Fiber optic sensor, apparatus, and methods for detecting an organic analyte in a fluid or vapor sample
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United States of America Patent
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Sep 14, 1993
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app pub date -
Apr 20, 1992
filing date -
Jan 25, 1991
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Abstract
The present invention provides fiber optic sensors, apparatus, methods of optical detection, and methods of sensor manufacture for detection of organic analytes having a fixed polarity. The sensor requires an optical fiber strand; an immobilized polarity-sensitive dye; and an immobilized polymeric material which not only contains the polarity-sensitive dye but also absorbs and partitions the organic analyte of interest.
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