Yj. Yuan et al., Effect of an intermediate on the amperometric response of a polypyrrole-based formate biosensing membrane, ELECTROCH C, 2(1), 2000, pp. 27-31
It was evidenced that an intermediate exists in the polypyrrole conjugation
system, resulting in a negative response. This fact is with respect to the
amperometric response, due to the changing background current that overlap
s with the response of the biosensing system. The solution to this problem
is to use an overoxidised polypyrrole film for stabilising the background.
(C) 2000 Elsevier Science S.A. All rights reserved.