Song Yiyan, Xu Zhihui, Yu Xinyu, Shi Xueyan, Jiang Huijun, Li Xiaoming, Kong Yan, Xu Qin, Chen Jin
School of Public Health, Nanjing Medical University, Nanjing 211166, China.
School of Pharmacy, Nanjing Medical University, Nanjing 211166, China.
Molecules. 2017 May 13;22(5):797. doi: 10.3390/molecules22050797.
BiOCl-SiO₂ KIT-6 composite materials with raspberry-like structures are facilely prepared under hydrothermal conditions. The mesoporous siliceous support of SiO₂ KIT-6-incorporated BiOCl with enlarged yet refined surface morphology characterized by physiochemical methods exhibits an improved electrochemical performance. A sensitive electrochemical detection method of cadmium concentration using square wave anodic stripping voltammetry was developed based on BiOCl-SiO₂ KIT-6 composite-modified glassy carbon electrodes, which displayed wide linear ranges of 0.5 to 10 μg/L and 10 to 300 μg/L and a detection limit of 65 ng/L. The sensitive, versatile and eco-friendly sensor was successfully applied for the determination of cadmium-spiked human blood samples.
在水热条件下可轻松制备出具有覆盆子状结构的BiOCl-SiO₂ KIT-6复合材料。通过物理化学方法表征的掺入BiOCl的SiO₂ KIT-6的介孔硅质载体具有扩大但细化的表面形态，展现出改善的电化学性能。基于BiOCl-SiO₂ KIT-6复合修饰玻碳电极开发了一种使用方波阳极溶出伏安法检测镉浓度的灵敏电化学检测方法，该方法显示出0.5至10 μg/L和10至300 μg/L的宽线性范围以及65 ng/L的检测限。该灵敏、通用且环保的传感器成功应用于加标人血样中镉的测定。
