| 对硫磷在聚结晶紫薄膜修饰电极上的电化学行为及其应用 |
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| 引用本文： | 毛雪雯,黄晓东,李克农,严校平. 对硫磷在聚结晶紫薄膜修饰电极上的电化学行为及其应用[J]. 安徽机电学院学报, 2010, 0(2): 4-6,13 |
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| 作者姓名： | 毛雪雯 黄晓东 李克农 严校平 |
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| 作者单位： | 安徽工程大学微生物发酵安徽省工程技术研究中心,安徽芜湖241000 |
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| 摘 要： | 利用循环伏安法制备了聚结晶紫薄膜修饰电极（PCVE）,并将该修饰电极用于有机磷农药的测定.在0.1 mol/L的柠檬酸缓冲溶液中（pH=2.0）,对硫磷的质量浓度在1.0-8.0μg/mL的范围内与还原峰电流呈良好的线性关系,r=0.998 3,检出限为9.4×10-3μg/mL.该聚结晶紫修饰电极具有良好的重现性,对含对硫磷为0.50 mg/L的试液进行平行测定10次,得到标准偏差2.1%.该法用于实际水样的测定,结果满意.
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| 关 键 词： | 聚结晶紫 化学修饰电极 循环伏安法 有机磷农药 对硫磷 |
Electrochemical sensor based on poly crystal violet for the direct detection of parathion |
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| MAO Xue-wen,HUANG Xiao-dong,LI Ke-long,YAN Xiao-ping. Electrochemical sensor based on poly crystal violet for the direct detection of parathion[J]. Journal of Anhui Institute of Mechanical and Electrical Engineering, 2010, 0(2): 4-6,13 |
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| Authors: | MAO Xue-wen HUANG Xiao-dong LI Ke-long YAN Xiao-ping |
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| Affiliation: | (Engineering Technology Research Center of Microbial Fermentation of Anhui Province, Anhui Polytechnic University, Wuhu 241000, China) |
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| Abstract: | The cyclic vohammetry was employed to prepare crystal violet polyethylene film modified electrode,which was used for determination of organophosphorus pesticides. In the 0. 1 mol/L citric acid buffer solution,there was an excellent linearity relationship between reduction current and concentration of parathion in the range of 1.0- 8.0 ug/mL,r = 0. 998 9,the detection limit was determined as 0. 094 mg/L. This modified electrode has good reproducibility;the standard deviation was determined as 2. 1% viaten times parallel determinations. The method was also applied to determine parathion in water sam- ples with satisfactory results. |
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| Keywords: | poly-erystal violet chemically modified electrode cyclic voltammetry method organophosphorus pesticides parathion |
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