System and method for analyte measurement using samples nonlinear response

摘要

In order to calculate the concentrations of key components of medically biological fluid sample, the system and method of the present invention, when sufficient AC excitation voltage is applied to the sample to generate the faradaic current response I use the linear component of the Faraday current response of nonlinear generated from a biological fluid sample. By the applied potential, the current response is caused by excitation of electrochemical activity in the sample. linear component of the current response to AC voltage normally applied includes admittance information and / or the phase angle can be correlated to the concentration of component medically important. Also, typically, the basic linear component of the current response is used in the disclosed systems and methods. Further, harmonics of the fundamental linear components may also be used. Other methods and devices are disclosed.