A FIBEROPTIC CYCLODEXTRIN-BASED SENSOR

被引:31
作者
ALARIE, JP [1 ]
VO-DINH, T [1 ]
机构
[1] OAK RIDGE NATL LAB, DIV HLTH & SAFETY RES, ADV MONITORING DEV GRP, OAK RIDGE, TN 37831 USA
关键词
D O I
10.1016/0039-9140(91)80176-Z
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This paper describes the development of a fiber-optic cyclodextrin-based (FCD) sensor. The device uses laser excitation and fluorescence detection with beta-cyclodextrin as the reagent phase, immobilized at the tip of an optical fiber. The sensitivity of the FCD sensor is 14 times as great as that of a bare optical fiber when measurements are made with the fiber immersed in a buffer after a 10-min incubation period. The selectivity of the sensor is illustrated with pyrene as the model compound and 5,6-benzoquinoline as the interferent. An interference study with a contaminated environmental ground water sample is used to illustrate the usefulness of the FCD device.
引用
收藏
页码:529 / 534
页数:6
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