Determination of Phenolic Antioxidants in Spilled Aviation Fuels by Gas Chromatography-Mass Spectrometry |
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Authors: | Ho-Sang Shin Hye-Sil Ahn Dong-Gyun Jung |
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Affiliation: | (1) RRC/NMR Abuse Drug Research Center, Kongju National University, Kongju, Korea;(2) Abuse Drug Research Center, Kongju National University, Kongju, Korea;(3) Department of Environmental Science, Kongju National University, Kongju, 314-701, Korea |
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Abstract: | Summary A gas chromatography-mass spectrometric assay method was developed for the simultaneous determination of 2,6-di-tert-butylphenol (DTBP) and 2,4-dimethyl-6-tert-butylphenol (DMTBP) in aviation fuel. Extraction and purification were achieved with a solid phase extraction procedure using silica gel. Elution was performed with 30 mL of methylene chloride: pentane (2:3) following washing with 10 mL of n-pentane. The extract was concentrated to about 100 L and analyzed by GC-MS (SIM). The peaks had good chromatographic properties by using a semi-polar column (Innowax) and the extraction of these compounds from samples gave recoveries of about 87% for DTBP and about 75% for DMTBP with small variations. Method detection limits were 5.0 ng mL–1 for DBMP and 7.0 ng mL–1 for DMTBP. The method may be useful for spilled fuel type differentiation between kerosene and JP-8. |
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Keywords: | Gas chromatography-mass spectrometry Fuel-type differentiation Antioxidant JP-8 |
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