Sensor for lead(II) ion based on a glassy carbon electrode modified with double-stranded DNA and ferric oxide nanoparticles

被引：23

作者：

Dai, Panpan ^{[1
]}

Yang, Zhousheng ^{[1
]}

机构：

[1] Anhui Normal Univ, Coll Chem & Mat Sci, Anhui Key Lab Chemobiosening, Wuhu 241000, Peoples R China

来源：

MICROCHIMICA ACTA | 2012年 / 176卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

alpha-Fe(2)O(3) nanoparticles; Double-stranded DNA; Pb(2+); Sensor; ANODIC-STRIPPING VOLTAMMETRY; ATOMIC EMISSION-SPECTROMETRY; SENSITIVE DETERMINATION; TRACE DETERMINATION; SILVER ELECTRODE; PASTE ELECTRODES; THIN-FILMS; METAL IONS; ICP-AES; CADMIUM;

D O I：

10.1007/s00604-011-0702-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Shuttle-like Fe(2)O(3) nanoparticles (NPs) were prepared by microwave-assisted synthesis and characterized by scanning electron microscopy and X-ray diffraction. The NPs were immobilized on a glassy carbon electrode and then covered with dsDNA. The resulting electrode gives a pair of well-defined redox peaks for Pb(II) at pH 6.0, with anodic and cathodic peak potentials occurring at -0.50 V and -0.75 V (vs. Ag/AgCl), respectively. The amperometric response to Pb(II) is linear in the range from 0.12 to 40 nM, and the detection limit is 0.1 nM at a signal-to-noise ratio of 3. The sensor exhibits high selectivity and reproducibility.

引用

页码：109 / 115

页数：7

共 40 条

[1] Process Map for the Hydrothermal Synthesis of α-Fe2O3 Nanorods [J].

Almeida, Trevor P. ;

Fay, Mike ;

Zhu, Yanqiu ;

Brown, Paul D. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (43) :18689-18698

[2]

Araki S, 2000, AM J IND MED, V37, P193

[3] Determination of lead, cadmium and copper in roadside soil and plants in Elazig, Turkey [J].

Bakirdere, Sezgin ;

Yaman, Mehmet .

ENVIRONMENTAL MONITORING AND ASSESSMENT, 2008, 136 (1-3) :401-410

[4] The silver electrode in square-wave anodic stripping voltammetry. Determination of Pb2+ without removal of oxygen [J].

Brand, M ;

Eshkenazi, I ;

KirovaEisner, E .

ANALYTICAL CHEMISTRY, 1997, 69 (22) :4660-4664

[5] Determination of reduced glutathione using an amperometric carbon paste electrode chemically modified with TTF-TCNQ [J].

Calvo-Marzal, P ;

Chumbimuni-Torres, KY ;

Höehr, NF ;

Neto, GD ;

Kubota, LT .

SENSORS AND ACTUATORS B-CHEMICAL, 2004, 100 (03) :333-340

[6] Sensitive determination of Cd and Pb by differential pulse stripping voltammetry with in situ bismuth-modified zeolite doped carbon paste electrodes [J].

Cao, Linyuan ;

Jia, Jianbo ;

Wang, Zhenhui .

ELECTROCHIMICA ACTA, 2008, 53 (05) :2177-2182

[7] ABTS-Multiwalled Carbon Nanotubes Nanocomposite/Bi Film Electrode for Sensitive Determination of Cd and Pb by Differential Pulse Stripping Voltammetry [J].

Deng, Wenfang ;

Tan, Yueming ;

Fang, Zhengfa ;

Xie, Qingji ;

Li, Yunyong ;

Liang, Xiaoling ;

Yao, Shouzhuo .

ELECTROANALYSIS, 2009, 21 (22) :2477-2485

[8] Determination of arsenic, lead, selenium and tin in sediments by slurry sampling electrothermal vaporization inductively coupled plasma mass spectrometry using Ru as permanent modifier and NaCl as a carrier [J].

Dias, LF ;

Saint'Pierre, TD ;

Maia, SM ;

da Silva, MAM ;

Frescura, VLA ;

Welz, B ;

Curtius, AJ .

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2002, 57 (12) :2003-2015

[9] Visible light-induced water oxidation on mesoscopic α-Fe2O3 films made by ultrasonic spray pyrolysis [J].

Duret, A ;

Grätzel, M .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (36) :17184-17191

[10] INTERACTION OF METAL IONS WITH POLYNUCLEOTIDES AND RELATED COMPOUNDS .12. RELATIVE EFFECT OF VARIOUS METAL IONS ON DNA HELICITY [J].

EICHHORN, GL ;

SHIN, YA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1968, 90 (26) :7323-&

← 1 2 3 4 →