This Reference Material is specially designed for the wavelengthqualification of near infrared reflectancespectrophotometers over the range 900 nm to 2600 nm.


Description and Discussion

Near infrared reflectance spectroscopy has become a widelyused tool in the analysis of food products. To provide aprovide a wavelength qualification tool for these instruments,this reference material uses a proven transmission referencein a 5 mm mirror – coated cell to simulate reflectancemeasurements. Used in this way the reference has an effective 10mm path-length. A proprietary organic matrix(TS5) is sealed by heat fusion into the far-UV quality quartzcell.

14 certified peaks are available for wavelength qualificationpurposes.

Approximate peak wavelength values (in nm) are: 991, 1155, 1447, 1652, 1693, 1861, 1948, 2060, 2111, 2248, 2353, 2373, 2385, 2536


Typical spectra


Note: The above values are for guidance only. Because the absorption bands are asymmetric, measured values will be spectral bandwidth dependent. The Calibration Certificateaccompanying each Starna NIR Reference gives actualvalues measured at bandwidths of 1.00, 2.00, 3.00, 4.00 and 5.00 nm, and only these certified values should be used for instrument qualification. On request, Starna can provide certified values at other wavelengths and bandwidth values.




Catalogue Number


  Catalogue Number 

Near Infrared Transflectance Wavelength Reference Cell.