Patent ID: 7812622
Filing Date: 2010-10-12
Classification: G01N,Y10T

Abstract:
1. A sensor, comprising: a. an analytical sensor comprises first and second electrodes that are electrically separated by a non-conductive material; b. said analytical sensor is electrically connected to an alternating current (AC) analyzing device, wherein said AC analyzing device applies various frequencies of AC signals to said analytical sensor; c. said analytical sensor is brought into contact with a first fluid containing an analyte; d. AC related electrical properties are detected for said analytical sensor when contacted by said first fluid containing said analyte according to said applied various frequencies of said AC signals, wherein said electrical properties are detected at each of said applied various frequencies; and e. said detected AC related electrical properties are used for identification of said analyte according to frequencies in a selected subgroup of said applied various frequencies, wherein said frequencies in said selected subgroup include both higher and lower frequencies of said applied various frequencies.