Standard Test Method for Determination of Hydrogen Peroxide and Combined Organic Peroxides in Atmospheric Water Samples by Peroxidase Enzyme Fluorescence Method

Importancia y uso:

5.1 Hydrogen peroxide (formed photochemically in the atmosphere) is a primary oxidizer of dissolved sulfur dioxide in atmospheric water. Detection of H₂O₂ in atmospheric water is useful for inferring gas-phase H₂O₂ concentrations and for assessing the relative importance of various acidifying mechanisms under specific atmospheric conditions.

5.2 Hydroperoxides in samples to be analyzed are unstable in water and can decay rapidly due to bacterial action or chemical reaction with other constituents. The test method includes procedures for sample derivatization and methods for estimating and correcting for hydroperoxide decay.

Subcomité:

D22.03.02

Volúmen:

11.07

Número ICS:

13.060.50 (Examination of water for chemical substances)

Palabras clave:

atmospheric water; derivatization; hydrogen peroxide; hydroperoxide; peroxide; sampling;