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Electrothermal atomic-absorption determination of Ti in polypropylene in the presence of Al and Mg

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Abstract.

A method is proposed for the determination of low concentrations of Ti (< 2 µg g–1) in polypropylene in presence of Al and Mg by ETAAS after elimination of the polymer matrix and Si. The optimum instrumental conditions for the determination of Ti are presented. Interferences of Al and Mg in the determination of Ti and some necessary precautions providing better accuracy and precision for the determination of Ti by ETAAS are discussed. A simple procedure for sample preparation is proposed. The detection limit of the method is 12 ng g–1. The method developed has been applied to real polypropylene samples.

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  1. Refining and Petrochemistry Institute, Lukoil Neftochim Bourgas AD, 8104 Bourgas, Bulgaria, Bulgaria

    Irina G. Kalaydjieva

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  1. Irina G. Kalaydjieva
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Kalaydjieva, I.G. Electrothermal atomic-absorption determination of Ti in polypropylene in the presence of Al and Mg. Fresenius J Anal Chem 371, 394–395 (2001). https://doi.org/10.1007/s002160101008

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  • DOI: https://doi.org/10.1007/s002160101008

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