This is a compilation of some of the most useful GPC/SEC System resources, including recommended column and standards, software packages, theory and operation, user manuals and troubleshooting guides.
GPC and SEC Columns & Standards for Polymer & Plastic…
Hi martin.adams , you are exactly right, the peak width is small, therefore it is not giving the final S/N value. When I manually integrated the peak by increasing the peak width, it gave the value. It seems i need to fix the time range for the baseline…
Hi LD,
You are very welcome! Table 25.2.1 in the paper above gives recommendations. You can also take a look at our Cell Publication Database to see what others have done as far as this.
Thank you and let me know if you have any other questions…
Join Agilent's karen.krauel-goellner , kenboda , and other industry experts as they discuss and respond to your questions during this year's DDG webinar series. This is our 14th consecutive year of online meetings! Connect with our experienced panelists…
Daniel,
I'm not sure what you mean by the high potency zone here. Can you elaborate?
If this is a suspension, there are multiple thing to consider. You may want to listen to the suspensions webinar on dissolution.com, I believe it was a 2018/9 webinar…
Shin, it depends on what you're looking for here. The 250mL CP vessels should have articles online that you can search where they are used as it is compendial. In general, we do have a small volume webinar at: Dissolution: FoundationBeyond (on24.com)…
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...