FIBEROPTIC PROBES FOR CYANIDE USING METALLOPORPHYRINS AND A CORRIN

被引：31
作者：
FREEMAN, MK
BACHAS, LG
机构：
[1] UNIV KENTUCKY,DEPT CHEM,LEXINGTON,KY 40506
[2] UNIV KENTUCKY,CTR MEMBRANE SCI,LEXINGTON,KY 40506
来源：
ANALYTICA CHIMICA ACTA | 1990年 / 241卷 / 01期
关键词：
CYANIDE; FIBEROPTIC CHEMICAL SENSORS; METALLOPORPHYRINS; CORRINS;
D O I：
10.1016/S0003-2670(00)83270-5
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Fiber-optic probes for cyanide detection were constructed using metalloporphyrins and a corrin. The probes are based on a change in absorbance that occurs when cyanide coordinates with the reagent used. Response times are as fast as 2 min for cyanide concentrations above 1 x 10(-5) M. The reproducibility at a given cyanide concentration level varies for the different reagents, but is most often below 5% (r.s.d.) for the useful portion of the calibration graph. The corrin-based probe is reversible and can be reused. The utility of each reagent is characterized in terms of response time, useful concentration range and reversibility.
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页码：119 / 125
页数：7
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