scholarly journals Quantification of Curcuminoids in Turmeric Using Visible Reflectance Spectra and a Decision-Tree Based Chemometric Approach

2021 ◽  
Vol 167 (16) ◽  
pp. 167528
Author(s):  
Hasika Suresh ◽  
Amruta Ranjan Behera ◽  
Shankar Kumar Selvaraja ◽  
Rudra Pratap
Keyword(s):  
Decision Tree ◽  
Reflectance Spectra ◽  
Chemometric Approach ◽  
Visible Reflectance

Effects of Storage Atmosphere and Heme State on the Color and Visible Reflectance Spectra of Salmon (Salmo salar) Fillets

2011 ◽  
Vol 59 (14) ◽  
pp. 7825-7831 ◽  
Author(s):  
Silje Ottestad ◽  
Oddvin Sørheim ◽  
Karsten Heia ◽  
Josefine Skaret ◽  
Jens Petter Wold
Keyword(s):  
Salmo Salar ◽  
Reflectance Spectra ◽  
Storage Atmosphere ◽  
Visible Reflectance

UV–visible reflectance spectra of nanocrystalline silver compacted under different pressures

2005 ◽  
Vol 341 (1-4) ◽  
pp. 216-220 ◽  
Author(s):  
Yanwu Lu ◽  
Hongfei Zhang ◽  
Fangxin Liu
Keyword(s):  
Reflectance Spectra ◽  
Uv Visible ◽  
Visible Reflectance

Cell for the Measurement of the Ultraviolet and Visible Reflectance Spectra of Powders

1963 ◽  
Vol 34 (3) ◽  
pp. 292-293 ◽  
Author(s):  
Lynus Barnes ◽  
Harry Goya ◽  
Harry Zeitlin
Keyword(s):  
Reflectance Spectra ◽  
Visible Reflectance

Thio derivatives of b-diketones and their metal chelates. IV. Adducts of nickel(II) chelates of Monothio-β-diketones with aromatic heterocyclicbases

1966 ◽  
Vol 19 (8) ◽  
pp. 1401 ◽  
Author(s):  
SHH Chaston ◽  
SE Livingstone ◽  
TN Lockyer
Keyword(s):  
Absorption Spectra ◽  
Reflectance Spectra ◽  
Spectral Measurements ◽  
Octahedral Structure ◽  
Visible Absorption ◽  
Diethyl Dithiocarbamate ◽  
Visible Reflectance ◽  
Derivatives Of ◽  
Diethyl Dithiophosphate ◽  
Spectrochemical Series

Paramagnetic adducts of nickel(II) chelates of monothio-β-diketones have been obtained with pyridine, γ-picoline, 1,l0-phenanthroline, 2-methyl-1,10-phenanthroline, 2,2'-bipyridyl, and 2,2',2"-terpyridyl. Their paramagnetism and visible reflectance spectra are consistent with octahedral nickel(II). The pyridine and γ-picoline adducts probably have a trans octahedral structure, while there are three possible octahedral configurations for the adducts of the phenanthrolines and bipyridyl. The terpyridyl adduct of Ni(NeCS=CHCOOMe)2 was obtained in two forms but the data obtained from infrared and visible absorption spectral measurements are insufficient to establish which of the several possible structures occur. The characteristic infrared bands of the adducts are given. The visible absorption spectra of the diamagnetic nickel(II) chelates of the monothio-β-diketones indicate that these ligands lie between diethyl dithiophosphate and diethyl dithiocarbamate in the spectrochemical series.

Vestoid surface composition from analysis of faint absorption bands in visible reflectance spectra

Icarus ◽  
2008 ◽  
Vol 195 (2) ◽  
pp. 649-662 ◽  
Author(s):  
D.I. Shestopalov ◽  
L.A. McFadden ◽  
L.F. Golubeva ◽  
V.M. Khomenko ◽  
L.O. Gasanova
Keyword(s):  
Surface Composition ◽  
Reflectance Spectra ◽  
Absorption Bands ◽  
Visible Reflectance

Alteration of the UV-visible reflectance spectra of H2O ice by ion bombardment

1991 ◽  
Vol 96 (E2) ◽  
pp. 17535 ◽  
Author(s):  
N. J. Sack ◽  
J. W. Boring ◽  
R. E. Johnson ◽  
R. A. Baragiola ◽  
M. Shi
Keyword(s):  
Ion Bombardment ◽  
Reflectance Spectra ◽  
Uv Visible ◽  
Visible Reflectance
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