In the present paper, for the first time, the integrated three-electrode screen-printed sensor with in situ plated bismuth film carbon working electrode was applied for the ultratrace determination of thallium(I) (Tl(I)). Under optimized conditions extremely low limits of detection were reached, 8.47 × 10-10 and 6.71 × 10-12 mol L-1 for the deposition times of 60 s and 300 s, respectively. The influences of foreign metal ions and surfactants on the voltammetric signal of thallium in natural samples were minimized using 1 × 10-5 mol L-1 EDTA and Amberlite XAD-7 resin added to the buffer solution (CH3COONH4, CH3COOH and NH4Cl) of pH = 4.6 ± 0.1. The developed voltammetric method with integrated three-electrode screen-printed sensor was validated with use of certified reference materials (surface, rain and natural water) and can be in future applied to field analyses of Tl(I).

中文翻译：

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用铋膜修饰的集成三电极丝网印刷传感器，用于在超痕量水平伏安法测定铊 (I)

在本文中，首次将具有原位镀铋膜碳工作电极的集成三电极丝网印刷传感器应用于铊（I）（Tl（I））的超痕量测定。在优化条件下，60 s 和300 s 的沉积时间分别达到了8.47 × 10-10 和6.71 × 10-12 mol L-1 的极低检测限。将 1 × 10-5 mol L-1 EDTA 和 Amberlite XAD-7 树脂添加到 pH 值的缓冲溶液（CH3COONH4、CH3COOH 和 NH4Cl）中，将外来金属离子和表面活性剂对天然样品中铊伏安信号的影响降至最低= 4.6±0.1。开发的带有集成三电极丝网印刷传感器的伏安法通过使用经认证的参考材料（表面、