| 分子印迹膜电化学传感器检测土壤中莠去津 |
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| 引用本文： | 马永飞,曲祥金,艾仕云,殷焕顺,杜红霞.分子印迹膜电化学传感器检测土壤中莠去津[J].化学研究与应用,2009,21(5). |
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| 作者姓名： | 马永飞 曲祥金 艾仕云 殷焕顺 杜红霞 |
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| 作者单位： | 山东农业大学化学与材料科学学院,山东,泰安,271018 |
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| 摘 要： | 本文报道了一种对莠去津有识别特性的分子印迹膜的制备,即在含和不含模板分子(莠去津)的情况下,通过循环伏安技术在金电极表面沉积2-巯基苯并咪唑,制备了2-巯基苯并咪唑聚合膜.利用循环伏安法对印迹和非印迹膜行为进行了评价,对分子印迹膜的影响因素进行了筛选和优化.实验表明,该分子印迹膜对莠去津具有良好的选择性和灵敏度.莠去津的还原峰电流与莠去津的浓度在 1.2 ×10 - 8mal/L～8.0 ×10 - 5mol/ L 范围内具有良好的线性关系( r=0.99862),检出限可达 3.0 ×10 - 9mol/ L.将此传感器用于土壤中莠去津的测定,回收率在90.8% ～ 98.2%之间,取得了很好的结果.
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| 关 键 词： | 分子印迹技术 莠去津 电流型传感器 |
Determination of atrazine in soil sample based on molecularly imprinted film electrochemical sensors |
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| MA Yong-fei,QU Xiang-jin,AI Shi-yun,YIN Huan-shun,DU Hong-xia.Determination of atrazine in soil sample based on molecularly imprinted film electrochemical sensors[J].Chemical Research and Application,2009,21(5). |
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| Authors: | MA Yong-fei QU Xiang-jin AI Shi-yun YIN Huan-shun DU Hong-xia |
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| Institution: | College of chemistry and material science;Shandong Agricultural University;Taian 271018;China |
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| Abstract: | Preparation of a molecularly imprinted polymer(MIP) film and its recognition property for atrazine are investigated.The 2-mercaptobenzimidazole polymer ?lm was deposited in 2-mercaptobenzimidazole solution with and without a template molecule(atrazine) on a gold electrode by cyclic voltammetric technology.The performance of the imprinted and non-imprinted(NIP)film were evaluated by cyclic voltammetry(CV).The performance of the imprinted film was investigated and optimized.The molecularly imprinted film exhi... |
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| Keywords: | molecular imprinting technology atrazine amperometric sensor |
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