A FIBER OPTICAL SENSOR FOR HEAVY-METAL IONS BASED ON IMMOBILIZED XYLENOL ORANGE

被引：32
|
作者：
KLIMANT, I [1 ]
OTTO, M [1 ]
机构：
[1] BERGAKAD FREIBERG,DEPT CHEM,LEIPZIGER STR 29,O-9200 FREIBERG,GERMANY
来源：
MIKROCHIMICA ACTA | 1992年 / 108卷 / 1-2期
关键词：
FIBER OPTICAL SENSOR; HEAVY METAL IONS; XYLENOL ORANGE; LEAD;
D O I：
10.1007/BF01240367
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A new fiber optical reflectance sensor for determination of heavy metal ions is described. It is based on xylenol-orange which is electrostatically immobilized on an anion-exchange resin. The sensor was tested for lead ions. It is sensitive to Pb2+ ions in a concentration range from 3 x 10(-6) - 3 x 10(-5) M. A response time of 1.5-2 min was observed. The optrode is not fully reversible, but can be regenerated in acidic solution (pH 1).
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页码：11 / 17
页数：7
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