期刊
MICROCHIMICA ACTA
卷 174, 期 3-4, 页码 413-419出版社
SPRINGER WIEN
DOI: 10.1007/s00604-011-0648-6
关键词
Ionic Liquid (IL); Headspace single drop; microextraction (HS-SDME); Methylcyclopentadienylmanganese; tricarbonyl (MMT); Electrothermal atomic; absorption spectrometry (ET-AAS); Gasoline analysis
We report on a rapid and effective method for the determination of methylcyclopentadienyl-manganese tricarbonyl (MMT) in water and gasoline samples. It is based on single drop microextraction using a 2.5 mu L drop of the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate. The influence of ionic liquid, volume of the micro-drop, extraction time, ionic strength and volume of sample were investigated. MMT was then quantified by electrothermal atomic absorption spectrometry. The method has a wide linear range (R(2) = 0.991), a detection limit (3 sigma) of 10.0 ng L(-1), a standard deviation of 4.8% (for n=5), an enrichment factor of 124, and gives relative recoveries of 81.2-101.0%. It was successfully applied to the determination of MMT in water and gasoline samples.
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