Sensitive Voltammetric Determination of Methyl Parathion Using a Carbon Paste Electrode Modified with Mesoporous Zirconia

被引：20
|
作者：
Tan, Xiaohong [1 ,2 ]
Li, Buhai [1 ]
Zhan, Guoqing [1 ]
Li, Chunya [1 ]
机构：
[1] S Cent Univ Nationalities, Coll Chem & Mat Sci, State Eth Affairs Commiss, Key Lab Analyt Chem, Wuhan 430074, Peoples R China
[2] Hubei Inst Nationalities, Sch Chem & Environm Engn, Enshi 445000, Peoples R China
来源：
ELECTROANALYSIS | 2010年 / 22卷 / 02期
关键词：
Mesoporous zirconia; Methyl parathion; Carbon paste electrode; Voltammetry; ORGANOPHOSPHATE PESTICIDES; FILM ELECTRODE; NERVE AGENTS; SILICA; SENSOR; NANOPARTICLES; ACETYLCHOLINESTERASE; ADSORPTION; BIOSENSOR; CATALYSTS;
D O I：
10.1002/elan.200900270
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A mesoporous zirconia modified carbon paste electrode was developed for electrochemical investigations of methyl parathion (MP, Phen-NO2,). The significant increase of the peak currents and the improvement of the redox peak potential indicate that mesoporous zirconia facilitates the electronic transfer of MP. The oxidation peak current Was proportional to the MP concentration in the range from 1.0 x 10(-8) to 1.0 x 10(-5) mol L-1 with a detection limit of 4.6 x 10(-9) mol L-1 (SIN = 3) after accumulation under open-circuit for 210 s. The proposed Method Was successfully applied to the determination of NIP in apple samples.
引用
收藏
页码：151 / 154
页数：4
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