Simultaneous derivatization and microextraction of parabens in different matrices followed by GC-FID
作者: Mir Ali FarajzadehElnaz Marzi KhosrowshahiLeila Khoshmaram
作者单位: 1University of Tabriz
2Shahid Madani University
刊名: Journal of the Iranian Chemical Society, 2015, Vol.12 (6), pp.1061-1069
来源数据库: Springer Nature Journal
DOI: 10.1007/s13738-014-0566-8
关键词: Air-assisted liquid–liquid microextractionDerivatizationGas chromatographyParabensPreservatives
原始语种摘要: Abstract(#br)In this study, a simple, rapid, and an economical method has been proposed for the extraction, preconcentration, and determination of parabens (methyl-, ethyl-, and propylparaben) in different samples based on derivatization by acetic anhydride and preconcentration using air-assisted liquid–liquid microextraction in a single step. In this method, 1,1,2,2-tetrachloroethane (extraction solvent) containing μL-level of acetic anhydride (derivatization agent) is injected into aqueous sample containing parabens and picoline (catalyst). The mixture of aqueous and organic phases is withdrawn into a glass syringe and then injected into the test tube for several times till a turbid solution is obtained. After centrifuging, 1 μL of the sedimented phase is injected into gas...
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影响因子:1.467 (2012)

  • parabens 对羟基苯甲酸脂类
  • derivatization 衍生作用
  • matrices 基体
  • different 不相同的
  • FID Federation of International Documentation