大连工业大学学报2018，Vol.37Issue(2)：113-116,4.DOI:10.19670/j.cnki.dlgydxxb.2018.0208
羟基磷灰石修饰碳糊电极(HAP-CPE)预镀铋膜法检测水体中的Pb2+和Cd2+
Hydroxyapatite modified carbon paste electrode(HAP-CPE)with pre-plating bismuth film for the determination of Pb2+and Cd2+
摘要
Abstract
The hydroxyapatite doped carbon paste electrode modified by pre-plating bismuth film was used to detect heavy metal ions(Pb2+,Cd2+)by differential pulse stripping voltammetry.The effects of the concentration of Bi3+,preconcentration potential and preconcentration time on the determination of heavy metal ions were investigated.The optimized conditions were as follows:the concentration of Bi3+of 200 μg/L,the preconcentration potential of -1.0 V and the preconcentration time of 360 s. The good linear relationship between peak currents and concentrations of Pb2+and Cd2+can be observed within the range from 10 to 350 μg/L for the electrode,and detection limits are 1.252 and 1.242 μg/L,respectively.Furthermore, the electrode shows excellent reproducibilit and high recovery for Pb2+and Cd2+(99.42% and 97.88%).The present method is promising technique for the simultaneous determination of Pb2+and Cd2+ions.关键词
碳糊电极/差分脉冲溶出伏安法/重金属Key words
carbon paste electrode/differential pulse stripping voltammetry/heavy metals分类
化学化工引用本文复制引用
田一骅,马红超,董晓丽,薛文平,马春,张欣新..羟基磷灰石修饰碳糊电极(HAP-CPE)预镀铋膜法检测水体中的Pb2+和Cd2+[J].大连工业大学学报,2018,37(2):113-116,4.基金项目
辽宁省自然科学基金项目(201602052) （201602052）
辽宁省高等学校优秀人才支持计划项目(LR2014013). （LR2014013）
