基于原位形成低共熔溶剂的酸诱导—分散液液微萃取/高效液相色谱法测定环境水样中烷基酚  

Acid-induced dispersive liquid-liquid microextraction based on in-situ formation deep eutectic solvents for determination of alkylphenols in environmental water samples via high performance liquid chromatography

作　　者：张凯歌 陈雁容 王若彦 董爽 丁文博 王静 朱桂芬 Zhang Kaige;Chen Yanrong;Wang Ruoyan;Dong Shuang;Ding Wenbo;Wang Jing;Zhu Guifen(School of Environment,Henan Normal University,Xinxiang 453007,China)

机构地区：[1]河南师范大学环境学院,河南新乡453007

出　　处：《河南师范大学学报(自然科学版)》2025年第3期12-19,共8页Journal of Henan Normal University(Natural Science Edition)

基　　金：国家自然科学基金(21876045);河南省科技攻关项目(212102310533);河南省高等学校重点科研项目(22A610005).

摘　　要：近年来,黄河水污染现象日趋严重,其中烷基酚是重要的污染物之一.为此建立了一种基于原位形成低共熔溶剂的酸诱导—分散液液微萃取黄河水、卫河水和湖水等环境水样中烷基酚的方法.该方法以癸酸钠为萃取剂,加入盐酸后癸酸钠与盐酸反应生成癸酸,同时烷基酚通过与癸酸原位形成低共熔溶剂而被萃取.在优化条件下,4-庚基酚和4-壬基酚的线性范围为0.2~400μg·L^(-1),4-辛基酚的线性范围为0.3~400μg·L^(-1),检出限和定量限分别为0.05~0.10μg·L^(-1)和0.2~0.3μg·L^(-1),日内和日间精密度3.7%,富集倍数为21~38.与高效液相色谱联用,可用于环境水体中烷基酚的检测,加标回收率为92.3%~115.7%.本方法具有简单、快速、灵敏、低成本和绿色等优点.In recent years,the water pollution of the Yellow River has become more and more serious,among which alkyl phenols are one of the important pollutants.A new acid-induced dispersive liquid-liquid microextraction based on in-situ formation of deep eutectic solvents was developed for extraction of alkylphenols in the Yellow River,Weihe River and lake water.In this method,sodium caprate was used as the extraction solvent,and after the addition of hydrochloric acid,sodium caprate reacted with hydrochloric acid to generate capric acid,and then alkylphenol was extracted by in-situ formation of hydrophobic deep eutectic solvent with the generated capric acid.Under the optimized conditions,the linear range of 4-heptylphenol and 4-nonylphenol was 0.2-400μg·L^(-1),the linear range of 4-octylphenol was 0.3-400μg·L^(-1),the limits of detection and quantification were 0.05-0.10μg·L^(-1) and 0.2-0.3μg·L^(-1),respectively.And the intra-and inter-day precisions were 3.7%.The enrichment factor was 21-38.Coupled with a high-performance liquid chromatography-fluorescence detector,this method was applied for the detection of alkylphenols in environmental water with the recoveries of 92.3%-115.7%.This method has the advantages of simplicity,speed,low cost and environment-friendly.

关 键 词：低共熔溶剂 原位生成 分散液液微萃取 高效液相色谱 烷基酚 

分 类 号：O657[理学—分析化学]