Metrohm Vision – Tutorial - Manual (Page 16)

1.1 Creating a Library 
NIRS Vision Tutorial – Operation 
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4 Qualitative Model Development
A qualitative model consists of a library of spectra of known products. A
spectrum of an unknown product can then be compared with the spectra in
this library. If a matching spectrum is found in the library, the unknown
product can be identified. The following steps are required for developing a
qualitative model:
1. Creating a library
2. Sample Selection
3. Developing an Identification Method
4. Developing a Qualification Method
5. Library Validation
1.1 Creating a Library
In Vision, a library is required for qualitative model development. For more
information on vision libraries, please read the Vision Reference manual
(8.102.8010EN).
Create a library
1. In the Data Acquisition Mode, click on Mode  Qualitative Analysis 
Sample Selection
2. Click on File  Library  New
3. In the Create New Library dialog box, enter the following information:
 Library ID “xdslib”
 Reference Standardized enabled
 Click [OK]
4. If asked “Create database C:\vision\xdslib”, click on [YES].
The name of the library will appear next to a grey cuvette in the Samples
View.
1.2 Sample Selection
The purpose of sample selection is to identify outliers as well as redundant
samples.