Extractions with long-chain amines—III Colorimetric determination of molybdenum as thioglycollate

Autor: Pribil R, Jiří Adam
Rok vydání: 1971
Předmět:
Zdroj: Talanta. 18:349-354
ISSN: 0039-9140
DOI: 10.1016/0039-9140(71)80049-8
Popis: A highly selective and sensitive colorimetric determination of molybdenum(VI) based on its extraction with a chloroform solution of trioctylamine from solutions of acetic and thioglycollic acid (TGA) is described. The yellow chloroform extract containing the molybdenum-TGA complex is measured at 370 nm. With a single extraction it is possible to determine small amounts of molybdenum in the presence of very large concentrations of almost all metals. Only bismuth, mercury and tungsten interfere.
Databáze: OpenAIRE