固相微萃取与质谱联用技术在环境检测中的应用OA

Solid-phase microextraction(SPME)represents an integrated sample pretreatment technology combining extraction,concentration,desorption,and sampling processes in a single step.Characterized by operational simplicity,cost-effectiveness,high efficiency,and minimal solvent requirements,this technique has emerged as a critical analytical tool in environmental sciences since its initial development in the 1990s by Belardi and Pawliszyn at the University of Waterloo,Canada.The integration of SPME with mass spectrometry(MS)enables effective detection and quantitative analysis of environmental pollutants,establishing a robust methodology for environmental monitoring.This review systematically examines the fundamental principles of SPME technology,including its extraction mechanisms and advanced coating materials.It further analyzes three principal hyphenated techniques(SPME-GC-MS,SPME-LC/HPLC-MS,and SPME-AMS)through their operational characteristics and environmental application case studies.The paper concludes with a critical perspective on future research directions,focusing on technical optimization and expanded implementation potential in environmental analytical chemistry.