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Development and implementation of the CCME Reference Method for the Canada-Wide Standard for Petroleum Hydrocarbons (PHC) in soil: a case study.

Turle R, Nason T, Malle H, Fowlie P

Environmental Technology Centre, Environment Canada, 335 River Road, Ottawa, ON, K1A 0H3, Canada. Richard.turle@ec.gc.ca

Petroleum hydrocarbons have historically been analyzed by a wide variety of test methods. Interlaboratory studies have shown that standardization of both extraction and gas chromatographic analysis improved interlaboratory variability in hydrocarbon analysis. The Canadian Council of Ministers of the Environment has required a reference method for use with the Canada-wide standard for petroleum hydrocarbons. The process for developing and validating this method is described. This method requires the determination of 4 hydrocarbon fractions, namely, F1 (nC6 to nC10), F2 (>nC10 to nC16), F3 (>nC16 to nC34) and, F4 (nC35+), using GC-FID or gravimetry. The Tier 1 method was validated in a single laboratory study. This validated method was subjected to interlaboratory studies to determine its applicability and precision.

Published 29 January 2007 in Anal Bioanal Chem, 387(3): 957-64.
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