Analytical expressions pertaining to the concentration of catechol, o-quinone and current at PPO-modified microcylinder biosensor for diffusion-kinetic model

►The solutions for sensor response range and current which yet to be reported. ►Established the efficiency of the VIM for handling non-linear structures. ►Our results are in excellent agreement with the previous results. ►A validation of the procedure shows good results in the PPO-model.