A pulse polarographic method for the determination of primary and secondary amines and its application to the analysis of organic isocyanates

Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla-171 005, Himachal Pradesh, India

E-mail : dksharma_dk@rediffmail.com     Fax: 91-177-2633014

Department of Chemistry, Punjabi University, Patiala-147 002, Punjab, India

Manuscript received 8 June 2007, revised 30 July 2007, accepted 1 August 2007

The observations that carbon disulphide transforms primary and secondary amines in acetonitrile medium quantitatively into dithiocarbamates and following their reaction with copper(II) in the same medium, the latter can be successfully determined using pulse-polarography, have been made the basis of a simple, accurate and reliable method for the determination not only of primary and secondary amines but organic isocyanates as well.