Results 271 to 280 of about 31,293 (301)

Diffuse reflectance spectroscopy—Important developments

Mikrochimica Acta, 1988
Effect of front surface reflectance is incorporated into standard Kubelka-Munk theory of diffuse reflection. A method of obtaining the absorption coefficient independent of scattering coefficient is presented.
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Iron-Adjuvant Interactions Observed with Diffuse Reflectance Spectroscopy

Journal of Pharmaceutical Sciences, 1968
Numerous adjuvants have been screened for the existence of chemical and physical interactions with iron compounds. Results indicate that calcium hydroxide, magnesium hydroxide, magnesium oxide, magnesium carbonate, magnesium citrate, zinc oxide, and potassium iodide do undergo large spectral and visual color changes on equilibration with ferrous ...
M, Bornstein, J L, Lach, B J, Munden
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Detection of propranolol in pharmaceutical formulations by diffuse reflectance spectroscopy

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2008
This paper describes an analytical reflectometric method that has an objective not only the industrial quality control but also to detect possible falsifications and/or adulterations of propranolol in pharmaceutical formulations. The method is based on the diffuse reflectance measurements of the colored product (III) of the spot test reaction between ...
Gotardo, Mara Andreia, Tognolli, Joao Olimpio, Pezza, Helena Redigolo, Pezza, Leonardo   +3 more
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Medical applications of reflectance spectroscopy in the diffusive and sub-diffusive regimes

Journal of Near Infrared Spectroscopy, 2018
Diffuse reflectance spectroscopy is a widely used technique for medical applications that may analyze the optical characteristics of biological tissues. By using diffuse reflectance spectroscopy, different tissue types can be distinguished based on specific changes on reflected light spectrum that are a result of differences on a molecular level ...
Sharmin Akter, Md. Golzar Hossain, Izumi Nishidate, Hisanao Hazama, Kunio Awazu   +4 more
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Diffuse Reflectance Spectroscopy

C R C Critical Reviews in Analytical Chemistry, 1971
Roland W. Frei, Harry Zeitlin
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Does the Spectral Format Matter in Diffuse Reflection Spectroscopy?

Applied Spectroscopy, 2009
Near-infrared, and more recently, mid-infrared diffuse reflection spectroscopy (more commonly and erroneously called reflectance spectroscopy) have come to be extensively used to determine the composition of products ranging from forages and drugs to soils. In these methods, spectra are generally collected as reflectance or R and transformed to log (1/
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Theory and Applications of Diffuse Reflectance Spectroscopy

1965
At present there are at least 100 papers in the literature in which the diffuse reflectance method is used without question to obtain approximate absorption spectra of solids in the visible and near UV, or in which attempts are made to overcome the recognized limitations of the method, namely, that diffuse reflectance spectra are not always identical ...
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Elastic- Scattering Spectroscopy and Diffuse Reflectance

2003
Judith R. Mourant, Irving J. Bigio
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Diffuse Reflectance Spectroscopy and Imaging

2016
A.J. Moy, J.W. Tunnell
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Second derivative diffuse reflectance spectroscopy for estimating tissue hypoxia

OSA Continuum, 2021
Wesam Bachir, Omar Hamadah
exaly