摘要
泡腾辅助微萃取(EAM)技术是一种利用CO_(2)供体和H^(+)供体反应产生CO_(2)气泡促进萃取剂快速分散、增大与目标物的接触面积,以实现高效萃取的新型样品预处理手段。该技术具有分散速率快、萃取效率高、使用成本低、应用范围广等优点。得益于萃取剂的快速发展,泡腾辅助微萃取方法的构建和应用范围研究日趋完善和多样,已广泛用于环境、食品、生物等样品的前处理领域。该前处理技术结合各类检测仪器构建新型快速的检测方法,成功实现了重金属离子、农药、内分泌干扰物、抗生素等污染物的检测。在EAM技术的构建中,常考查泡腾片剂的组成、溶液pH、萃取温度、萃取剂种类、萃取剂添加量、洗脱剂种类、洗脱剂体积、洗脱时间、循环使用次数等因素对方法的影响,重点依据线性范围、相关系数、富集因子、检出限、定量限等参数对方法进行评判,最后结合各类仪器检测方法,实现在实际样品检测中的应用。该文从EAM技术常用的萃取剂方面入手,综述了基于纳米材料、离子液体等新兴萃取剂的EAM方法的构建,以及与液相色谱、气相色谱、原子吸收光谱或质谱等大型仪器联用,用于复杂基质中有害物质检测的研究与应用进展,分析了该技术在使用过程中存在的问题,展望了其未来在微萃取领域中的发展趋势。
Effervescence-assisted microextraction(EAM)is a novel sample pretreatment method based on the reaction of CO_(2)and H^(+)donors to generate CO_(2)bubbles and promote rapid dispersion of the extractant.During this process,the unique dispersion method increases the contact area between the target molecule and the extraction solvent,and the adsorption/extraction efficiency of the adsorbent/extractant toward the target molecule is also enhanced.The EAM technique is of particular interest due its convenient application,low running costs,reduced solvent consumption,high extraction efficiency,and environmental friendliness.Benefiting from the rapid development of extractants,the evolution and application of the EAM technology is becoming more tuned and diversified.Indeed,the synthesis of new extractants,such as nanomaterials with multi-pore structures,large specific surface areas,and rich active sites,has attracted extensive attention,as has the development of ionic liquids with strong extraction abilities and high selectivities.As a result,the EAM technology has been widely applied to the pretreatment of target compounds in various samples,such as food,plant,biological,and environmental samples.However,since these samples often contain polysaccharides,peptides,proteins,inorganic salts,and other interfering substrates,it is necessary to remove some of these substances prior to extraction by EAM.This is commonly achieved using methods such as vortexing,centrifugation,and dilution,among others.The treated samples can then be extracted using the EAM method prior to detection using high performance liquid chromatography(HPLC),gas chromatography(GC),and atomic absorption spectroscopy(AAS)to detect substances such as heavy metal ions,pesticide residues,endocrine-disrupting compounds(EDCs),and antibiotics.Using effervescence as a novel assisted method for the dispersion of solvents or adsorbents,the concentrations of Pb 2+,Cd 2+,Ni 2+,Cu 2+,bisphenol,estrogen,and the pyrethyl pesticides have previously been successfully determ
作者
叶翰章
刘婷婷
丁永立
顾婧婧
李宇浩
王琪
张占恩
王学东
YE Hanzhang;LIU Tingting;DING Yongli;GU Jingjing;LI Yuhao;WANG Qi;ZHANG Zhan’en;WANG Xuedong(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009 China;Jiangsu Key Laboratory of Environmental Science and Engineering,Suzhou 215009,China)
出处
《色谱》
CAS
CSCD
北大核心
2023年第4期289-301,共13页
Chinese Journal of Chromatography
基金
江苏省重点研发项目(BE2022733)
国家自然科学基金资助项目(21876125,22076134)
江苏省自然科学基金资助项目(BK20211338)
苏州市科技局重点社发项目(SS202028).
关键词
泡腾辅助微萃取
样品前处理
纳米材料
离子液体
萃取剂
富集
检测
effervescence-assisted microextraction(EAM)
sample pretreatment
nanomaterial
ionic liquid
extractant
enrichment
detection
