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United States of America Patent
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Jan 4, 2011
Grant Date -
Mar 1, 2007
app pub date -
Aug 22, 2006
filing date -
Aug 25, 2005
priority date (Note) -
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Abstract
Composition has an indicating dye encapsulated by an encapsulating material. An encapsulated indicating dye can be combined with an organic substance absorbent and/or adsorbent. The composition, combination and/or a device having one or both of them can be used to indicate the presence of an organic substance by contacting the same with a sample, and, ascertaining whether an appropriate color release occurs to indicate the presence of the organic substance by contact of the organic substance with the composition, combination and/or device.
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