Results 31 to 40 of about 1,624,767 (350)

UV/Vis/NIR Spectroelectrochemistry

open access: yes, 2005
Voltammetric techniques used in electrochemistry monitor the flow of current as a function of potential, time, and mass transport. A huge variety of different experiments are possible, giving information about reaction energies, reaction intermediates, and the kinetics of a process [1–4].
Neudeck, A, Marken, F, Compton, R
openaire   +1 more source

Determination of Hexavalent Chromium (Cr(VI)) Concentrations via Ion Chromatography and UV-Vis Spectrophotometry in Samples Collected from Nacogdoches Wastewater Treatment Plant, East Texas (USA) [PDF]

open access: yes, 2016
The concentration of hexavalent chromium (Cr(VI)), a toxic environmental pollutant and carcinogen, was determined in samples collected from Nacogdoches Wastewater Treatment Plant (NWWTP) using ion chromatography and UV-visible spectrophotometry (IC, UV ...
Onchoke, Kefa Karimu, Sasu, Salomey A
core   +3 more sources

Anthocyanin Profiling Using UV-Vis Spectroscopy and Liquid Chromatography Mass Spectrometry.

open access: yesJournal of AOAC International, 2019
Background: As a powerful antioxidant and natural colorant, anthocyanins are being used increasingly as a component of food supplements and nutraceutical products. Hence, its characterization is a prerequisite for further exploration of its nutraceutical
S. Saha   +5 more
semanticscholar   +1 more source

Classification of red wines from controlled designation of origin by ultraviolet-visible and near-infrared spectral analysis [PDF]

open access: yesCiência e Técnica Vitivinícola, 2014
Spectroscopy has become one of the most attractive and commonly used methods of analysis in many agricultural products. Chemometrics combined with ultraviolet (UV), visible (VIS) and near-infrared (NIR) spectral analysis were evaluated to classify wines ...
Martelo-Vidal María J., Vázquez Manuel
doaj   +1 more source

Forensic examination of different textile fibres using UV- Vis spectroscopy [PDF]

open access: yesE3S Web of Conferences
Objective: The purpose of this study is to forensically examine different textile fibres using UV/visible spectroscopy. Methodology: Five different fibre types of ten different local brands have been analyzed using uv-vis spectroscopy.Each fibre was ...
Aditi, Sharma Spriha
doaj   +1 more source

Novel Technologies for Preserving Ricotta Cheese: Effects of Ultraviolet and Near-Ultraviolet–Visible Light

open access: yesFoods, 2020
Ricotta cheese is a potential growth medium for a wide range of microorganisms. The aim of the current study was to investigate the efficacy of ultraviolet (UV-C) and near-ultraviolet–visible light (NUV–vis) in microbial decontamination of ricotta ...
Emilio Francesco Ricciardi   +5 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

The MPI-Mainz UV/VIS Spectral Atlas of Gaseous Molecules of Atmospheric Interest [PDF]

open access: yesEarth System Science Data, 2013
We present the MPI-Mainz UV/VIS Spectral Atlas of Gaseous Molecules, which is a large collection of absorption cross sections and quantum yields in the ultraviolet and visible (UV/VIS) wavelength region for gaseous molecules and radicals primarily ...
H. Keller-Rudek   +3 more
doaj   +1 more source

Synergistic Photocatalytic Reduction of Hexavalent Chromium Using Graphene Quantum Dots and Formic Acid Optimization and Kinetics

open access: yesScience, Engineering and Technology, 2023
Graphene Quantum Dots (GQDs) has garnered a significant deal of interest in environmental remediation, particularly for reducing hexavalent chromium [Cr (VI)] to trivalent chromium [Cr (III)].
Silmina Silmina   +7 more
doaj   +1 more source

Concentration dependent aerosol substrates: UV-vis attenuation measurement [PDF]

open access: yes, 2016
Ultraviolet and visible (UV/vis) light were used to determine the composition of aerosol samples taken from several military bases located in the Middle East.
Iceman, Christopher   +2 more
core   +2 more sources

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