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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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壳聚糖修饰电极测定碘的研究
, PP. 59-64
Keywords: 壳聚糖,碘,化学修饰电极,阳极溶出伏安法
Abstract:
应用共价键合法将壳聚糖修饰在玻碳电极表面,研究了I-在该修饰电极上的微分脉冲阳极溶出伏安特性,并对相关机理进行探讨.实验表明,修饰电极在pH为4.0的0.1mol·L-1KH2PO4溶液中,对I具有良好的吸附性和选择性,电极响应灵敏.其阳极溶出峰电流在2.0×10-6～2.0×10-3mol·L-1I-浓度范围内呈良好线性关系,检出下限达2.0×10-7mol·L-1.该法应用于食用碘盐中总碘量的测定,取得较好的结果.
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