Reduction of Cd[II], Co[II] and Pb[II] at the dropping mercury electrode in the presence of 4-[P-nitrophenyl Azo] Resorcinol in aqueous sodium perchlorate. 

 - [s.l.] :  [s.n.],  1992. 
<br/><br/><label>Standard No.: </label>OEFZS-4651