Determination of the concentration of ozone in liquid phase

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  • 1. School of Chemical Engineering,Sichuan University,Chengdu 610065,China;
    2. Chengdu Municipal Environmental Protection Agency,Chengdu 610012,China

Received date: 2000-10-11

  Online published: 2010-10-01

Abstract

ractA modified analy sis method based on the determinat ion of ozone —indigo disulphonate spect rophotometer( GB/T 15437 -1995)in gas phase has been developed to detect the concent rat ion of ozone in liquid phase.An analy tical condition of λmax =612 ~ 615 nm, ε=20 000 L/(mol?cm), pH 2 is obtained by the tit ration of indigo disulphonate.Compared with potassium iodide method, it show s a higher precision and accuracy, CV <3.0 %。The result s also prove that blank experiment w ill bring about 5.0 % systematic error.

Cite this article

ZHANG Quan-zhong, WU Pan, LIANG Bin, WANG Rong-yan . Determination of the concentration of ozone in liquid phase[J]. Industrial Water Treatment, 2001 , 21(4) : 30 -32 . DOI: 10.11894/1005-829x.2001.21(4).30

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