Benzylpenicillin PVC membrane electrode for the determination of antibiotics in formulations.
A PVC (polyvinychloride) ion selective electrode, employing benzyldimethyl-cetylammoniumbenzylpenicillin as sensor, was prepared, characterized and applied to the analysis of commercially available formulations containing benzylpenicillin and other antibiotics of the penicillin or cephalosporin group. The results are compared with those obtained by using the corresponding liquid membrane electrode.
Campanella
L
L
Department of Chemistry, University La Sapienza, Rome, Italy.
Mazzei
F
F
Sbrilli
R
R
Tomassetti
M
M