METHOD FOR MEASURING AN ANALYTE IN BLOOD
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Abstract
An electrochemical immunosensor system with reduced interference, comprising: a first immunosensor that generates an electrochemical signal based on the formation of a sandwich between an immobilized antibody, a target analyte and a labeled antibody, wherein a portion of the signal arises from non-specific binding of the labeled antibody in the region of the first immunosensor, and
- a second immunosensor that acts as an immuno-reference sensor and generates a signal that is the same as or predictably related to the degree of non-specific binding which occurs in the region of the first immunosensor, and has an immunocomplex between an immobilized antibody and an endogenous or exogenous protein that is in the sample and that is not the target analyte.
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Citations
77 Claims
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1-68. -68. (canceled)
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69. A method for measuring an analyte in blood in an immunoassay device
while reducing interference associated with a buffy coat, comprising: adding a salt reagent to a whole-blood sample for an immunoassay device to increase the ionic strength of the sample and thereby reduce interference from the buffy coat when the sample contacts an immunosensor. - View Dependent Claims (70, 71, 72, 73, 74, 75, 76, 77)
Specification