Rapid determination of the isomeric truxillines in illicit cocaine via capillary gas chromatography/flame ionization detection and their use and implication in the determination of cocaine origin and trafficking routes

Screening method for the determination o

Screening method for the determination of 28 volatile organic compounds in indoor and outdoor air at environmental concentrations using dual-column capillary gas chromatography with tandem electron-capture-flame ionization detection

✍ J. Begerow; E. Jermann; T. Keles; T. Koch; L. Dunemann 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 637 KB

Use of a capillary tube for collecting a

Use of a capillary tube for collecting an extraction solvent lighter than water after dispersive liquid–liquid microextraction and its application in the determination of parabens in different samples by gas chromatography—Flame ionization detection

✍ M.A. Farajzadeh; Dj. Djozan; R. Fazeli Bakhtiyari 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 886 KB

Use of a capillary tube for collecting a

Use of a capillary tube for collecting an extraction solvent lighter than water after dispersive liquid–liquid microextraction and its application in the determination of parabens in different samples by gas chromatography—Flame ionization detection

✍ M.A. Farajzadeh; Dj. Djozan; R. Fazeli Bakhtiyari 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 886 KB

In this study a new dispersive liquid–liquid microextraction (DLLME) method is presented on the basis of a safe organic solvent, octanol, which is lighter than water. The proposed method is used for the extraction and pre-concentration of some preservatives including methyl paraben (Mep), ethyl para