TY - JOUR
T1 - An Innovative Approach to Exploit the Reflection Spectroscopy of Liquid Characteristics
AU - Pelta, Ran
AU - Granot, Amihai
AU - Ben-Dor, Eyal
N1 - Publisher Copyright:
© 2017, © The Author(s) 2017.
PY - 2018/4/1
Y1 - 2018/4/1
N2 - Reflection spectroscopy, in the visible–near-infrared–shortwave infrared region (Vis-NIR-SWIR, 350–2500 nm), is a useful technology to extract chemical and physical properties of materials, but might be useless in identifying the spectral features of transparent or dark opaque liquids. Low reflectance values of a liquid reduce the ability to identify characteristic absorption features at specific wavelengths in the reflectance spectrum. In this study, we present a rapid and easy-to-use method to increase the measured reflectance spectrum and expose characteristic absorption features of a liquid. This was done by mixing the liquid with a white enhanced substance (WES). For this purpose, we used aluminum oxide (Al2O3) powder—a very bright (high albedo) substance and featureless across the entire Vis-NIR-SWIR region. The reflectance spectrum of the mixture—liquid and WES—was measured using a spectroradiometer. This procedure enabled to identify characteristic spectral features of the liquids that would have not been observed in the reflectance spectrum measured from the liquid alone.
AB - Reflection spectroscopy, in the visible–near-infrared–shortwave infrared region (Vis-NIR-SWIR, 350–2500 nm), is a useful technology to extract chemical and physical properties of materials, but might be useless in identifying the spectral features of transparent or dark opaque liquids. Low reflectance values of a liquid reduce the ability to identify characteristic absorption features at specific wavelengths in the reflectance spectrum. In this study, we present a rapid and easy-to-use method to increase the measured reflectance spectrum and expose characteristic absorption features of a liquid. This was done by mixing the liquid with a white enhanced substance (WES). For this purpose, we used aluminum oxide (Al2O3) powder—a very bright (high albedo) substance and featureless across the entire Vis-NIR-SWIR region. The reflectance spectrum of the mixture—liquid and WES—was measured using a spectroradiometer. This procedure enabled to identify characteristic spectral features of the liquids that would have not been observed in the reflectance spectrum measured from the liquid alone.
KW - Liquids spectroscopy
KW - Vis-NIR-SWIR
KW - reflectance measurements
KW - reflection spectroscopy
KW - spectroradiometer
KW - visible–near-infrared–shortwave infrared region
KW - white reflectance
UR - http://www.scopus.com/inward/record.url?scp=85044165708&partnerID=8YFLogxK
U2 - 10.1177/0003702817744543
DO - 10.1177/0003702817744543
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AN - SCOPUS:85044165708
SN - 0003-7028
VL - 72
SP - 643
EP - 646
JO - Applied Spectroscopy
JF - Applied Spectroscopy
IS - 4
ER -