Antimony film screen-printed carbon electrode for stripping analysis of Cd(II), Pb(II), and Cu(II) in natural samples.
作者： Velia Sosa , Cristian Barceló , Núria Serrano , Cristina Ariño , José Manuel Díaz-Cruz
DOI: 10.1016/J.ACA.2014.12.011
关键词:
摘要: Abstract An in-situ antimony film screen-printed carbon electrode ( SbSPCE) was successfully used for the determination of Cu(II) simultaneously with Cd(II) and Pb(II) ions, by means differential pulse anodic stripping voltammetry (DPASV), in a certified reference groundwater sample very high reproducibility good trueness. This is proposed as valuable alternative to bismuth electrodes, since no competition between electrodeposited copper surface sites noticed. In-situ SbSPCE microscopically characterized experimental parameters such deposition potential, accumulation time pH were optimized. The best voltammetric response simultaneous Cd(II), ions achieved when potential −1.2 V, 120 s 4.5. detection quantification limits at levels μg L −1 suggest that could be fully suitable natural samples.
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