Issue 5, 1984

Selective spectrophotometric determination of nickel in hydrogenated greases, steels and solders by solvent extraction with 3-(4-methoxyphenyl)-2-mercaptopropenoic acid

Abstract

The synthesis, characteristics and analytical applications of 3-(4-methoxyphenyl)-2-mercaptopropenoic acid (4MF2MP) are described. A highly sensitive, selective and rapid spectrophotometric method is described for the determination of trace amounts of nickel by 3-(4-methoxyphenyl)-2-mercaptopropenoic acid. This compound reacts instantaneously with Ni(II) in alkaline media to produce a yellow complex (1:2) soluble in water (λmax.= 400 nm, ε= 1.95 × 104 l mol–1 cm–1) that can be extracted quantitatively with isoamyl alcohol (λmax.= 410 nm, ε= 9.5 × 103 l mol–1 cm–1) and octanol (λmax.= 415 nm, ε= 1.9 × 104 l mol–1 cm–1). This method has been applied to the determination of nickel in hydrogenated greases, steels and solders. The results are compared with those obtained using dimethyl glyoxime.

Article information

Article type
Paper

Analyst, 1984,109, 605-609

Selective spectrophotometric determination of nickel in hydrogenated greases, steels and solders by solvent extraction with 3-(4-methoxyphenyl)-2-mercaptopropenoic acid

A. Izquierdo and J. Carrasco, Analyst, 1984, 109, 605 DOI: 10.1039/AN9840900605

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