Determination of Ultra-Trace Amounts of Cobalt by Adsorptive Differential Pulse Voltammetry Using ACDA (2-Aminocyclopentene-1-Dithiocarboxylic Acid)

Authors: Ali A Ensafi, H Rahimi Mansour, K Zarei, MB Gholivand

Publication date: 2000

Journal name: JOURNAL OF SCIENCES ISLAMIC REPUBLIC OF IRAN

Volume: 11

Pages: 93-98

Publisher: SCIENCES ISLAMIC REPUBLIC OF IRAN

Abstract The present work describes a selective, rapid and sensitive method for the
determination of cobalt using the adsorptive differential pulse voltammetry technique. The
method is based on the accumulation of Co (II) complex with 2-aminocyclopentene-1-
dithiocarboxylic acid on a hanging mercury drop electrode, followed by measurement of the
current of the adsorbed complex. The effects of experimental parameters on the peak current
were investigated. The current was linear from 0.010 to 0.150 μg/ml of Co (II), with ...