Electrochemical oxidative determination of 4-nitrophenol based on a glassy carbon electrode modified with a hydroxyapatite nanopowder

被引：177
作者：
Yin, Huanshun [1 ,2 ]
Zhou, Yunlei [1 ]
Ai, Shiyun [1 ]
Liu, Xianggang [1 ]
Zhu, Lusheng [2 ]
Lu, Linan [3 ]
机构：
[1] Shandong Agr Univ, Coll Chem & Mat Sci, Tai An 271018, Shandong, Peoples R China
[2] Shandong Agr Univ, Coll Resources & Environm, Tai An 271018, Shandong, Peoples R China
[3] Liaoning Normal Univ, Sch Chem & Chem Engn, Dalian 116029, Liaoning, Peoples R China
来源：
MICROCHIMICA ACTA | 2010年 / 169卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
4-Nitrophenol; Hydroxyapatite nanopowder; Electrochemistry oxidation; Determination; Water sample; VOLTAMMETRIC DETERMINATION; PASTE ELECTRODE; P-NITROPHENOL; IONIC LIQUID; PHENOL; FILM; ADSORPTION; ISOMERS; SENSOR; GOLD;
D O I：
10.1007/s00604-010-0309-1
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A glassy carbon electrode was modified with hydroxyapatite nanopowder (HA-NP) and characterized in terms of electrochemical oxidation of 4-nitrophenol (4-NP) via cyclic voltammetry, differential pulse voltammetry, chronoamperometry, and chronocoulumetry. The oxidation peak current of 4-NP at the modified electrode was increased (compared to the bare GCE), thus indicating that the HA-NP exhibits a remarkable enhancement effect on the electrochemical oxidation of 4-NP. The effects of loading with HA-NP, pH value, scan rate and accumulation time were examined. The oxidation peak current of 4-NP is proportional to its concentration in the range from 1.0 mu M to 300 mu M, with a correlation coefficient of 0.9996. The detection limit is 0.6 mu M (at an S/N = 3). The method is simple, selective and sensitive. It was successfully applied to the determination of 4-NP in water samples, with recoveries ranging from 96% to 104%.
引用
收藏
页码：87 / 92
页数：6
相关论文
共 35 条
[1]   Electrocatalytic oxidation of chlorophenols by electropolymerised nickel(II) tetrakis benzylmercapto and dodecylmercapto metallophthalocyanines complexes on gold electrodes [J].
Agboola, Bolade ;
Nyokong, Tebello .
ELECTROCHIMICA ACTA, 2007, 52 (15) :5039-5045
[2]  
ANDRIEUX CP, 1978, J ELECTROANAL CHEM, V93, P163, DOI 10.1016/S0022-0728(78)80230-7
[3]  
[Anonymous], 2001, ELECTROCHEMICAL METH
[4]   APPLICATION OF POTENTIOSTATIC CURRENT INTEGRATION TO STUDY OF ADSORPTION OF COBALT(3)-)ETHYLENEDINITRILO)TETRAACETATE ON MERCURY ELECTRODES [J].
ANSON, FC .
ANALYTICAL CHEMISTRY, 1964, 36 (04) :932-&
[5]   Electroanalytical determination of acid phosphatase activity by monitoring p-nitrophenol [J].
Calvo-Marzal, P ;
Rosatto, SS ;
Granjeiro, PA ;
Aoyama, H ;
Kubota, LT .
ANALYTICA CHIMICA ACTA, 2001, 441 (02) :207-214
[6]   Determination of kinetic parameters for borohydride oxidation on a rotating Au disk electrode [J].
Cheng, H ;
Scott, K .
ELECTROCHIMICA ACTA, 2006, 51 (17) :3429-3433
[7]  
Cordero-Rando MD, 1999, MIKROCHIM ACTA, V132, P7
[8]   Oxidative phenol coupling - tyrosine dimers and libraries containing tyrosyl peptide dimers [J].
Eickhoff, H ;
Jung, G ;
Rieker, A .
TETRAHEDRON, 2001, 57 (02) :353-364
[9]   Electrochemical determination of para-nitrophenol at apatite-modified carbon paste electrode: Application in river water samples [J].
El Mhammedi, M. A. ;
Achak, M. ;
Bakasse, M. ;
Chtaini, A. .
JOURNAL OF HAZARDOUS MATERIALS, 2009, 163 (01) :323-328
[10]   Ca10(PO4)6(OH)2-modified carbon-paste electrode for the determination of trace lead(II) by square-wave voltammetry [J].
El Mhammedi, M. A. ;
Achak, M. ;
Chtaini, A. .
JOURNAL OF HAZARDOUS MATERIALS, 2009, 161 (01) :55-61
1234