UV-Vis Spectrophotometric Determination of Selected Heavy Metals (Pb, Cr, Cd and As) in Environmental, Water and Biological Samples with Synthesized Glutaraldehyde Phenyl Hydrazone as the Chromogenic Reagent

JOURNAL ARTICLE published 13 July 2021 in European Journal of Advanced Chemistry Research

Authors: Samuel Echioda | Adepeju Oluwabunmi Ogunieye | Salisu Salisu | Amina Abdulazeez Abdulrasheed | I. Y. Chindo | A. M. Kolo