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Fabrication of Nanoporous Copper Film for Electrochemical Detection of Glucose
被引:59
|作者:
Sattayasamitsathit, Sirilak
[1
,2
,3
]
Thavarungkul, Panote
[1
,2
,4
]
Thammakhet, Chongdee
[1
,2
,3
]
Limbut, Warakorn
[1
,2
,5
]
Numnuam, Apon
[1
,2
,3
]
Buranachai, Chittanon
[1
,4
]
Kanatharana, Proespichaya
[1
,2
,3
]
机构:
[1] Prince Songkla Univ, Trace Anal & Biosensor Res Ctr, Hat Yai 90112, Songkhla, Thailand
[2] Prince Songkla Univ, Fac Sci, Ctr Innovat Chem, Hat Yai 90112, Songkhla, Thailand
[3] Prince Songkla Univ, Fac Sci, Dept Chem, Hat Yai 90112, Songkhla, Thailand
[4] Prince Songkla Univ, Fac Sci, Dept Phys, Hat Yai 90112, Songkhla, Thailand
[5] Prince Songkla Univ, Fac Sci, Dept Gen Sci, Hat Yai 90112, Songkhla, Thailand
关键词:
Electrodeposition;
Porous copper electrode;
Flow injection;
Glucose detection;
Chemical etching;
Thin films;
HIGH-SURFACE-AREA;
CARBON NANOTUBE;
PLATINUM;
ELECTRODES;
NICKEL;
SYSTEM;
ACIDS;
CU;
D O I:
10.1002/elan.200904697
中图分类号:
O65 [分析化学];
学科分类号:
070302 ;
081704 ;
摘要:
A nanoporous copper film was fabricated oil a copper wire by electrodeposition of copper/zinc alloy and chemically etching of zinc. The surface morphology was investigated by SEM. When applied to detect glucose in an amperometric flow injection system the porous copper electrode provided 12 times higher sensitivity than solid copper. It could be continuously used LIP to 50 times (%RSD=5.7). Different preparations of the porous film provided reproducible responses (P < 0.05). Detection of glucose in E. coli cultivation medium compared well with spectrophotometric technique (P < 0.05). This simple technique can produce a nanoporous electrode with good performances and can easily be applied to other metals and analytes.
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页码:2371 / 2377
页数:7
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