Abstract
The rapid and accurate determination of lead in gasolines by atomic absorption spectroscopy is possible with a premix air-acetylene burner. Tetramethyllcad, tetraethyllead and mixed alkyllead compounds can be determined by calibration of the method against a single standard alkyllead compound, if 3 mg of iodine is added to the 1-ml gasoline sample which is then diluted to 50 ml with MIBK before aspiration. The method is remarkably free from interference by other trace elements present, and is suitable for determination of 0.16–0.8 g Pb 1 −1 in gasoline.
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