Determination of particulate polycyclic aromatic hydrocarbons in ambient air by gas chromatography-mass spectrometry after molecularly imprinted polymer extraction

作     者：Maria Chiara Pietrogrande Giorgia Demaria Mara Russo 

作者机构：Department of ChemicalPharmaceutical and Agraricultural SciencesUniversity of FerraraVia Fossato di Mortara 17/1944121 FerraraItaly 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2023年第124卷第2期

页      面：644-654页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070602[理学-大气物理学与大气环境] 070302[理学-分析化学] 0706[理学-大气科学] 0703[理学-化学] 

基　　金：supported by the Emilia Romagna Region (POR FESR 2014-2020) project IPA/BC-MONITOR (No. E32I16000030007 2016) 

主　　题：Polycyclic aromatic hydrocarbons Atmospheric particle matter Molecularly imprinted polymers-solid-phase extraction Solid phase micro extraction GC/MS analysis 

摘      要：A solid phase extraction procedure(SPE)is described for the quantitative analysis of polycyclic aromatic hydrocarbons(PAHs)in atmospheric particulate matter(PM),as ubiquitous environmental pollutants routinely measured in air qualitymonitoring.A SPE cartridge was used based on a molecular imprinted polymer(MIP-SPE)properly tailored for selective retention of PAHs with 4 and more benzene fused *** performance of the clean-up procedure was evaluated with the specific concern of selective purification towards saturated hydrocarbons,which are the PM components mostly interfering GC analysis of target *** optimized operative conditions,the MIP-SPE provided analyte recovery close to 95%for heavier PAHs,from benzo(α)pyrene to benzo(ghi)perylene,and close to 90%for four benzene rings PAHs,with good reproducibility(RSDs:2.5%-5.9%).Otherwise,C_(17)-C_(32) n-alkanes were nearly completely *** proposed method was critically compared with Solid Phase Micro Extraction(SPME)using a polyacrylate *** methods were successfully applied to the analysis of ambient PM2.5 samples collected at an urban polluted *** the two procedures,the MIP-SPE provided the highest recovery(R%≥93%)for PAHs with 5 and more benzene rings,but lower for lighter *** contrast,SPME showed a mean acceptable R%value(∼80%)for all the investigated PAHs,except for the heaviest PAHs in the most polluted samples(R%:110%-138%),suggesting an incomplete purification from the interfering n-hydrocarbons.