Accession Number : AD0451917


Title :   SPECTROPHOTOMETRIC DETERMINATION OF CATECHOLS WITH 4-AMINOANTIPYRINE,


Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA SASKATOON (SASKATCHEWAN) PRAIRIE REGIONAL LAB


Personal Author(s) : Larue,T A ; Blakley,E R


Report Date : 07 Jan 1964


Pagination or Media Count : 3


Abstract : Phenols, oxidized with hydrogen peroxide or potassium ferricyanide in alkaline medium, give a color reaction with 4-aminopyrazoles. This reaction with 4-aminoantipyrine (Emerson's reagent) is the basis of a sensitive and specific analytical method for phenols. We have observed that when atmospheric oxygen acts as the oxidant, only catechols respond to the test. This permits the determination of catechols in the presence of other phenols. (ARUTHOR)


Descriptors :   *PHENOLS , CHEMICAL ANALYSIS , VISIBLE SPECTRA , ULTRAVIOLET SPECTRA , AMINES , OXYGEN HETEROCYCLIC COMPOUNDS , NITROGEN HETEROCYCLIC COMPOUNDS , CANADA , INTERFERENCE , OXIDATION , CHROMATOGRAPHY


Distribution Statement : APPROVED FOR PUBLIC RELEASE