期刊
ELECTROANALYSIS
卷 27, 期 2, 页码 309-316出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201400485
关键词
Arsenic; Carbon paste; Glutathione; Gold nanoparticles; Underground water
资金
- Commission Universitaire pour le Developpement (ARES_CCD) [PRD 2012]
A selective and sensitive electroanalytical method was developed for arsenic determination based on a nanogold (AuNP) modified solid carbon paste working electrode (SCPE) modified in two steps (i) physisorption and (ii) additional electrodeposition of nanogold particles in the presence of iodide. Copper(II) interference was solved by covering the gold layer by a self assembled mono layer (SAM) of glutathione. Using DPASV a linear response of the signal was obtained as a function of As(III) in the concentration range 0.05-20 mu M (4-1498 ppb) with a limit of detection of 0.01 mu M (0.9 ppb). Sample stirring and degassing were not needed. Application to the determination of arsenic(III) and (V) in underground water samples from Burkina Faso was successfully achieved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据