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Near Infrared Spectra with Sodium Chloride Optics

Volume 12, Number 4 (Aug. 1958) Page 127-128

Washburn, W.H.; Mahoney, M.J.


In the past few years the near-infrared spectral region has received a great deal of attention, and its value has been well established (1-6). Its use unfortunately, has been somewhat limited by dependence on instruments designed for use only in the region 0.2-3.0 microns, or by rather cumbersome prism interchanges in standard double beam infrared spectrometers. The purpose of this note is to point out that surprisingly good near-infrared spectra are available using a sodium chloride prism in a standard double beam instrument.