Determination of methylcyclopentadienyl-manganese tricarbonyl in gasoline and water via ionic-liquid headspace single drop microextraction and electrothermal atomic absorption spectrometry

• Published in: Mikrochimica acta (1966) Vol. 174; no. 3-4; pp. 413 - 419
• Main Authors: Rahmani, Mashaallah, Kaykhaii, Massoud
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.09.2011; Springer
• Subjects: Analytical Chemistry; Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Exact sciences and technology; Gasoline; Microengineering; Nanochemistry; Nanotechnology; Original Paper; Spectrometric and optical methods; Spectrum analysis; Water; Methylcyclopentadienyl-manganese tricarbonyl (MMT); Electrothermal atomic absorption spectrometry (ET-AAS); Headspace single drop microextraction (HS-SDME); Gasoline analysis; Ionic Liquid (IL); Water; Sample; Microanalysis; Time; Method; Chemical enrichment; Ionic liquid; Sample preparation; Ionic strength; Volume; Gasoline; Detection limit; Microextraction; Thermoelectric atomization; Headspace; Standard deviation; Extraction; Manganese; Atomic absorption spectrometry
• ISSN: 0026-3672; 1436-5073
• DOI: 10.1007/s00604-011-0648-6

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 μL 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 (3σ) 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. Figure A new method has been developed for the determination of methylcyclopentadienyl-manganese tricarbonyl in water and gasoline using ionic-liquid headspace single drop microextraction prior to electrothermal atomic absorption spectrometry