The present paper deals with some theoretical problems of an inhibitor urea biosensor with immobilized urease and base ion-selective electrode for fluoride ions. The kinetics under homogeneous conditions is ana(vzed and the basic differential equations describing the behaviour of the inhibitor .~vstem are presented. A.flerwarcl.s the theoretical background and the behaviour of a biosensor with active a.~:vmmetric membrane under steat{y-state mode are anavzed. Ana(vtical expressions of the biosensor tran.~fer jimction for 5 dijjerent cases are obtained, including the case when no limitations of the inhibitor and substrate concentrations are necessm:v.

ABSTRACT

ABSTRACT

Dynamic behaviour of urea biosensor at quasi-stationary enzyme kinetics is investigated in this article. Mathematical dependencies and digital simulation of non-linear enzyme system at weak inhibition are presented. Forming of uniform scales is proved to be possible for dynamic information parameters.