Stripping Analysis of As(III) by Means of Screen-Printed Electrodes Modified with Gold Nanoparticles and Carbon Black Nanocomposite

被引：59
|
作者：
Cinti, Stefano [1 ,2 ]
Politi, Sara [1 ,2 ]
Moscone, Danila [1 ,2 ]
Palleschi, Giuseppe [1 ,2 ]
Arduini, Fabiana [1 ,2 ]
机构：
[1] Univ Roma Tor Vergata, Dipartimento Sci & Tecnol, I-00133 Rome, Italy
[2] INBB, Consorzio Interuniversitario Biostrutture & Biosi, Rome, Italy
来源：
ELECTROANALYSIS | 2014年 / 26卷 / 05期
关键词：
Arsenic detection; Screen-printed electrode; Gold nanoparticles; Carbon black; Stripping analysis; ELECTROCHEMICAL DETECTION; ARSENIC SPECIATION; VOLTAMMETRY; WATER; SENSORS; HEALTH; CELL;
D O I：
10.1002/elan.201400041
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A novel sensor based on carbon black-gold nanoparticle nanocomposite modified screen-printed electrode (CB-AuNPs/SPE) for the detection of As(III) has been developed. The sensor was prepared modifying the SPE with CB and AuNPs by a drop casting automatable deposition. The As(III) was detected by CB-AuNPs/SPE using anodic stripping voltammetry, with a high sensitivity (673 +/- 6 mu A mu M(-1)cm(-2)) and reaching a LOD of 0.4ppb. Finally, CB-AuNPs/SPE has been applied to As(III) trace analysis in drinking water, obtaining satisfactory recovery values (99 +/- 9%).
引用
收藏
页码：931 / 939
页数：9
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