Immunoassays having at least two test spots and reference spot
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United States of America Patent
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Oct 18, 1994
Issued Date -
N/A
app pub date -
May 2, 1991
filing date -
Jan 19, 1988
priority date (Note) -
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Abstract
In one aspect, a kit for the semi-quantitative measurement, in a liquid sample, by competitive immunoassay, of a first member of a specific binding pair, the kit including a solid support bearing a reference area which provides a detectable signal in the immunoassay, and a first and a second test area exposed to contact the sample, each test area containing a different amount of second or first member of the specific binding pair, whereby the intensity of the detectable signal from the reference area can be compared with the intensity of any detectable signals from the first and second test areas in the presence of an unknown quantity of the first member in the sample.
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