||Sensitizing the 4-Aminoantipyrine Reaction with Phenolic Materials for use in Water and Waste Analysis.
Ettinge, M. B. ;
Ruchhof, C. C. ;
Lishk, R. J. ;
||Environmental Health Center, Cincinnati, Ohio.
( Water analysis ;
( Colorimetric analysis ;
( Spectroscopic analysis ;
Water pollution detection
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
The use of 4-aminoantipyrine was proposed by Emerson in a new color test for phenols. As outlined by Emerson, the essentials of the reaction consist of bringing together the phenolic material, the 4-aminoantipyrine and an alkaline oxidant in a solution of sufficiently high pH to prevent the formation of antipyrine red. Potassium ferricyanide was recommended as the oxidant. The work to be described has had two goals: Evaluation of the reaction variables which affect usage of Emerson's reagent for the determination of the simpler phenols; and Devising a procedure sufficiently sensitive to detect a one p.p.b. concentration of phenol.