Extraction and spectrophotometric determination of thallium(III) with thiothenoyltrifluoroacetone.
A procedure is described for the extractive photometric determination of thallium(III) with thiothenoyltrifluoroacetone in carbon tetrachloride. Thallium(III) is extracted quantitatively at pH 4-5 and the bright yellow extract obeys Beer's law over the Tl(III) concentration range 2.5-17.5 mug/ml, at 440 nm. Thallium(III) can be determined in the presence of a large number of cations and anions.
Patil
P S
PS
Department of Chemistry, Shivaji University, Kolhapur 416004, India.
Shinde
V M
VM