Fluorescence monitoring of a benzo[ a]pyrene metabolite using a regenerable immunochemical-based fiber-optic sensor

Microscale regenerable biosensors are described and utilized to measure the natural fluorophor benzo[ a]pyrene tetraol (BPT). The sensors combine laser-excited/fiber-optic remote sensing principles with a unique capillary tube delivery system to make repetitive, heterogeneous fluoroimmunoassay measu...

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Bibliographic Details
Published in:Analytica chimica acta 1990, Vol.236 (2), p.237-244
Main Authors: Alarie, Jean Pierre, Bowyer, James R., Sepaniak, Michael J., Hoyt, Arthur M., Vo-dinh, Tuan
Format: Article
Language:English
Subjects:
Benzo[ a]pyrene tetraol
Biosensors
Exact sciences and technology
Fibre-optic sensor
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Physics
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Summary:Microscale regenerable biosensors are described and utilized to measure the natural fluorophor benzo[ a]pyrene tetraol (BPT). The sensors combine laser-excited/fiber-optic remote sensing principles with a unique capillary tube delivery system to make repetitive, heterogeneous fluoroimmunoassay measurements. Two sensor configurations and modes of operation are described. Concentrations of BPT in the nanomolar range are easily measured with a reproducibility of 10% or better, depending on the sensor design, selective measurements can be made in ca. 20 min, then the sensor can be regenerated by delivering new reagents to the sensing chamber, without removing the sensor from the sample.
ISSN:0003-2670
1873-4324
DOI:10.1016/S0003-2670(00)83317-6