Determination of Trace Amounts of Gold(III) using Ethopropazine Hydrochloride and Isothipendyl Hydrochloride: A Spectrophotometric Study

Authors : Mahaveer B. MELWANKI, Saraswati P. MASTI, Jaldappa SEETHARAMAPPA

Pages : 17-22

View : 11 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Two simple, sensitive and accurate spectrophotometric methods have been proposed for the determination of micro amounts of gold insert ignore into journalissuearticles values(III); using ethopropazine hydrochloride insert ignore into journalissuearticles values(EPH); and isothipendyl hydrochloride insert ignore into journalissuearticles values(IPH);. The methods are based on the oxidation of phenothiazines by gold insert ignore into journalissuearticles values(III); to give red radical cations having maximum absorption at 513 and at 512 nm with molar absorptivities of 2.0 X 104 and 2.1 X 104 l mol - 1 cm - 1 for EPH and IPH respectively. Beer`s law is valid over the concentration range 0.5-14.1 mg l - 1 for EPH and 0.5-14.5 mg l - 1 for IPH. The proposed methods have been successfully applied for the determination of gold insert ignore into journalissuearticles values(III); in synthetic mixtures.
Keywords : Turk J Chem, 26, 2002, , 17 22 Turk J Chem, vol 26, iss 1