Metrohm Vision – Tutorial - Manual (Page 23)

 4 Qualitative Model Development
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 NIRS Vision Tutorial – Operation
Save Results
1. Click on Select  Save Results
2. If asked “Do you need to save Developed Qualify Method?” click on
[YES]
3. In the Library Method dialog box, click on [OK]
Repeat Qualification
1. Repeat the Qualification steps for “Magnesium Stearate” and “Stearic
Acid”.
2. Save the Results.
1.5 Library Validation – Testing the Library Model
Library validation is used to test the library model.
Open the Library
1. Click on Mode  Qualitative Analysis Library Validation
2. In the Open Library dialog box,
 click on xdslib
 click on [Open]
Vision opens the library and enters the Library Validation program.
Validate the Library
1. Click Library Run Validation.
2. In the Library Validation dialog box, click on [Start].
Vision will now start the Library Validation routine. In it, each sample in the
library is tested as an unknown for internal validation of the library.
Additionally, if samples have been saved in the Acceptance and/or Rejection
Set, they are also tested to verify that the library analyzes them correctly.
NOTE: If an Acceptance Set sample “Fails”, this is an indication that more
samples of that Product are needed. If a sample Passes ID and Fails qualitative
analysis, this suggests that the Product is indeed the correct Product but is not
of the same “Quality” as accepted in the past. This sample could be from a
new source or supplier.