Author(s): ZHUANG Quezhen, BAI Wu, YUAN Huimei, MA Jianguo
Pages: 79-82
Year: 2010 Issue:  1
Journal: Journal of East China Institute of Technology(Natural Science Edition)
Keyword:  壳聚糖; 衍生物; 溴离子; 修饰电极;
Abstract: 利用巯基壳聚糖对玻碳电极进行修饰,制备了新型的化学修饰电极.用阳极溶出伏安法研究了该电极对Br-的电化学行为,并利用该体系初步对天然水体中的Br-进行了测定.实验结果表明,在pH 1.80的H2SO4溶液中,阳极溶出峰与Br-浓度在3.5×10-5～6.5×10-3 g·ml-1范围内成良好的线性关系,相关系数达0.995 6,检出限为4.6×10-6g·ml-1.该方法重现性、稳定性良好,检测限...