title: Quantitative reflectometry-I Principles and scope.
abstract: The technique of quantitative reflectometry is critically investigated, the model being the quantitative determination of nickel in aqueous media. Direct reflectance measurements can be made on commercially available nickel test-strips which develop a pink or red colour in the presence of nickel ions. Relative precisions at the 10 and 50 ppm levels are 2.3-3.6%.
authors.affiliation: School of Chemical Science and Technology, Kingston Polytechnic, Kingston-upon-Thames, Surrey, U.K.
authors.forename: D
authors.initials: D
authors.lastname: Kealey