Determination of mercury(II), methylmercury and ethylmercury in the ng/ml range with an electrochemical enzyme glucose probe

被引：29

作者：

Amine, A

Cremisini, C

Palleschi, G

机构：

[1] FAC SCI & TECH MOHAMMADIA,MOHAMMADIA,MOROCCO

[2] ENEA,DIPARTIMENTO AMBIENTE,SAF,MET,I-00060 ROME,ITALY

[3] UNIV NAPLES FEDERICO II,DIPARTIMENTO SCI ALIMENTI,I-80055 PORTICI,ITALY

来源：

MIKROCHIMICA ACTA | 1995年 / 121卷 / 1-4期

关键词：

mercury; methylmercury; ethylmercury; electrochemical probe; glucose enzyme probe;

D O I：

10.1007/BF01248250

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Hg(II), methylmercury and ethylmercury have been determined with an electrochemical glucose probe. Mercury and its compounds inhibit the enzyme invertase which, in presence of its substrate, sucrose, produces glucose. When invertase is in presence of mercury its activity decreases; this causes a decrease of glucose production, which is monitored by the glucose sensor and correlated to the concentration of mercury in solution. Parameters such as pH, enzyme concentration, substrate concentration, and reaction and incubation time were optimized. Results showed that mercury, methylmercury and ethylmercury can be detected directly in aqueous solution in the range 2-10 ng/ml.

引用

页码：183 / 190

页数：8

共 10 条

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