Procedure for assay of liquids containing undissolved solids, semisolids or colloids
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United States of America Patent
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Apr 15, 2003
Grant Date -
N/A
app pub date -
Mar 19, 1998
filing date -
Mar 19, 1998
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Abstract
In qualitative or quantitative assays which employ a test device comprising a test strip pretreated for detection of a specified target analyte dissolved in a liquid medium, the presence of solid, semisolid and/or colloidal materials in the liquid medium may interfere with the assay results. The present invention involves collecting the sample from a flowing or quiescent pool of liquid also containing solid, semisolid or colloidal material with a swab comprised of a handle and a mass of fibrous material or foamed, open cell material which, when immersed in and thoroughly wetted by the liquid, entraps solid, semisolid and/or colloidal material and delivers only the liquid to the sample receiving zone of the test strip.
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