基于铁酸钴纳米颗粒-鲁米诺-H_(2)O_(2)化学发光体系的单宁酸超灵敏检测  

Ultra-sensitive detection of tannic acid based on CoFe_(2)O_(4)NPs-luminol-H_(2)O_(2) chemiluminescence system

作　　者：骆奋强 LUO Fen-qiang(Zhangzhou Food Industry Research Institute,Zhangzhou Institute of Technology,Fujian Zhangzhou 363000,China;College of Chemical Engineering,Zhangzhou Institute of Technology,Fujian Zhangzhou 363000,China)

机构地区：[1]漳州职业技术学院漳州市食品产业技术研究院,福建漳州363000 [2]漳州职业技术学院石油化工学院,福建漳州363000

出　　处：《齐齐哈尔大学学报（自然科学版）》2023年第6期84-89,共6页Journal of Qiqihar University(Natural Science Edition)

基　　金：漳州市食品产业技术研究院开放课题资助(ZSY2022110);福建省中青年教师教育科研项目(JAT220691);漳州职业技术学院博士科研启动基金(ZZYB2208)。

摘　　要：利用铁酸钴纳米颗粒(CoFe_(2)O_(4)NPs)催化鲁米诺-H_(2)O_(2)的化学发光,结合单宁酸会抑制CoFe_(2)O_(4)NPs的催化活性这一性质,首次建立一种简单、快速且超灵敏的单宁酸检测方法。在最佳实验条件下,CoFe_(2)O_(4)NPs-鲁米诺-H_(2)O_(2)体系对单宁酸的检测线性范围为5.0×10^(-9)~5.0×10^(-7)mol/L,检测限为2.5×10^(-10)mol/L。对比其他检测方法,该检测限极低,而且该检测体系选择性良好,有望将该方法运用于食品及水样中单宁酸的检测。In this paper,a simple,rapid and ultra-sensitive tannic acid detection method was established for the first time by using CoFe_(2)O_(4)NPs to catalyze the chemiluminescence of luminol-H_(2)O_(2),combined with the property that tannic acid can inhibit the catalytic activity of CoFe_(2)O_(4)NPs.Under optimum conditions,experimental results showed that the linear range and detection limit of CoFe_(2)O_(4)NPs-luminol-H_(2)O_(2) system for tannic acid were 5.0×10^(-9)~5.0×10^(-7) mol/L and 2.5×10^(-10) mol/L,respectively.Compared with other detection methods,the detection limit is extremely low,and the detection system has good selectivity.This method is expected to be applied to the determination of tannic acid in food and water samples.

关 键 词：铁酸钴 纳米颗粒 催化 化学发光 单宁酸 

分 类 号：O655[理学—分析化学]