Environmental & Analytical Toxicology

Hamid Reza Sobhi

Publications

• Research Article
  A Double Extraction Method for Determination of Diphenylamine in Fruits by GC/MS
  Author(s): Hamid Reza Sobhi and Ali EsrafiliHamid Reza Sobhi and Ali Esrafili
  
  A double extraction method comprising ultrasound assisted QuEChERS treatment combined with hollow-fiber liquid phase micro extraction was developed for the determination of diphenylamine in various fruit samples using gas chromatography coupled to a single-quadrupole mass spectrometer. Briefly, a known portion of fruit sample underwent an ultrasound assisted QuEChERS treatment. The organic phase resulting from QuEChERS treatment of a fruit sample was diluted 5-fold with pure water followed by a hollow fiber liquid-phase micro extraction procedure for further cleaning and preconcentration. In the late procedure, the analyte was extracted from the diluted sample into a thin layer of (dodecane+10% tri-n-octylphosphine oxide) sustained in the pores of a porous hollow fiber. The analyte was back extracted into acetonitrile located inside the lumen of the hollow fiber. Selected ion monitori.. Read More»
  DOI: 10.4172/2161-0525.1000393

  Abstract PDF