microwave-assisted synthesis of a new chelating resin containing 2-aminothiophenyl S-acetic acid and its application tot he determination of lead

摘要

Chloromethyl polystyrene has been functionalised with 2-aminothiophenyl S-acetic acid using microwave assisted reflux. The resulting chelating resin has been characterised by elemental analyses, infrared spectra, thermogravimetric analysis, Hydrogen ion capacity and metal sorption capacity. It has been used for the preconcentration and separation of lead prior to Its determination by flame atomic absorption spectrometry. The optimum conditions for both synthesis of the resin as well as The digestion of the road dust samples by microwave assisted treatment have been evaluated.