alexa Simultaneous Determination of As, Cu, Cr, Se, Sn, Cd, Sb and Pb Levels in Infant Formulas by ICP-MS after Microwave-Assisted Digestion: Method Validation | Abstract
ISSN: 2161-0525

Journal of Environmental & Analytical Toxicology
Open Access

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Research Article

Simultaneous Determination of As, Cu, Cr, Se, Sn, Cd, Sb and Pb Levels in Infant Formulas by ICP-MS after Microwave-Assisted Digestion: Method Validation

Gianluigi Maria Lo Dico1, Gaetano Cammilleri1*, Andrea Macaluso1, Antonio Vella1, Giuseppe Giangrosso1, Mirella Vazzana2 and Vincenzo Ferrantelli1
1Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, Via Gino Marinuzzi 3, Palermo, Italy
2Dipartimento STEBICEF, Università degli studi di Palermo, Via Archirafi 25, Palermo, Italy
Corresponding Author : Gaetano Cammilleri
Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”
Via Gino Marinuzzi 3, Palermo, Italy
Tel: 390916565258
E-mail: [email protected]
Received: October 22, 2015; Accepted: October 30, 2015; Published: November 03, 2015
Citation: GM Lo Dico, Cammilleri G, Macaluso A, Vella A, Giangrosso G, et al. (2015) Simultaneous Determination of As, Cu, Cr, Se, Sn, Cd, Sb and Pb Levels in Infant Formulas by ICP-MS after Microwave-Assisted Digestion: Method Validation. J Environ Anal Toxicol 5:328. doi:10.4172/2161-0525.1000328
Copyright: © 2015 GM Lo Dico, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

The growing importance of chemical measurements has greatly pressured the development of measures to improve the quality of analytical results and to guarantee quality to the end users. In this work an ICP-MS method was validated for the simultaneous determination of essential trace elements (Chromium, Selenium and Copper) and non-essential toxic elements (Cadmium, Antimony, Arsenic, Tin and Lead) in infant formula available in Sicily. The extraction of samples was performed by a microwave assisted digestion with HNO3 to stabilize these elements. Several parameters have been taken into account and evaluated for the validation of method: selectivity/specificity, trueness by recovery, repeatability and within-laboratory reproducibility at three levels of concentration, instrumental detection limit, limit of determination (LOD), limit of quantification (LOQ), range of linearity, standard measurement uncertainty. Results indicate that this method could be used in the laboratory for the routine determination of these 8 essential and non-essential elements in infant formulas with acceptable analytical performance.

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