Preparation of an immunoaffinity column and its application in sample cleanup for methandrostenolone residues detection

Preparation of nano-sized Pb2+ imprinted

Preparation of nano-sized Pb2+ imprinted polymer and its application as the chemical interface of an electrochemical sensor for toxic lead determination in different real samples

✍ Taher Alizadeh; Somaye Amjadi 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 844 KB

Performance evaluation of an aqueous—org

Performance evaluation of an aqueous—organic phase separator for post-column reactions in high-performance liquid chromatography, and its application to the enhanced detection of some basic drugs of abuse

✍ I.M. Roy; T.M. Jefferies 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 332 KB

A phase separator is described that is suitable for post-column HPLC applications. It operates with commonly used HPLC eluents and immiscible organic solvents as long as the two phases remain immiscible. It is compatible with gradient elution systems. Separation efficiency is routinely better than 0

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