A Detection Tube for the Determination of Sulfur Dioxide in Air
aOritest Ltd., Prague, bDepartment of Chemistry, Military College of Ground Forces, Vyskov
A method of the determination of sulfur dioxide in air with a detection tube is described. The tube contains a chromogenic reagent, 2,2'-dinitro-5,5'-disulfanediyldibenzoic acid, dimethyl sulfoxide, ammonium acetate and glycerol. The method is sensitive (detection limit 1 mg.m 3) and enables colorimetric determination based on the length of the coloured indication zone.
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