In situ deposition of bismuth on pre-anodized screen-printed electrode for sensitive determination of Cd²⁺ in water and rice with a portable device.

ABSTRACT: Electrochemical detection is favorable for the rapid and sensitive determination of heavy metal cadmium. However, the detection sensitivity needs to be further improved, and a portable, low-cost device is needed for on-site detection. Herein, an in-situ bismuth modified pre-anodized screen-printed carbon electrode (SPCE) was developed for Cd²⁺ determination by square wave anodic stripping voltammetry (SWASV). The in-situ bismuth modification enhances the enrichment of Cd²⁺, and together with pre-anodization improve the electron transfer rate of electrode, thus enhancing the detection sensitivity. The electrode modification method combines pre-anodization and in-situ bismuth deposition, which is very easy and effective. Furthermore, a self-made PSoC Stat potentiostat c

SUBMITTER: Li Y 

PROVIDER: S-EPMC11310196 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature