Metrohm NIRS XDS Interactance OptiProbe Analyzer User Manual
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18.
Run Reference Standardization to create a
new calibration for the newly-cleaned
internal reflectance reference.
(See section 7.1.2 for test instructions and
information.)
Always protect the Certified 99% Reflectance Reference from contamination:
•
Always clean the tip of the Interactance Reflectance probe thoroughly before performing
Reference Standardization.
•
Store the Reference Standard in its protective case between uses.
•
Avoid any introduction of dirt or contaminants into the surface of the Reference Standard.
Dirt and sample carryover will change the optical characteristics of the standard, which will
then affect how the instrument reads samples.
The quality of the instrument spectra depend upon proper Reference Standardization. This Reference
Standard has been calibrated on a Master OptiProbe instrument which reads on a scale of true
reflectance. The calibration for the Reference Standard is the linkage back to traceability, and is
essential for good library transfer with the OptiProbe.