铋膜电极微分电位溶出法测定螺旋藻中铅的研究  

Determination of Lead in Spirulina Platensis by Differential Potentiometric Stripping Analysis with Bismuth-Film Electrodes

作　　者：王炯[1] 刘琼[1] 刘馨阳[1] 赵冬[1] 高云涛[1] 

机构地区：[1]云南民族大学化学与生物技术学院,云南昆明650031

出　　处：《云南民族大学学报（自然科学版）》2010年第5期372-374,共3页Journal of Yunnan Minzu University:Natural Sciences Edition

基　　金：云南省教育厅科学研究基金(08CD283)

摘　　要：建立了镀铋膜电极替代镀汞膜电极微分电位溶出分析(DPSA)测定铅的方法,考查了同位镀铋膜测定铅的条件.结果表明,铅可在镀铋膜电极上产生灵敏的微分电位溶出峰,并据此建立了螺旋藻中铅的同位镀铋微分电位溶出法.A novel substitutive differential potentiometric stripping analysis （DPSA） for the determination of lead via the bismuth -film electrode with the standard addition method was proposed. In oxalic acid, the sensitive stripping peaks （dt/dE） of the ions were obtained, The method has been applied to determine lead in spirulina platensis samples with satisfactory results.

关 键 词：螺旋藻 微分电位溶出法 铋膜电极 铅 

分 类 号：O657.1[理学—分析化学] O614.433[理学—化学]