1 uL is injected for PAH.
We do change the liner often and are using the one from all the app notes (with glass wool). We haven't tried a dimpled but do use a dimpled with the PBDE method.
After doing a bunch of troubleshooting over the last few…
I'd like to bump this thread up to the top because in our lab we have had the same problem, and our amazing IT guy was able to solve it!
It turned out that on the PC where the Data Analysis (same version as olabanalyst ) was faulty, it had been installed…
Hi everyone. There are some doubts that I would like to clarify because we're experiencing some drift and sensitivity problems and it may help.
We've already cleaned the cones, lenses and sample introduction system, including the torch.
1) There is…
The peak to the left in the Lithium window is Li6. This is from internal standard solution. Li6 abundance is typically very low and should not be larger than the Li7 peak. When you run start the plasma, is the internal standard (ISTD) line in a nitric…
Hi kalle-h,
Has the method worked well for you in the past? Any changes recently like column trims? Sometimes small pieces of column can get caught inside the modulator fittings and impede flow, which has negative effects on our data.
If your peaks…
Hello brandon.mendoza.ardena ,
It would be hard to tell, not seeing it or hearing it in person. But a good start would be to make sure there is nothing in the carousel that might cause that (broken vials, caps, or various other debris).
Could also…
Hello Durjoy123 ,
The logic board for 7890A+ does not have the same part number as the 7890A. I wouldn't hazard a guess as whether it will "work" or not. It seems like it does in your case.
But as a general rule I would stick to the board part number…
Check out our new article titled Mastering Pressure Management in GPC/SEC Systems , which has been published in the April issue of the Column . The authors are Dr. Daniela Held and Dr. Michael Krämer .
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...