Sulphur containing carboxy methyl ion imprinted polymers (S‐IIPs) were applied as an electrode modifier for the electrochemical detection of Hg(II). A bare glassy carbon electrode (GCE) was modified by electro‐polymerizing a layer of pyrrole and then drop coating with S‐IIPs. The bare GCE, GCE/polypyrrole (GCE/PPy), GCE/polyprrole/non‐ion imprinted polymers (GCE/PPy/NIPs) and the GCE/polypyrrole/sulphur ion imprinted polymers (GCE/PPy/S‐IIPs) electrodes were characterised with Fourier Transmission Infrared (FTIR) and electrochemical impendence spectroscopy (EIS). The square wave anodic stripping voltammetry (SWASV) optimised conditions for the GCE/PPy/S‐IIPs were: a pH of 3, deposition potential of −1.0 V, pre‐concentration time of 60 s and 0.1 M HCl supporting electrolyte. The developed ion imprinted polymer electrochemical sensor was applied in the detection of Hg(II) in water. A detection limit of 0.1 μg L⁻¹ was calculated within a concentration range of 20–800 μg L⁻¹. The sensor was selective in the presence of interfering ions and method was validated with inductively coupled plasma‐optical emission spectrometry (ICP‐OES) using real water and standard water samples.

中文翻译：

---

聚吡咯/羧甲基纤维素离子印迹聚合物在电化学检测水中汞中的应用

含硫的羧甲基离子印迹聚合物（S-IIPs）被用作电化学修饰Hg（II）的电极改性剂。通过电聚合吡咯层，然后滴涂S-IIP来修饰裸露的玻璃碳电极（GCE）。裸露的GCE，GCE /聚吡咯（GCE / PPy），GCE /聚吡咯/非离子印迹聚合物（GCE / PPy / NIP）和GCE /聚吡咯/硫离子印迹聚合物（GCE / PPy / S-IIPs）电极通过傅立叶透射红外（FTIR）和电化学阻抗谱（EIS）进行表征。用于GCE / PPy / S-IIPs的方波阳极溶出伏安法（SWASV）优化条件为：pH为3，沉积电位为-1.0 V，预浓缩时间为60 s和0.1 M HCl支持电解质。研制的离子印迹聚合物电化学传感器用于水中Hg（II）的检测。检出限为0.1μgL^-1是在20–800μgL ^-1的浓度范围内计算的。该传感器在存在干扰离子的情况下具有选择性，并且使用真实水和标准水样通过电感耦合等离子体发射光谱法（ICP-OES）验证了方法。