The bituminous material in Arctic peat: Implications for analyses of petroleum contamination

JOURNAL OF HAZARDOUS MATERIALS

卷:49

Article

White, DM ; Irvine, RL

关键词: bioremediation;    peat;    lipid;    extraction;    petroleum;    organic soil;   

DOI  :  10.1016/0304-3894(96)01759-1

来源: Elsevier

【 摘 要 】

The concentration of a contaminant in soil may be quantified by one of many laboratory procedures. In the organic soils of Arctic Alaska, however, procedures intended to quantify a contaminant cannot always differentiate between organic molecules derived from the contamination and molecules derived from the natural organic material (NOM). Research was conducted to assess the impact of NOM on standard methods for quantifying the concentration of crude oil in organic soil. The fraction of organic material extractable in various solvents used for petroleum extraction was quantified, and ranged between 0.5 and 10% of soil NOM. Gravimetric, infrared spectroscopic and GC/MS methods were considered in terms of their ability to differentiate and separate petroleum compounds from NOM. Gravimetric and spectroscopic methods were neither able to separate nor differentiate between compounds from petroleum and NOM. Using GC/MS, compounds from NOM could be differentiated, but not separated from compounds derived from crude oil. Extractable compounds from NOM were identified as n-alkanes (C-19-C-31), alcohols, aldehydes and ketones.

【 授权许可】

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