Abstract
The paper describes the determination of tin by ASV using modified thick film electrodes. Three different types of electrodes were developed: One modified with a mixture of Nafion and mercury(II)acetate, one modified with diethyldithiocarbamate (DDC) or pyrrolidinedithiocarbamate (PDC) and mercury(II)acetate, and one modified with calomel. The analyte was accumulated on the electrode surface after special electrochemical pretreatment of the modified electrode. After recording the voltammogram the electrodes were electrochemically regenerated. By virtue of their lifetime and their measurement reproducibility, we preferred the DDC and PDC modified electrodes. They can be used for months without changing their chemical characteristics. The linear range for tin determination with these electrodes is between 1 and 100 μg/L; the detection limit was calculated as 0.9 μg/L. The electrodes were applied to the direct determination of tin in different canned fruit juices without special sample pretreatment.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 20 December 1996 / Revised: 11 March 1997 / Accepted: 13 March 1997
Rights and permissions
About this article
Cite this article
Faller, C., Henze, G., Stojko, N. et al. Modified solid electrodes for stripping voltammetric determination of tin. Fresenius J Anal Chem 358, 670–676 (1997). https://doi.org/10.1007/s002160050489
Issue Date:
DOI: https://doi.org/10.1007/s002160050489