Determination of selected polycyclic aromatic compounds in particulate matter: a validation study of an agitation extraction method for samples with low mass loadings using reduced volumes

3rd Iberian Meeting on Aerosol Science and Technology

García-Alonso, S.^1 ; Pérez-Pastor, R.M.^1 ; Archilla-Prat, V.^2 ; Rodríguez-Maroto, J.^1 ; Izquierdo-Díaz, M.^2 ; Rojas, E.^1 ; Sanz, D.^1

CIEMAT, Av. Complutense 22, Madrid

28040, Spain^1

Turbojet Engine Test Centre, INTA, Ctra Ajalvir km4, Torrejón de Ardoz, Madrid

28850, Spain^2

关键词: Analytical method;    Extraction method;    Extraction techniques;    Gas turbine exhausts;    Particulate Matter;    Polycyclic aromatic compounds;    Pressurized fluids;    Validation study;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/28/1/012008/pdf
DOI  :  10.1088/1755-1315/28/1/012008

来源: IOP

【 摘 要 】

A simple analytical method using low volumes of solvent for determining selected PAHs and NPAHs in PM samples is presented. The proposed extraction method was compared with pressurized fluid (PFE) and microwave (MC) extraction techniques and intermediate precision associated to analytical measurements were estimated. Extraction by agitation with 8 mL of dichloromethane yielded recoveries above 80% compared to those obtained from PFE extraction. Regarding intermediate precision results, values between 10-20% were reached showing increases of dispersion for compounds with high volatility and low levels of concentration. Within the framework of the INTA/CIEMAT research agreement for the PM characterization in gas turbine exhaust, the method was applied for analysis of aluminum foil substrates and quartz filters with mass loading ranged from 0.02 to 2 mg per sample.