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Issue 5, 1984
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Selective spectrophotometric determination of nickel in hydrogenated greases, steels and solders by solvent extraction with 3-(4-methoxyphenyl)-2-mercaptopropenoic acid

Alvaro Izquierdo  and  José Carrasco 

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.

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Article type: Paper
DOI: 10.1039/AN9840900605
Citation: Analyst, 1984,109, 605-609
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    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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