ANALYSE ET DETERMINATION DES HALOGÉNURES ET DES OXYHALOGENURES PAR CHROMATOGRAPHIE D’ECHANGE D’IONS AVEC DETECTION UV-INDIRECTE
BOULAHJAR R. 12, HADDAD M. EL 23, MAMOUNI R. 24, FECHTALI T. 1, EL ANTRI S.1, AKSSIRA MOHAMED 2, LAZAR S. 1
1 LABORATOIRE DE BIOCHIMIE, ENVIRONNEMENT & AGROALIMENTAIRE, UNIVERSITÉ HASSAN II-MOHAMMÉDIA, BP 146, 20800, MOHAMMÉDIA, MOROCCO; 2 LABORATOIRE DE CHIMIE BIOORGANIQUE & ANALYTIQUE, UNIVERSITÉ HASSAN II-MOHAMMÉDIA, BP 146, 20800, MOHAMMÉDIA, MOROCC
Abstract
Analysis and determination of a mixture of halides (F-, Cl-, Br- and I-) and oxyhalides (ClO3- and BrO3-) have been realized by ion exchange chromatography (IEC) with UV-indirect detection mode (IEC-IPD). We have used a stationary phase Metrosep Anion Dual1 Metrohm (150 x 3 mm D.I.), polymeric phase constituted by hydroxyethyle methyacrylate with mobile phase formed by aqueous solution of ortho-phtalic acid as ion developer. In this case, profile separation was presented by effects study; concentration of ortho-phtalique and mobile phase pH. We have also realized the separation of both couples (BrO3-/Br-) and (ClO3-/Cl-). Chromatographic system developed is stable, no perturbation of base line and no interferences of analyzed anions have been occurred.