title: Extraction and photometric determination of microamounts of Zn2+, Cd2+ and Hg2+ with 1-(2-quinolylazo)-2-acenaphthylenol.
abstract: 1-(2-Quinolylazo)-2-acenaphthylenol (QAAc) combines with Zn(II), Cd(II) and Hg(II), giving deep red 1:2 complexes which are extractable in CCl(4)and other organic solvents. Spectrophotometric methods based on the reactions are sensitive and fairly selective, the Sandell's sensitivities being 8.8 x 10(-4), 2.4 x 10(-3) and 3.3 x 10(-3) microg/cm(2) for Zn(II), Cd(II) and Hg(II) respectively.
authors.affiliation: Department of Chemistry, University of Delhi, Delhi 110007, India.
authors.forename: I
authors.initials: I
authors.lastname: Singh
authors.forename: Y L
authors.initials: YL
authors.lastname: Mehta
authors.forename: B S
authors.initials: BS
authors.lastname: Garg
authors.forename: R P
authors.initials: RP
authors.lastname: Singh