pH and pCO.sub.2 sensing by luminescent lifetimes and energy transfer
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United States of America Patent
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Jul 15, 1997
Issued Date -
N/A
app pub date -
Mar 14, 1995
filing date -
May 3, 1991
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Abstract
A method for determining pH or pCO.sub.2 using luminescent lifetimes and energy transfer in which an energy transfer donor-acceptor pair is exposed to a sample to be analyzed, the donor of the donor-acceptor pair being photoluminescent and the acceptor of the donor-acceptor pair being sensitive to the pH or pCO.sub.2 of the sample. One or both of the donor-acceptor pair may be bound to a carrier. The sample is irradiated and the resultant emission detected. By measuring the apparent luminescent lifetime, the pH or pCO.sub.2 of the sample can be determined.
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