Spectrophotometric extractive determination of Ti in mineral samples and aluminium alloys as a mixed-ligand Ti(IV)-salicylhydroxamic acid-thiocyanate complex.

Autor: Capitán-Vallvey, Luis, Molina-Díaz, Antonio, Fernández de Córdova, María, Pascual-Reguera, Maria
Zdroj: Microchimica Acta; 1990, Vol. 100 Issue 5/6, p305-311, 7p
Abstrakt: A sensitive method for the determination of titanium, based on the formation of a mixed-ligand Ti (IV)-salicylhydroxamic acid-thiocyanate complex and extraction of this into a liquid ion-exchanger phase has been developed. The extract has maximum absorbance at 400-460 nm and the apparent molar absorptivity is 1.8 × 10l · mole · cm at 420 nm. The system obeys Beer's law at 420 nm in the range 0.16-3.20 mg/1 Ti, the detection limit being 0.1 mg/1. The method is found suitable for determination of titanium in aluminium alloys and silicate rocks. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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