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Miniature near-infrared spectrometer for point-of-use chemical analysis

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Miniature near-infrared spectrometer for point-of-use chemical analysis

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  • Author: Donald M. Friedrich, Charles A. Hulse, Marc von Gunten, Eric P. Williamson, Christopher G. Pederson, Nada A. O'Brien
Point-of-use chemical analysis holds tremendous promise for a number of industries, including agriculture, recycling, pharmaceuticals and homeland security. Near infrared (NIR) spectroscopy is an excellent candidate for these applications, with minimal sample preparation for real-time decision-making. We will detail the development of a golf ball-sized NIR spectrometer developed specifically for this purpose. The instrument is based upon a thin-film dispersive element that is very stable over time and temperature, with less than 2 nm change expected over the operating temperature range and lifetime of the instrument.

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