filaments...
This Information Applies To: Agilent G7129A/B/C Vialsampler
Issue:
Replacing the needle and needle seat of the Vialsampler is required when:
The needle is visibly damaged.
Leaks or blockages in the vialsampler are observed, especially between...
This Information Applies To: Agilent G1311A/B/C, G7111A/B, Quaternary Pumps, and G1310A/B, G7110B Isocratic Pumps, G1312A/B/C, G7112B Binary Pumps
Issue:
How to diagnose no flow or no pressure issues on binary, quaternary, or isocratic pumps.
...
This Information Applies To: Agilent UV and RID detectors
Issue
A clogged flow cell causes high backpressure. The clog can be removed by flushing the system with solvents at high pressure. If you suspect a clog or experience high backpressure due...