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Ultraviolet-Visible (UV-VIS) Spectroscopy
2019UV-VIS spectroscopy is considered as the most important spectrophotometric technique that is most widely used for the analysis of variety of compounds. This technique works on the basis of the measurement of interaction of electromagnetic radiations (EMR) with matter at particular wavelength.
Muhammad Sajid Hamid Akash +1 more
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Characterisation of red mud by UV–vis–NIR spectroscopy
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2009The characterisation of red mud has been studied by diffuse reflectance spectroscopy in the UV-vis-NIR region (DRS). For the first time the ferric ion responsible for the bands has been identified from electronic spectroscopy. It contains valuable amounts of oxidised iron (Fe(3+)) and aluminium hydroxide.
Palmer, Sara +2 more
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Size Evaluation of Gold Nanoparticles by UV−vis Spectroscopy
The Journal of Physical Chemistry C, 2009We present a method for the evaluation of the average size of gold nanoparticles based on the fitting of their UV-vis spectra by the Mie model for spheres. The method gives good results using a calibration of the dumping frequency of the surface plasmon resonance and accounting for the presence of nonspherical AuNP in solution by the Gans model for ...
AMENDOLA, VINCENZO, MENEGHETTI, MORENO
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Synthesis, UV-VIS Spectroscopy and Conductivity of Silver Nanowires
2014In this work, we report on the synthesis of silver nanowires (AgNW) by a modified polyole process. Conductive thin films were prepared from synthesized nanowires; then their basic properties were characterized. The influence of the raw materials, solvents, washing and centrifugal separation of these synthesized AgNWs was studied.
Kostova, Irena +3 more
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Recent Developments in UV-VIS Spectroscopy
1992In recent years we have seen the development of many new techniques such as: Dual-wavelength spectroscopy, derivative spectroscopy, reflection spectroscopy, photoacoustic spectroscopy, luminescence-excitation spectroscopy, variable wavelength detectors for chromatography and enzyme kinetics all of which quickly ...
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The rapid identification of organic colorants by UV/vis spectroscopy
Analytical and Bioanalytical Chemistry, 2002A rapid UV/vis spectroscopic method for the identification of organic colorants by the use of Gaussian analysis is presented. Sets of parameters are obtained for the screening with a low number of data. An optical distance using line positions and intensities is defined as a measure for the similarity of UV/vis spectra.
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UV-VIS-NIR spectroscopy and microscopy of heterogeneous catalysts
Chemical Society Reviews, 2010This critical review article discusses the characterization of heterogeneous catalysts by UV-VIS-NIR spectroscopy and microscopy with special emphasis on transition metal ion containing catalysts. A review is given of the transitions, that can be observed in the UV-VIS-NIR region and the peculiarities of catalytic solids that have to be taken into ...
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Analytical Applications of UV-VIS Spectroscopy
1992For about 130 years, the Bouguer-Lambert-Beer law has been used as the quantitative basis of absorption spectroscopy. Bouguer established empirically a correlation between pathlength and light absorption in 1729. This correlation was then formulated mathematically by Lambert in 1760 [1] and Beer discovered the dependence upon the concentration in 1852 [
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