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Effect-Directed Analysis (EDA): A Promising Tool for Nontarget Identification of Unknown Disinfection Byproducts in

Huiyu Dong1,2, Amy A Cuthbertson1,3, Susan D Richardson1

  • 1Department of Chemistry and Biochemistry , University of South Carolina , Columbia , South Carolina 29208 , United States.

Environmental Science & Technology
|January 18, 2020
PubMed
Abstract

No abstract available in PubMed .

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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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