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Near infra-red reflectance spectroscopy

Near infra-red reflectance spectroscopy was first used by Norris and Hart [54] for the determination of moisture, oil and fat in cereal products. A number of instrument companies, notably Technicon, have developed commercial instruments. The instrument replaces a series of chemical procedures by a signal measurement in each of six infra-red regions and reference to a suitable computer calibration. Such an approach offers... [Pg.136]

Baker, C.W. and Givens, D.l. (1992) The use of near infra-red reflectance spectroscopy (NIRS) for the evaluation of forages the application to undried silage. Animal Production 54, 507 (Abstract). [Pg.207]

Near infra red reflectance spectroscopy (NIRS) is becoming increasingly used for the analysis of nutrients in feedstuffs. It is very rapid and cost-effective and may eventually replace the slower chemical methods of analysis used currently in the feed-manufacturing industry. NIRS may also be used for amino acid analysis. Another method now being adopted widely in feed manufacture is to use predichon equations based on chemical or NIRS analysis to predict amino acid contents of some feedstuffs. The NRC (1994) published equations for the predichon of lysine, tryptophan, threonine,... [Pg.222]

S Lonardi, R Viviani, L Mosconi, M Bernuzzi, P Corti, E Dreassi, C Murratzu, G Corbini. Drug analysis by near-infra-red reflectance spectroscopy. Determination of the active ingredient and water content in antibiotic powders. J Pharm Biomed Anal 7 303-308, 1989. [Pg.548]

R. Frankhuizen, N. G. Van der Veen. Determination of major and minor constituents in milk powders and cheese by near infra-red reflectance spectroscopy. Milk Dairy J 39 191-207, 1985. [Pg.337]

Because chemical and structural properties of natural and artificial gems are very similar in this case, the possibilities of Raman and LIBS methods are rather limited. It was found that other laser-based techniques could be very effective for rapid spectroscopic discrimination between natural and synthetic emeralds, rubies, and alexandrite (Armstrong et al. 2000). The first one is DRIFTS (Diffuse Reflectance Fourier Transformed Infra-Red Spectroscopy) and the second one is NIR (Near Infra-Red) Spectroscopy. In some cases it was even possible to discriminate between gems made by different synthetic processes. Once again, there is a significant benefit to having two independent methods available. [Pg.579]

Spectrophotometry is one of the most popular modalities of spectroscopies that measure the intensity of transmitted and reflected light. The typical spectral range covered by high-end commercial spans from the near ultra-violet (X 200 nm) to the near infra-red (> 3 pm). This is the reason many use the term UV-VIS to designate spectrophotometry (the technique), or the spectrophotometer (the instrument). [Pg.51]


See other pages where Near infra-red reflectance spectroscopy is mentioned: [Pg.63]    [Pg.63]    [Pg.424]    [Pg.1262]    [Pg.170]    [Pg.171]    [Pg.15]    [Pg.336]   
See also in sourсe #XX -- [ Pg.2 , Pg.62 , Pg.134 ]




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