title: Spectrophotometric determination of tellurium after adsorption of its morpholine-4-carbodithioate on microcrystalline naphthalene.
abstract: A rapid spectrophotometric method has been developed for microdetermination of Te(IV) after co-precipitation of its morpholine-4-carbodithioate complex on microcrystalline naphthalene and subsequent dissolution in chloroform. The molar absorptivity at 415 nm is 9.18 x 10(3) l.mole(-1).cm(-1). Beer's law is obeyed over the range 5-75 mug of Te(IV); 25.0 mug of Te(IV) in 10.0 ml of final solution gives a mean absorbance of 0.180 with a relative standard deviation of 0.55%. The method has been tested for determination of tellurium in some alloys and synthetic mixtures.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, New Delhi 110016, India.
authors.forename: C L
authors.initials: CL
authors.lastname: Sethi
authors.forename: A
authors.initials: A
authors.lastname: Kumar
authors.forename: M
authors.initials: M
authors.lastname: Satake
authors.forename: B K
authors.initials: BK
authors.lastname: Puri