User could not tune and was getting missing .xml errors. This error was observed in MassHunter Acquisition software B.07.00 on a GC QQQ but may be relevant in other revisions as well. Error in auto tuning! Missing XML file or invalid contents. Failed…
Slightly related: As part of a new lab setup, I decided I could greatly save having to replace cylinders if I ran my FID on a one-fifth flow of pure oxygen instead of compressed air.... Maybe you could guess the result. Every ignition was a detonation…
Your controller is going in Auto Tune
Autotuning condition is shown when the controller has delivered an output power level higher than a typical value, but the pump is still not reaching full speed value.
It does not matter if it is a normal start…
Hello! I followed this tutorial part D Linked Dual GC Signals 1 aliquot /cfs-file/__key/communityserver-discussions-components-files/152/0020.DualTow7890EnvMH.pdf to sample 1 aliquot through both the front and back autosamplers, both columns, to both…
I got a data sheet for my Agilent 7890 FID detector. The stated linear range is 10x7. This range I think should mean that from 1% down to 0.1 ppM the detector is linear for Tridecane. I figure concentration-wise in splitless mode - that works out to be…
It is a capillary, USP 401 The gas chromatograph is equipped with a flame-ionization detector, maintained at a temperature of about 260°, a splitless injection system, and a 0.53-mm × 30-m fused-silica capillary column bonded with a 1.0-µm layer of phase…
Hello, We are using Agilent 7890B GC/FID with Headspace sampler. There is a problem in FID unit of the system. In FID parameters, Temp is 220 C, H2 fuel flow is 30 mL/min, Makeup flow (N2) is 25 mL/min, He flow 1 mL/min. These are setpoints and actuals…
Hello howard_sanford ,
I tried clearing the preferences for IDBrowser, and it did work when I used the old PCDL, but the "m/z" column in ID Browser did not show anything. So, I did it again and for the second time, the m/z of features showed up, but…
In my experience, usually when a method fails to download to a 7820A GC it means that one of the zones on the GC is in a faulted state. This does not always get reported in the instrument actuals in ChemStation, so the best way to double-check this is…
The universal VUV detector has sensitivity better than an FID and similar to an MSD while allowing data acquisition across 12 different wavelength bands to focus on selected compounds of interest. It can be mounted directly on top of an Agilent 7890 or…
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...
This Information Applies To: Agilent G1312X and G7112X binary pumps.
Issue:
A blockage before the pressure sensor, e.g. in a pump head, will not give a high pressure or overpressure system error. Instead, the pump may show one of various error messages...
This Information Applies To: Agilent 1100, 1200, 1260 LC Pumps.
Issue:
The following procedure allows the cleaning of residue from the pump's check valves, often caused by polymerization of aged acetonitrile or salt-based solutions that may prevent...
This Information Applies To: Agilent LC Systems
Issue
After analyzing dirty or concentrated samples, some sample compounds may retain in the column and other parts of the HPLC system. If the column re-equilibration after each run is not enough to...