Antimony Film Microelectrode for Anodic Stripping Measurement of Cadmium(II), Lead(II) and Copper(II)
2010; Wiley; Volume: 22; Issue: 14 Linguagem: Inglês
10.1002/elan.200900583
ISSN1521-4109
AutoresMarija Slavec, Samo B. Hočevar, Lucie Baldrianová, Eva Tesařová, Ivan Švancara, Božidar Ogorevc, Karel Vytřas,
Tópico(s)Advanced Chemical Sensor Technologies
ResumoAbstract The antimony film microelectrode (SbFME) is presented for measuring trace heavy metal ions in combination with anodic stripping voltammetry. The SbFME was tested in model solutions of 0.01 M HCl containing Cd(II) and Pb(II) in the presence of dissolved oxygen. The microsensor exhibited good linear behavior in the examined concentration range 20 μg L −1 to 100 μg L −1 and LoD of 1.9 and 3.1 μg L −1 for Cd(II) and Pb(II), respectively. The suitability of SbFME for measuring trace levels of Cu(II) was demonstrated using the standard reference material of natural water exploiting the sensor's specific characteristic of low re‐oxidation signal for antimony.
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