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Environmental Forensic Analysis Using Enhanced Petroleum Hydrocarbon Testing | Eurofins TestAmerica Laboratories

Analytical Approach for Tetraethyl Lead (TEL)

To maximize performance, various additives were blended into gasoline, including lead alkyls in the early 1920’s.  Tetraethyl Lead was a lead alkyl substance added to automotive gasoline as an antiknock agent to improve octane performance.  TEL was phased out of gasolines for road vehicles in the United States pre-1996 (pre-1992 in California).  The measurement of TEL can be associated with the time of release of the gasoline in the environment.

TestAmerica’s approach for TEL uses a high resolution gas chromatography /mass spectrometer [GC/MS] based on US EPA SW 846 8270 Selected Ion Monitoring [SIM] [modified].


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