摘要
建立了一种适合研发电化学仪器的新型二次开发平台,开发了一系列仪器模块和组件,并利用此平台研制了一种操作方便、成本低廉的微型半自动阳极溶出伏安仪(MASV)。仪器采用了20位数模转换器和16位模数转换器,电流测量范围为1 pA~20 mA;支持线形扫描法和微分脉冲伏安法等电化学方法。电解池可原位清洗,搅拌均匀高效且速度可调;仪器体积小,且不需要外接电源,操作方便。利用MASV进行了一系列阳极溶出实验,获得了Cd2+和Pb2+溶液的标准曲线,其相关系数均大于0.999,检出限可达μg/L数量级,重现性较好。测试了环境水样中的Cd2+和Pb2+的含量。
A secondary development platform with a series of software components and hardware modules were developed for the rapid instrument designing. A portable anodic stripping voltametric analyzer(MASV) which consists of a special cell with stir and a high performance electrochemistry detector was designed based on this platform. The performance of present analyzer was demonstrated in the measurement of trace Cd^2+/Pb^2+ (μg/L level) in standard solution and environment water sample.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2009年第5期776-779,共4页
Chinese Journal of Analytical Chemistry
关键词
二次开发
阳极溶出
电化学分析仪
Secondary development, anodic striping voltametric, electrochemical analyzer
作者简介
E-mail:yxia@ciac.jl.cn