title: Indirect polarographic determination of tripolyphosphate ions in the presence of other polyphosphates, with octyltin chloride.
abstract: Tripolyphosphate ions form a soluble complex with mono-octyltin cations, thus reducing the polarographic wave height ofthe octyltin. This provides a method for the determination of 2 x 10(-4)-4 x 10(-3)M tripolyphosphate in the presence of 2 x 10(-3)M ortho-, pyro-, trimeta-, and 10(-3)M tetrametaphosphate, together, or in any combination. The method is also insensitive to less than 2 x 10(-3)M magnesium or calcium and less than 10(-2)M sulphate.
authors.affiliation: Chemistry Department Birmingham University P.O. Box 363, Birmingham 15, U.K.
authors.forename: S
authors.initials: S
authors.lastname: Shaw
authors.forename: A
authors.initials: A
authors.lastname: Townshend