AdvanceBio Spin Columns address the need for efficient sample preparation of proteins or oligonucleotides under aqueous conditions, preserving native structure with suitable ionic strength and pH. Users can easily and quickly remove excess salts or undesired…
Hi, I have a similar problem of the G7167A too. The needle push the septum into the bottom of the vial, then for the next injection it has an error of needle hit the vessel bottom. I was wondering may be the needle is knackered, bent? It will be interesting…
The Digest of upcoming webinars has been updated as of May 8.
The new Agilent Community Group, GPC/SEC Solutions Group hosted a webinar series in partnership with Dow in April: A Journey through SEC, Light Scattering, and 2D-LC for Macromolecules .…
The Introduction Service if purchased includes the following:
Customer guidance to reconfigure the GC from checkout to intended use, including a single injection of a QC standard for the desired method. In the absence of a pre-existing method, the…
In your acquisition sequence table for your calibration samples, is this selected?
Do you use the same name for your data analysis method over time? Are there multiple copies of it on your system? Did you start a new batch from the beginning or add…
Carefully remove the old O ring. There's a spot in the lower right hand edge that has an opening where you can very carefully pry it out. Do not scratch the aluminum manifold.
Use a solvent-dipped cotton-tipped swab to wipe out the entire O ring channel…
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...