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RECORD NUMBER: 333 OF 1202

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Main Title

Effects of Aquatic Humic Substances on Analysis for Hydrogen Peroxide Using Peroxidase-Catalyzed Oxidations of Triarylmethanes or p-Hydroxypenylacetic Acid (Journal Version).

Author

Zepp, R. G. ; Skurlatov, Y. I. ; Ritmiller, L. F. ;

CORP Author

Environmental Research Lab., Athens, GA. ;Akademiya Nauk SSSR, Moscow.

Publisher

c1988

Year Published

1988

Report Number

EPA/600/J-88/139;

Stock Number

PB89-119317

Additional Subjects

Water analysis ; Surface waters ; Humus ; Hydrogen peroxide ; Trace elements ; Oxidation ; Methanes ; Catalysts ; Performance evaluation ; Chemical analysis ; Water pollution ; Reprints ; Water pollution detection ; Acetic acid/hydroxyphenyl

Holdings

Library	Call Number	Additional Info	Location	Last Modified	Checkout Status
NTIS	PB89-119317	Some EPA libraries have a fiche copy filed under the call number shown.		07/26/2022

Collation

13p

Abstract

A sensitive procedure is described for trace analysis of hydrogen peroxide in water. The process involves the peroxide-catalyzed oxidation of the leuco forms of two dyes, crystal violet and malachite green. The sensitivity of this procedure, as well as of another procedure based on the peroxidase-catalyzed oxidation of p-hydroxyphenylacetic acid (POHPA), is decreased in natural water samples and in aqueous solutions of aquatic humic substances. This decrease, which is less pronounced with the POHPA method, may be caused by competitive reactions of peroxidase intermediates with phenolic components of the humic substances. (Copyright (c) Publications Division Selper Ltd., 1988.)

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