1 uL is injected for PAH.
We do change the liner often and are using the one from all the app notes (with glass wool). We haven't tried a dimpled but do use a dimpled with the PBDE method.
After doing a bunch of troubleshooting over the last few…
I'd like to bump this thread up to the top because in our lab we have had the same problem, and our amazing IT guy was able to solve it!
It turned out that on the PC where the Data Analysis (same version as olabanalyst ) was faulty, it had been installed…
Hi everyone. There are some doubts that I would like to clarify because we're experiencing some drift and sensitivity problems and it may help.
We've already cleaned the cones, lenses and sample introduction system, including the torch.
1) There is…
The peak to the left in the Lithium window is Li6. This is from internal standard solution. Li6 abundance is typically very low and should not be larger than the Li7 peak. When you run start the plasma, is the internal standard (ISTD) line in a nitric…
Hi kalle-h,
Has the method worked well for you in the past? Any changes recently like column trims? Sometimes small pieces of column can get caught inside the modulator fittings and impede flow, which has negative effects on our data.
If your peaks…
Hello brandon.mendoza.ardena ,
It would be hard to tell, not seeing it or hearing it in person. But a good start would be to make sure there is nothing in the carousel that might cause that (broken vials, caps, or various other debris).
Could also…
Hello Durjoy123 ,
The logic board for 7890A+ does not have the same part number as the 7890A. I wouldn't hazard a guess as whether it will "work" or not. It seems like it does in your case.
But as a general rule I would stick to the board part number…
Check out our new article titled Mastering Pressure Management in GPC/SEC Systems , which has been published in the April issue of the Column . The authors are Dr. Daniela Held and Dr. Michael Krämer .
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...