固相萃取-液相色谱法在城镇污水微塑料检测中的应用OACHSSCD

Urban sewage serves as the core carrier for microplastics entering the natural environment,and the entrained microplastics pose a potential threat to the environment and human health.Solid-phase extraction-liquid chromatography,with its high separation efficiency and strong selectivity,has become the core technology for the detection of trace microplastics.This article expounds on the principle and technical composition of solid-phase extraction-liquid chromatography,analyzes the difficulties such as severe matrix interference,complex sample pretreatment,and limited instrument detection performance,and proposes targeted strategies such as optimizing extraction conditions,improving sample pretreatment processes,and adjusting instrument parameters,providing scientific and technical support for precise control of microplastic pollution in urban sewage.