基于硫化钴镍/多壁碳纳米管复合材料的电化学传感器检测芦丁  

Detection of Rutin by Electrochemical Sensor Based on Cobalt-Nickel Sulphide/Multi-walled Carbon Nanotubes Composites

作　　者：黄青 李美仪 徐舒柔 诸葛文凤 冯锦鑫 廖珊珊 陈宇婷 许宁宁 张翠忠[1] 黄唯 彭金云[1] 凌晨东 何华凤 HUANG Qing;LI Mei-Yi;XU Shu-Rou;ZHUGE Wen-Feng;FENG Jin-Xin;LIAO Shan-Shan;CHEN Yu-Ting;XU Ning-Ning;ZHANG Cui-Zhong;HUANG Wei;PENG Jin-Yun;LING Chen-Dong;HE Hua-Feng(Guangxi Key Laboratory for High-value Utilization of Manganese Resources,College of Chemistry and Biological Engineering,Guangxi Minzu Normal University,Chongzuo 532200,China;Guangxi Huazheng New Energy Technology Co.Ltd.,Chongzuo 532200,China)

机构地区：[1]广西民族师范学院化学与生物工程学院,广西锰资源高值化利用重点实验室,崇左532200 [2]广西华政新能源科技有限公司,崇左532200

出　　处：《分析化学》2024年第12期1834-1843,共10页Chinese Journal of Analytical Chemistry

基　　金：广西高校中青年教师科研基础能力提升项目(No.2024KY0784);广西民族师范学院校级科研项目(Nos.2021SP030,2022XGSZ020);国家级大学生创新创业训练基金项目(No.202410604021)资助。

摘　　要：采用水热法制备硫化钴镍(NiCo_(2)S_(4))三元材料,将其与多壁碳纳米管(MWCNT)复合,构建了一种用于定量检测芦丁的电化学传感器。采用扫描电镜及X射线衍射仪对电化学材料进行了形貌表征与晶体分析,并研究了硫化钴镍/多壁碳纳米管复合材料(NiCo_(2)S_(4)/MWCNT)修饰玻碳电极(GCE)的电化学行为。结果表明,芦丁在复合材料修饰GCE表面发生了双电子和双质子的电化学氧化还原反应。在优化的条件下,采用方波伏安法(SWV)检测芦丁的线性范围为0.06~14.8μmol/L,检出限为14.3 nmol/L。此电化学传感器灵敏、简便、成本低,具有良好的重现性及可靠的稳定性,可用于芦丁的快速检测。将其用于复方芦丁片和珍菊降压片实际样品中芦丁含量的检测,加标回收率为99.5%~102.0%。The cobalt sulphide nickel ternary material(NiCo_(2)S_(4))prepared by hydrothermal method in this work was combined with multi-walled carbon nanotubes(MWCNT)for constructing an electrochemical sensor for quantitative detection of rutin.The morphology and crystal of the electrochemical materials were characterized by scanning electron microscopy and X-ray diffractometer,and the electrochemical behavior of the glassy carbon electrode(GCE)modified with NiCo_(2)S_(4)/MWCNT composites was investigated.The experimental results showed that the electrochemical redox process of two electrons and two protons occurred on the surface of modified electrode NiCo2S4/MWCNT/GCE.Under the optimized conditions,the linear range for detection of rutin by squarewave voltammetry(SWV)using this sensor was 0.06-14.8μmol/L and the detection limit was 14.3 nmol/L.The electrochemical sensor was sensitive,simple and low-cost,with good reproducibility and reliable stability,and could be used for detection of rutin in real samples such as compound rutin tablets and color chrysanthemi tablets,with spiked recoveries of 99.5%-102.0%.

关 键 词：芦丁 硫化钴镍 多壁碳纳米管 电化学传感器 

分 类 号：O657.1[理学—分析化学]