Fibre optic chloride sensor based on fluorescence quenching of an acridinium dye
نویسندگان
چکیده
In this paper, research into the fabrication and characterization of a new fibre optic sensor for chloride ion detection is reported. This sensor is based on the fluorescence quenching of an acridinium dye, which is covalently bound to polymer substrates, in presence of chloride ions. The active material is formed as a powder and packed in a tablet form. Calibration data shows that this fibre optic sensor shows a sensitivity to chloride at concentrations larger than 0.1M.
منابع مشابه
Optical thin ®lm polymeric sensors for the determination of aqueous chloride, bromide and iodide ions at high pH, based on the quenching of ̄uorescence of two acridinium dyes
Two halide sensitive acridinium ̄uorophores have been synthesised and immobilised in a hydrophilic copolymer. Thin ®lms of the copolymers swell in aqueous media allowing dye ̄uorescence to be dynamically quenched by the diusion of halide ions. The new sensor ®lms have been characterised in terms of their sensitivity and selectivity towards halide and are compared to ®lms containing both bound ...
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