Interference of dissolved organic matter and its constituents on the accurate determination of hydrogen peroxide in water.

ABSTRACT: Hydrogen peroxide (H₂O₂) is ubiquitous in natural waters, and plays an important role in both biological and chemical processes. This study investigated the influence of dissolved organic matter (DOM) and its substituents on the accurate measurement of H₂O₂ by peroxidase-mediated depletion of scopoletin fluorescence method which is one of the most widely used methods for the determination of low concentration H₂O₂ in water. Six DOM and its 24 substituents interfered the determination of H₂O₂ at environmentally relevant concentration of 200 nM with different levels except 2,6-dimethoxy-1,4-benzoquinone and benzoic acid, which may be associated with origin and types of DOM, and numbers and position of act

SUBMITTER: Peng J 

PROVIDER: S-EPMC8604898 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature