title: Spectrophotometric determination of nickel with p-acetylarsenazo.
abstract: A spectrophotometric method for the determination of trace amounts of nickel is described. At pH 6, nickel reacts with p-acetylarsenazo to form a 1:2 coloured complex with an absorption maximum at 630 nm. The apparent molar absorptivity is 6.5 x 10(4) l.mol(-1) . cm(-1) . Beer's law is obeyed over the concentration range of 0-0.8 microg/ml. The proposed method is selective, sensitive and can be applied to the determination of nickel in aluminum alloy.
authors.affiliation: Department of Polymer Chemical Engineering, Shenyang Institute of Chemical Technology, Shenyang, China.
authors.forename: S L
authors.initials: SL
authors.lastname: Zhao
authors.forename: X Q
authors.initials: XQ
authors.lastname: Xia
authors.forename: H R
authors.initials: HR
authors.lastname: Ma
authors.forename: H J
authors.initials: HJ
authors.lastname: Xi