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Chapter 8
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Absorbance, % Transmittance and Concentration Measurements
Thermo Scientific
Orion AquaMate Spectrophotometer User Manual
|
157
Absorbance Ratio
The Absorbance Ratio application measures the absorption ratio of two different wavelengths.
Reference wavelength correction is available to eliminate the effects of a sample matrix.
Typically used in quality control applications, an absorbance ratio provides a convenient and
quick diagnostic test for sample quality. This section covers:
•
Setting Up Test Parameters
•
Taking Measurements
•
Recalling a Test
Setting the Parameters for Absorbance Ratio Method
1.
Press the test key to access the Test Types menu.
2.
Press the ▲or ▼ key to highlight Absorbance Ratio and press the enter key.
3.
Highlight and change the displayed test parameters, including Test Name, Wavelength 1,
Wavelength 2 and Sample Positioner. See the
section for more information on
the test parameter settings.
4.
Press the Save Test function key and follow the onscreen prompts to save the test.