UV-Visible spectroscopy is utilized in an online fashion to directly measure concentration and speciation of special nuclear materials, such as uranium and plutonium, allowing real-time accountability and tracking for the solvent extraction processes. The implementation of UVVisible spectroscopy for ...
Characterization of copper oxidation by linear potential sweep voltammetry and UV-Visible-NIR diffuse reflectance spectroscopy The aim of this study was to characterize the compounds grown on copper during oxidation at low temperature ( T <573 K) in air by electrochemical and optic... M Lenglet,...
The Use of UV-Visible Reflectance Spectroscopy as an Objective Tool to Evaluate Pearl Quality Assessing the quality of pearls involves the use of various tools and methods, which are mainly visual and often quite subjective. Pearls are normally clas... AK Snezana,DW Morton - 《Marine Drugs》 ...
UV-visible spectroscopic study of the reaction kinetics of methylpiperazine-modified poly(vinyl chloride)s for use as fixed-state proton carrier membranespoly(vinyl chloridereactionUV-VIS-spectroscopyAminated poly(vinyl chloride)s (AmPVCs) were synthesized for use as fixed-site proton carrier membranes...
The chemical content of dry, ground leaf material sampled from deciduous and conifer tree species from sites in Alaska, Wisconsin, and California was estimated using visible and shortwave infrared spectroscopy. Seven chemical components—sugar, starch, protein, cellulose, total chlorophyll, lignin, and...
Infrared spectroscopy in combination with a specially developed attenuated total reflection (ATR) flow cell and multivariate analysis was used for the quantitative analysis of beer and other beverages. IR spectra of samples were obtained in the range from below 1000 cm-1to 4000 cm-1and subjected ...
The composition of fluorescence DOM from soils under different land-uses was analyzed using EEM-PARAFAC and found to affect atrazine binding (Zhu et al., 2018). Gao et al. (2017) characterized DOM from different agricultural soils using UV–visible absorbance and EEM-PARAFAC spectroscopy and did...
The degradation efficiency of the MB dye was monitored by UV-visible spectrometry (λ = 665 nm), and the dye concentration was calculated using an analytical curve. Prior to degradation, the reaction mixture was stirred until adsorption equilibrium was reached (no significant adsorption ...
Reactions between PVC and methylpiperazine (MePIP) in dimethylformamide (DMF) were studied using UV-VIS spectroscopy over time, temperature, and in the presence of the catalyst, potassium fluoride (KF). Based on the spectra of AmPVCs in THF, the peak attributions were assigned and the ...
Application of multi-way analysis to UV-visible spectroscopy, gas chromatography and electronic nose data for wine ageing evaluation. In this study, a multi-way method (Tucker3) was applied to evaluate the performance of an electronic nose for following the ageing of red wines. The odour ......