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  • Title: Spectrophotometric determination of tellurium after adsorption of its morpholine-4-carbodithioate on microcrystalline naphthalene.
    Author: Sethi CL, Kumar A, Satake M, Puri BK.
    Journal: Talanta; 1984 Oct; 31(10 Pt 1):848-50. PubMed ID: 18963758.
    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.
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