Refractive index-assisted UV/Vis spectrophotometry to overcome spectral interference by impurities.
Sign Up to like & getrecommendations! Published in 2021 at "Analytica chimica acta"
DOI: 10.1016/j.aca.2020.12.061
Abstract: A major challenge hindering the application of techniques like UV/Vis spectrophotometry in determining concentration is spectral interference from contaminants. Since molar absorptivities vary significantly, even minuscule amounts of specific contaminants may cause relatively large errors… read more here.
Keywords: vis spectrophotometry; spectral interference; spectrophotometry; index assisted ... See more keywords
Selective extraction and enrichment of 5-hydroymethylfurfural from honey, molasses, jam and vinegar samples prior to sensitive determination by micro-volume UV-vis spectrophotometry
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Food Composition and Analysis"
DOI: 10.1016/j.jfca.2020.103664
Abstract: Abstract In this study, a new method was developed for the extraction/enrichment of 5-hydroxymethylfurfural (5-HMF) from sample matrix prior to analysis. The method is based on the selective formation of the imine adduct and ion-pair… read more here.
Keywords: extraction; vis spectrophotometry; extraction enrichment; method ... See more keywords
Evaluation of the effect of organic pollutants exposure on the antioxidant activity, total phenolic and total flavonoid content of lettuce (Lactuca sativa L.) using UV–Vis spectrophotometry and chemometrics
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DOI: 10.1016/j.microc.2021.106632
Abstract: Abstract In the present contribution, the effects of different contaminants of emerging concerns (CECs), including parabens, drugs, and polycyclic aromatic hydrocarbons (PAHs) on antioxidant activity of Lactuca sativa L. in different concentration levels (10–500 µg L−1)… read more here.
Keywords: antioxidant activity; content; activity; activity total ... See more keywords
Chemometrics-Assisted UV-Vis Spectrophotometry for Quality Control of Pharmaceuticals: A Review
Sign Up to like & getrecommendations! Published in 2023 at "Indonesian Journal of Chemistry"
DOI: 10.22146/ijc.74329
Abstract: 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… read more here.
Keywords: vis spectrophotometry; spectroscopy; spectrophotometry quality; assisted vis ... See more keywords