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  • Title: An ion-exchange method for speciation of antimony by flow injection electrothermal atomic absorption spectrometry.
    Author: Sánchez Rojas F, Bosch Ojeda C, Cano Pavón JM.
    Journal: Talanta; 2007 Feb 15; 71(2):918-22. PubMed ID: 19071395.
    Abstract:
    In this work, a simple preconcentration system, achieved by replacing the sample tip of the autosampler arm by a micro-column packed with Amberlite IRA-910 or silica gel chelating resin functionalised with 1,5-bis(di-2-pyridyl)methylene tbiocarbohydrazide (DPTH-gel), is developed for the determination of Sb(V) and total antimony, respectively. Different factors including pH of sample solution, ionic strength, concentration and volume of eluent, sample flow rate, sample loading time and matrix effects for preconcentration were investigated. The method has been applied to the determination of antimony species in different samples.
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