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The present work describes the trace analysis of Tl(I) in acidic medium (0.05molL −1 nitric acid) by square wave anodic stripping voltammetry (SWASV) at a tin film sensor with novel configuration. This “green” electroanalytical device features on-chip metal film electrodes (a Sn-film working electrode, a Ag-film reference electrode and a Pt-film counter electrode), fabricated by sputtering...
This work describes a novel type of disposable microfabricated tin-film electrode (SnFE) suitable for trace metal analysis by stripping voltammetry. The tin sensors were fabricated by sputtering of metallic tin on an oxidized silicon chip with the exact geometry of the sensors defined by photolithography. The resulting sensors were characterized by optical and electrochemical techniques. The SnFEs...
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