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: 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...
This Information Applies To: Agilent G7167A/B Multisampler.
Issue:
Required when:
The needle is visibly damaged.
Leaks or blockages in the vialsampler are observed, especially between the needle and needle seat.
The limit for the needle...
This Information Applies To: Agilent Autosampler modules G1367A, G1367B, G1367C, and G1367D.
Issue:
The removal and installation of the needle assembly in these older autosampler modules can be tricky and may require patience and the correct technique...
This Information Applies To: All standard analytical scale Agilent 1100/1200/1260/1290 Infinity / Infinity II LC system configurations: Single Pump (Isocratic, Quaternary, or Binary) with Manual Purge Valve. Does not apply to systems with Agilent G7167A...
This Information Applies To: All Agilent LC modules (except hosted modules).
Issue:
When a module does not initialize correctly or it is not recognized by the software, it is recommended to call our Remote Support Representatives to troubleshoot...
This Information Applies To: All Agilent LC pump modules with MCGV installed (quaternary pumps)
Issue:
Shifting retention times: The composition of the mobile phase in liquid chromatography directly influences retention times. If any of the channels...
This Information Applies To: All Agilent liquid chromatography instruments, Lab Advisor
Issue:
The error message 'Could not open channel RD' pops up when performing diagnostic tests in Lab Advisor. Retrying the test is not helping.
Resolution...
This Information Applies To: Agilent Lab Advisor Software for any Agilent LC System.
Issue:
To successfully troubleshoot an Agilent LC system or module, the System Report is an essential resource. Agilent Support representatives may ask you to provide...