Small volume in vitro analyte sensor with diffusible or non-leachable redox mediator

Describes or the dispersion redox medium sensor for use of such a filter. The of the sample an comprising a a step for preparing contact sample chamber, and at least one of a certain circumstances, wherein the further comprises or the second diffusion with electron transport agent is a filter. The method according to and/or for producing the signal in accordance to the analyte, which is capable of the background signal discrimination of the medium is. The invention can be used for according to coulomb the analytic, the current analytic method and electric potential analytic technical method of biological liquid to the blood or serum and initiator to the concentration of the glucose or polylactic acid. The catalytic and molecule electrooxidation or an enzyme and wherein the second with electron transport agent generally.