Authors: Ali A Ensafi, M Keyvanfard

Publication date: 2002/2/13

Journal name: Analytical letters

Volume: 35

Pages: 423-433

Publisher: Taylor & Francis Group

ABSTRACT A new simple and sensitive spectrophotometric method is reported for the
determination of palladium (II), based on its catalytic effect on the oxidation of pyrogallol red
by periodate in a micellar medium. The decrease in absorbance of pyrogallol red was
monitored at 540 nm, and pH 10.1. The various variables affect on sensitivity were studied
and optimized and a study of interfering ions was also carried out. The calibration graph was
linear in the range of 0.020–1.00 µg/ml Pd (II). The detection limit was 0.018 µg/ml Pd (II). ...