Hello mipastor,
Thank you for your response. I think we do have problem with the MS2 heater. Agilent customer support hinted that it might be sensor problem or the board so service engineer will have to take a look.
The Digest of upcoming webinars has been updated as of April 23.
The new Agilent Community Group, GPC/SEC Solutions Group is hosting a webinar series in partnership with Dow in April: A Journey through SEC, Light Scattering, and 2D-LC for Macromolecules…
In the previous post, I talked about the merits of automated sampling in the dissolution workflow . Here, I will provide some information about how to validate your automated dissolution system, using the 850-DS Sampling station from Agilent as an example…
You might be able to use HPLC-SEC on those with an Aquagel-like column. Check these literature links for help:
https://doi.org/10.1016/0021-9673(71)80010-9
https://doi.org/10.1208/s12248-017-0126-0
You do this with a Restek column! You cannot get a better resolution by changing just parameters with this cphase. You need a different selectivity to have a chance, maybe use a DB-WAX UltraInert.
For glucose a 87H type is ok as it uses Ion Exclusion Chromatography for the separation, the phases contain benzenesulfonic acid group (and will interact with anions in ion exchange mode). Phosphoric acid does not interact with sulfonic acid groups as…
thanks for sharing the information. It saved my day. But to delete the mentioned file I had to call helpdesk to grant me permission. No way to delete with my regular credentials.
Agilent offers these two services for the IDP-7 Dry Scroll Pump: 1. The Agilent Rapid Exchange Service replaces your pump with a refurbished one • You can send your unit back (exchange) once the replacement unit arrives • Warranty period is 1 year from…
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...