S.O.P. No. MLD 028 - Determination of Selected Polyaromatic Hydrocarbons
(PAH) in Ambient
This document describes the procedures followed by the Monitoring and Laboratory Division (MLD) staff for the determination of selected polyaromatic hydrocarbons (PAH): benzo(a)pyrene (BaP), benzo(b)fluoranthene (BbF), benzo(k)fluoranthene (BkF), dibenz[a,h]anthracene (DA), benzo[ghi]perylene (BP), and indeno[1,2,3-cd]pyrene (IP) in the ambient air samples utilizing a portion of PM10 filters.
SUMMARY OF METHOD
Atmospheric suspended particulate matter is collected over a 24-hour
period on a (8x10 inch) quartz fiber filter of a size selective inlet high
volume sampler. The PAHs are extracted from a (2x5 inch) strip of the filter
using 10% acetonitrile in dichloromethane solvent with sonication. The
extract is injected into a High Performance Liquid Chromatography (HPLC)
system and identified and quantified by reference to an external standard
with the use of fluorescence detection.