四氨基酞菁铜/单壁碳纳米管修饰电极测定食醋中多菌灵残留Determination of Carbendazim Residues in Vinegar by CuTAPc/SWCNT/GC Modified Electrode
吴双,陶波
摘要(Abstract):
建立了一种电化学分析的食醋中多菌灵快速检测方法。采用电聚合法制备了CuTAPc/SWC-NT/GC修饰电极,考察了多菌灵在修饰电极上的电化学行为以及支持介质、pH值、修饰剂用量、扫描速度以及温度等因素对测定的影响。结果表明,BCM的氧化峰电流值与其浓度在3.0×10-7~6.0×10-6 mol/L范围内呈良好的线性关系,线性方程为:Ip(A)=2.216c(mol/L)+1.084×10-6,检测限为3.2×10-8 mol/L。测定食醋样品的加标回收率为98.8%~103.3%。
关键词(KeyWords): 食醋;多菌灵;检测;电化学;修饰电极
基金项目(Foundation):
作者(Author): 吴双,陶波
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