Palladium biosensor

被引：39
作者：
Adam, Vojtech
Hanustiak, Pavel
Krizkova, Sona
Beklova, Miroslava
Zehnalek, Josef
Trnkova, Libuse
Horna, Ales
Sures, Bernd
Kizek, Rene
机构：
[1] Mendel Univ Agr & Forestry Brno, Dept Chem & Biochem, Fac Agron, CZ-61300 Brno, Czech Republic
[2] Mendel Univ Agr & Forestry Brno, Dept Anim Nutr & Forage Prod, Fac Agron, CZ-61300 Brno, Czech Republic
[3] Univ Vet & Pharmaceut Sci, Dept Vet Ecol & Environm Protect, CZ-61242 Brno, Czech Republic
[4] Masaryk Univ, Dept Theoret & Phys Chem, CZ-61137 Brno, Czech Republic
[5] Tomas Bata Univ, Fac Technol, Dept Food Engn & Chem, CZ-76272 Zlin, Czech Republic
[6] Univ Duisburg Essen, D-45117 Essen, Germany
来源：
ELECTROANALYSIS | 2007年 / 19卷 / 18期
关键词：
palladium ions; heavy metal; electrochemistry; electrochemical biosensor; environmental analysis;
D O I：
10.1002/elan.200703953
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this paper we proposed a palladium(II) biosensor. The biosensor is based on determining of interactions between palladium(II) and metallothionein modified hanging mercury drop electrode by means of differential pulse voltammetry. We studied influence of two supporting electrolytes (potassium or sodium chloride) on the signals of the biosensor. Based on the results obtained we found potassium chloride (0.05 M) as the most suitable supporting electrolyte to determine palladium(II). The detection limit of the biosensor for palladium ions was evaluated as 100 nM with RSD about 10%. Moreover, we utilized the biosensor for measurement of the target molecule in the presence of human blood serum and human urine.
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收藏
页码：1909 / 1914
页数：6
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