Abstract This work presents the development and validation of 8 new in situ bismuth-copper-film electrodes (BiCuFEs) for Zn(II), Cd(II), and Pb(II) trace analysis in 0.1 M acetate buffer. The BiCuFEs were compared with in situ copper-film (CuFE) electrodes – new electrodes that have recently been reported. The formation of every in situ electrode was performed at two different concentrations, i.e. 0.5 and 1.0 mg/L. All BiCuFEs were selective for Zn(II), Cd(II), and Pb(II) determination. By using different BiCuFEs, the lower limit of the linear concentration ranges for Zn(II), Cd(II), and Pb(II) was generally lower compared with those for the CuFEs. Moreover, the BiCuFEs were generally more sensitive and had lower limits of detection for Zn(II), Cd(II), and Pb(II) determination than the CuFEs. The precision of the methods and the precision of the systems were satisfactory for the vast majority of the electrodes tested (RSD

中文翻译：

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用于重金属检测的铜铋膜原位电极

摘要 本工作介绍了 8 种新型原位铋铜膜电极 (BiCuFE) 的开发和验证，用于在 0.1 M 醋酸盐缓冲液中进行 Zn(II)、Cd(II) 和 Pb(II) 痕量分析。将 BiCuFE 与原位铜膜 (CuFE) 电极（最近报道的新电极）进行了比较。每个原位电极的形成在两种不同的浓度下进行，即0.5和1.0mg/L。所有 BiCuFE 都对 Zn(II)、Cd(II) 和 Pb(II) 的测定具有选择性。通过使用不同的 BiCuFEs，与 CuFEs 相比，Zn(II)、Cd(II) 和 Pb(II) 的线性浓度范围的下限通常较低。此外，与 CuFE 相比，BiCuFE 通常更灵敏，对 Zn(II)、Cd(II) 和 Pb(II) 的测定具有更低的检测限。