Results 51 to 60 of about 176,371 (204)
Total internal reflection Raman spectroscopy [PDF]
The Analyst, 2012 Total internal reflection (TIR) Raman spectroscopy is an experimentally straightforward, surface-sensitive technique for obtaining chemically specific spectroscopic information from a region within approximately 100-200 nm of a surface. While TIR Raman spectroscopy has long been overshadowed by surface-enhanced Raman scattering, with modern ...
Woods, David A., Bain, Colin D.
openaire +3 more sources
Rapid, Specific Determination of Iodine and Iodide by Combined Solid-Phase Extraction/Diffuse Reflectance Spectroscopy [PDF]
, 2002 A new, rapid methodology for trace analysis using solid-phase extraction is described. The two-step methodology is based on the concentration of an analyte onto a membrane disk and on the determination by diffuse reflectance spectroscopy of the amount of
Arena, Matteo +2 more
core +1 more source
Online measurement of soil organic carbon as correlated with wheat normalised difference vegetation index in a vertisol field [PDF]
, 2014 This study explores the potential of visible and near infrared (vis-NIR) spectroscopy for onlinemeasurement of soil organic carbon (SOC). It also attempts to explore correlations and similarities between the spatial distribution of SOC and normalized ...
Mouazen, Abdul Mounem +3 more
core +4 more sources
Multivariate NIR studies of seed-water interaction in Scots Pine Seeds (Pinus sylvestris L.) [PDF]
, 2003 This thesis describes seed-water interaction using near infrared (NIR) spectroscopy, multivariate regression models and Scots pine seeds. The presented research covers classification of seed viability, prediction of seed moisture content, selection of ...
Lestander, Torbjörn
core
, 2008 Optical spectroscopy on single crystals of the new iron arsenide superconductor Ba{0.55}K{0.45}Fe2As2 shows that the infrared spectrum consists of two major components: a strong metallic Drude band and a well separated mid infrared absorption centered at
A. V. Chubukov +9 more
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Prediction of naturally-occurring, industrially-induced and total trans fatty acids in butter, dairy spreads and Cheddar cheese using vibrational spectroscopy and multivariate data analysis [PDF]
, 2015 peer-reviewedThis study investigated the use of vibrational spectroscopy [near infrared (NIR), Fourier-transform mid-infrared (FT-MIR), Raman] and multivariate data analysis for (1) quantifying total trans fatty acids (TT), and (2) separately predicting ...
Beattie, Renwick J. +4 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingSurface reflectance is an important data product in imaging spectroscopy for obtaining surface information. The complex retrieval of surface reflectance, however, critically relies on accurate knowledge of atmospheric absorption and scattering, and the ...
Marius Vogtli +5 more
doaj +1 more source
Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron
Química Nova, 2011 SiO2-TiO2 materials prepared by sol-gel method were evaluated in the photocatalytic degradation of diuron. The materials were prepared with and without surfactant cetyltrimethylammonium chloride at different temperatures (25, 50 and 100 ºC).
Arthur Alaím Bernardes +5 more
doaj +1 more source
Optical Absorption and Scattering Phenomena in 'Jubileum' Plums in Relation to Their Colour Properties [PDF]
, 2010 Absorption and scattering of laser light pulse passing through the fruit determine among others, the optical properties of the product. Efforts have been made in the recent past to utilize innovative techniques such as time-resolved reflectance ...
Eccher Zerbini, P.C. +7 more
core +2 more sources
Plant Methods, 2019 Background Reflectance spectroscopy, like IR, VIS–NIR, combined with chemometric, has been widely used in plant leaf chemical analysis. But less studies have been made on the application of NIR reflectance spectroscopy to plant leaf color and pigments ...
Yanjie Li +3 more
doaj +1 more source