Stepwise Injection Photometric Determination of Phenol in Air

Original Paper

Abstract

An automated method for the photometric determination of phenol in air has been developed. This method includes liquid-absorption isolation of phenol from a gas phase. The isolation proceeds directly in a reaction vessel by a hydraulic scheme of a stepwise injection analyzer with subsequent generation of an analytical form reacted with 4-aminoantipyrine. The determination concentration range is from 10 to 200 μg m^-3 at the sample volume of 4.8 L and time of concentration of phenol is 6 min. Time for analysis is 10 min.