Technical data

Understanding Your Agilent ChemStation 261

System Verification

Verification and Diagnosis Views

Verification test results are saved in binary format to the default subdirectory:

c:\CHEM32\1\Verify, together with the method and data files. The Verify

subdirectory is at the same level as the sequence, methods and data

subdirectories. You can send the results to a printer or to a file. The test

results, including a combined verification test result, are rated as either pass

or fail.

The following verification test components are available:

Digital Electronics (Agilent 1100/1200 Series DAD only)

A test chromatogram is stored in the diode-array detector. This chromatogram

is sent to the ChemStation after it has gone through the same preprocessing

steps as normal raw data from the photodiodes. The resulting data are

compared to original result data stored in the ChemStation for this test

chromatogram. If there is a mismatch the test fails. This test ensures that the

DAD electronics which do the data preprocessing are still functioning

correctly. As a stored test chromatogram is used, the lamp or the diode array

are not part of this test. They can be checked with the “DAD Test Function” on

page 265.

Peak Integration

The data file is integrated again using the original method. The results are

compared to the original integration results stored in verification register. If

they do not match, the test fails.

Compound Quantification

The compounds in the data file are quantified again. The results are compared

to the original quantification results stored in the verification register. If they