POLAROGRAPHIC-DETERMINATION OF DIETHYLDITHIOCARBAMATE USING KINETIC AND CATALYTIC PROCESSES

Diethyldithiocarbamate (Et(2)DTC) is not polarographically reducible, but in complex combination with cobalt two prewaves are formed in ammo nia buffer. These prewaves are due to catalytic cobalt and hydrogen di scharge and they are useful for analytical purposes in the determinati on of Et(2)DTC with high sensitivity (2 x 10(-6)-1 x 10(-4) M). The ef fects of Co-II, ammonium hydroxide, and ammonium chloride concentratio ns on the catalytic waves are described. A mechanism for the formation of the prewaves is proposed, in which adsorption plays a prominent pa rt. Suitable conditions for analytical applications are described.