Collect. Czech. Chem. Commun.
1985, 50, 2853-2862
https://doi.org/10.1135/cccc19852853
Determination of 4-nitrobiphenyl and 4-aminobiphenyl by controlled-potential coulometry, differential pulse polarography and differential pulse voltammetry
Jiří Barek, Antonín Berka, Marion Müller and Jiří Zima
Department of Analytical Chemistry, Charles University, 128 40 Prague 2
Abstract
Conditions were sought for the determination of 4-nitrobiphenyl by controlled-potential coulometry based on its reduction on a mercury pool electrode and for its polarographic determination on a dropping mercury electrode, with detection limits of 0.7 μmol l-1 for TAST polarography and 0.06 μmol l-1 for DP polarography. The reduction of this compound on a glassy carbon electrode was employed for its determination with detection limits of 10 μmol l-1 for DC voltammetry on a rotating electrode and 1 μmol l-1 for DP voltammetry on a stationary electrode. For 4-aminobiphenyl, its oxidation on a glassy carbon electrode was employed for the determination; the detection limits were 10 μmol l-1 for DC voltammetry on a rotating electrode and 0.5 μmol l-1 for DP voltammetry on a stationary electrode.
