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一种Cu-Fe双金属水凝的过氧化酶活性和用于色度检测 Askorbic 酸的应用

Xiao-Juan Wang1, Yan Long1, Chuan-Wan Wei1

  • 1School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China. weichw@hotmail.com.

Physical chemistry chemical physics : PCCP
|December 15, 2023
PubMed
概括

一种新的Cu-Fe双金属凝显示出高的过氧化酶类活性. 这使得在水果中敏感的色度检测能够检测出酸 (AA).

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Effects of EDTA on End-Point Detection Methods01:18

Effects of EDTA on End-Point Detection Methods

Different methods, such as visual observance of metal-ion indicators, spectroscopic techniques, and potentiometric methods, can determine the endpoint of an EDTA titration.
In the visual method, metal-ion indicators (metallochromic dyes), which have distinct colors in their free and complex forms, are added to the mixture to signal the titration's end point. They form stable complexes with metal ions, but these complexes are weaker than the corresponding metal–EDTA complexes. As a...
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