Method and apparatus for processing electrochemical signals
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United States of America Patent
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Aug 15, 2006
Grant Date -
Sep 25, 2003
app pub date -
Jan 15, 2003
filing date -
Jan 15, 2002
priority date (Note) -
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Abstract
Systems and methods are provided herein for improving the selectivity and productivity of sensors via digital signal processing techniques. According to one illustrative embodiment, in an electrochemical method for monitoring of a select analyte in a mixed sample with an interfering analyte, an improvement is provided that includes applying a large amplitude potential stimulus waveform to the sample to generate a nonlinear current signal; and resolving a signal contribution from the select analyte in the generated signal by a vector projection method with an analyte vector comprising a plurality of real and imaginary parts of one or more Fourier coefficients at one or more frequencies of a reference current signal for the select analyte.
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