Results 11 to 20 of about 664,376 (346)

Combined In Situ Illumination-NMR-UV/Vis Spectroscopy: A New Mechanistic Tool in Photochemistry. [PDF]

open access: yesAngew Chem Int Ed Engl, 2018
Synthetic applications in photochemistry are booming. Despite great progress in the development of new reactions, mechanistic investigations are still challenging.
Seegerer A, Nitschke P, Gschwind RM.
europepmc   +4 more sources

UV-Vis Spectroscopy: A New Approach for Assessing the Color Index of Transformer Insulating Oil. [PDF]

open access: yesSensors (Basel), 2018
Monitoring the condition of transformer oil is considered to be one of the preventive maintenance measures and it is very critical in ensuring the safety as well as optimal performance of the equipment.
Leong YS   +7 more
europepmc   +2 more sources

Geographical origin identification of teas using UV-VIS spectroscopy [PDF]

open access: yesE3S Web of Conferences, 2021
In this work we proposed a method to verify the differentiating characteristics of simple tea infusions prepared in boiling water alone, which represents the final product as ingested by the consumers.
Tran Thi Hue   +3 more
doaj   +1 more source

Chemometrics-Assisted UV-Vis Spectrophotometry for Quality Control of Pharmaceuticals: A Review

open access: yesIndonesian Journal of Chemistry, 2023
Spectroscopic method in the UV-Vis region is considered the most molecular spectrometric method for content determination of a single component. However, a lot of pharmaceutical dosage forms comprise two or more components which lead to peak overlapping.
Laela Hayu Nurani   +6 more
doaj   +1 more source

Operando UV/vis Spectroscopy Providing Insights into the Sulfur and Polysulfide Dissolution in Magnesium–Sulfur Batteries

open access: yesACS Energy Letters, 2021
: The magnesium − sulfur battery represents a promising post-lithium system with potentially high energy density and improved safety. However, just as all metal − sulfur systems, it is plagued with the polysul fi de shuttle leading to active material loss
Joachim H ä cker   +6 more
semanticscholar   +1 more source

Investigation and Discrimination of Ballpoint Pen Inks by Analytical Techniques and Chemometrics

open access: yesInternational Journal of Analytical Chemistry, 2022
A population study has been performed for Pakistani ballpoint pen inks of blue, black, red, and green colors (a total of four colors) commercially used in Pakistan.
Mehwish Sharif   +5 more
doaj   +1 more source

Ultraviolet – visible - near infrared spectroscopy for rapid determination of volatile compounds in white grapes during ripening [PDF]

open access: yesCiência e Técnica Vitivinícola, 2017
Near Infrared (NIR) spectroscopy is increasingly used in food analysis due to its speed and ease of use. Ultraviolet-visible (UV-VIS) spectroscopy is commonly used in any laboratory worldwide.
Ripoll Gabriel   +2 more
doaj   +1 more source

Thermodynamic characterisation of triazol ylimino-DNA interaction by UV–Vis spectroscopy

open access: yesJournal of Photochemistry and Photobiology, 2020
To efficiently design improved therapeutic agent, study of molecule-DNA interaction is a crucial step. In our previous study, we investigated comprehensive mechanism of some 1,2,4 triazol-4-ylimino derivatives, and they exhibited excellent in vitro anti ...
Rafia Nimal, Afzal Shah, Muhammad Saddiq
doaj   +1 more source

Physical Properties of Cu Doped ZnO Nanocrystiline Thin Films

open access: yesمجلة بغداد للعلوم, 2022
Thin films of ZnO nano crystalline doped with different concentrations (0, 6, 9, 12, and 18 )wt. % of copper were deposited on a glass substrate via pulsed laser deposition method (PLD).
Nada K. Abbas   +2 more
doaj   +1 more source

New spirit of an old technique: Characterization of lipid phase transitions via UV/Vis spectroscopy.

open access: yesSpectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy, 2022
One of the advantages of investigating lipid phase transitions by thermoanalytical techniques such as DSC is manifested in the proportionality of the signal strength on a DSC curve, attributed to a particular thermotropic event, and its cooperativity ...
Petra Maleš   +3 more
semanticscholar   +1 more source

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