基于介孔结构的上转换分子印迹荧光探针检测全氟辛烷磺酸

引用本文: 李晶, 郭会琴, 于慧, 田凌溪, 颜流水, 刘小明, 林立钶, 汪嘉琳. 基于介孔结构的上转换分子印迹荧光探针检测全氟辛烷磺酸[J]. 分析化学, 2020, 48(11): 1493-1501. doi: 10.19756/j.issn.0253-3820.201388 shu

Citation: LI Jing, GUO Hui-Qin, YU Hui, TIAN Ling-Xi, YAN Liu-Shui, LIU Xiao-Ming, LIN Li-Ke, WANG Jia-Lin. Detection of Perfluorooctane Sulfonate by Molecularly Imprinted Upconversion Fluorescent Probe with Mesoporous Structure[J]. Chinese Journal of Analytical Chemistry, 2020, 48(11): 1493-1501. doi: 10.19756/j.issn.0253-3820.201388 shu

基于介孔结构的上转换分子印迹荧光探针检测全氟辛烷磺酸

南昌航空大学环境与化学工程学院, 江西省持久性污染物控制与资源循环利用重点实验室, 南昌 330063

通讯作者: 郭会琴,guohuiqin@nchu.edu.cn

基金项目:
本文系国家自然科学基金项目（Nos.21665018，21966023，21366024）和江西省自然科学基金项目（No.20181BAB203014）资助

摘要: 全氟辛烷磺酸（Perfluorooctane sulfonate，PFOS）作为环境中最典型的全氟化合物之一，具有持久性、毒性及在生物体内积累等效应。发展快速、灵敏检测环境介质中PFOS的分析方法具有重要意义。本研究以PFOS为模板分子，N，O-双（三甲基硅烷基）三氟乙酰胺为功能单体，设计合成了具有介孔结构的表面分子印迹荧光探针NH₂-UCNPs@MIPs。PFOS可通过F-F与静电相互作用与NH₂-UCNPs@MIPs结合，导致其荧光猝灭，基于此建立了水溶液中PFOS（0.01~15 nmol/L浓度范围内）的高效识别和高灵敏检测技术，并实现了在酸性和中性条件下，对环境水样和人血清基质样品中痕量PFOS的检测。本研究为复杂基质中PFOS的快速检测提供了参考。

关键词:

English

Detection of Perfluorooctane Sulfonate by Molecularly Imprinted Upconversion Fluorescent Probe with Mesoporous Structure

School of Environmental and Chemical Engineering, Nanchang Hangkong University, Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang 330063, China

Corresponding author: GUO Hui-Qin, guohuiqin@nchu.edu.cn

Received Date: 03 July 2020
Revised Date: 29 July 2020
Fund Project:
This work was supported by the National Natural Science Foundation of China (Nos. 21665018, 21966023, 21366024).

Abstract: As one of the most typical perfluorinated compounds in the environment, perfluorooctane sulfonate (PFOS) has the characteristics of persistence, toxicity and accumulation in organisms. It is especially important to establish a rapid and highly sensitive method for detection of PFOS in environmental matrix. In this work, a mesoporous-structured molecularly imprinting fluorescent nanoprobe NH₂-unconversion nanoparticles@molecularly imprinted polymers (NH₂-UCNPs@MIPs) was fabricated with PFOS as template molecule and N,O-bis (trimethylsilyl) trifluoroacetamide as functional monomer. In the analytical process, PFOS could specifically bind amino groups and fluorine-containing groups on the surface of NH₂-UCNPs@MIPs, resulting in the fluorescence quenching of NH₂-UCNPs@MIPs. Based on this, a highly selective and sensitive detection of PFOS method was developed with linear range of 0.01-15 nmol/L. The nanoprobe was applied in PFOS detection in surface water and human serum matrix under both acidic and neutral conditions. This work provided a theoretical basis for the rapid and sensitive detection of trace PFOS in complex matrix.

Key words:

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基于介孔结构的上转换分子印迹荧光探针检测全氟辛烷磺酸

通讯作者: 郭会琴,guohuiqin@nchu.edu.cn

English

Detection of Perfluorooctane Sulfonate by Molecularly Imprinted Upconversion Fluorescent Probe with Mesoporous Structure

Corresponding author: GUO Hui-Qin, guohuiqin@nchu.edu.cn

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

基于介孔结构的上转换分子印迹荧光探针检测全氟辛烷磺酸

通讯作者: 郭会琴,guohuiqin@nchu.edu.cn

English

Detection of Perfluorooctane Sulfonate by Molecularly Imprinted Upconversion Fluorescent Probe with Mesoporous Structure

Corresponding author: GUO Hui-Qin, guohuiqin@nchu.edu.cn

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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