Patent ID: 9575027
Date: 2017-02-21
CPC Classifications: C12Q,G01N

Claim:
1. A method for distinguishing between a blood sample and an aqueous non-blood sample, the method comprising: (a) introducing a sample into an electrochemical cell, the electrochemical cell comprising: (i) two electrodes in a spaced apart relationship; and (ii) a reagent; (b) applying a first test potential, having a first polarity, between the electrodes, and measuring cell current; (c) measuring a capacitance of the electrochemical cell; (d) summing at least two current values measured during the first test potential to generate a first reference value; (e) calculating a capacitance index (C (f) using the capacitance index and the first reference value to distinguish between a blood sample and an aqueous non-blood sample.