Abstract

Diffuse reflectance spectrophotometry of particulate samples is affected by a number of error sources if the particles have appreciable diameters. Foremost among these are the spectral distortions that arise when individual particles become optically thick. Current practice avoids this error by working in the near-infrared spectral domain, where reduced absorptivity usually insures that the particles will be optically thin.

Optical diffuse reflectance accessory for measurements of skin tissue by near-infrared spectroscopy

R. Marbach and H. M. Heise
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