||Differential Pulse Polarography of Phenylarsine Oxide.
Lowry, J. H. ;
Smart, R. B. ;
Mancy, K. H. ;
||Michigan Univ., Ann Arbor.;Environmental Monitoring and Support Lab.-Cincinnati, OH.
Chemical analysis ;
Performance evaluation ;
Oxygen organic compounds ;
Differential pulse polarography ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Differential pulse polarography was applied to analyze for phenylarsine oxide (PAO) in aqueous solutions at different pH values. Optimization of the instrumental artifacts resulted in a detection limit of 10 to the -8th power M PAO at pH 7.3, a relative standard deviation of 1.7%, and a maximum sensitivity of 450 microampere/mM PAO. The polarographic reduction of phenylarsine oxide was found to be pH dependent. Cyclic voltammetry and coulometry were used to characterize the electrode process.