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Title: Establishment of a method for determination of arsenic species in seafood by LC-ICP-MS
Author: Zmozinski, A. V.
Llorente Mirandes, Antoni
López Sánchez, José Fermín
Da Silva, M. M.
Keywords: Arsènic
Cromatografia de líquids
Química dels aliments
Liquid chromatography
Food composition
Issue Date: 28-Oct-2014
Publisher: Elsevier B.V.
Abstract: An analytical method for determination of arsenic species (inorganic arsenic (iAs), methylarsonic acid (MA), dimethylarsinic acid (DMA), arsenobetaine (AB), trimethylarsine oxide (TMAO) and arsenocholine (AC)) in Brazilian and Spanish seafood samples is reported. This study was focused on extraction and quantification of inorganic arsenic (iAs), the most toxic form. Arsenic speciation was carried out via LC with both anionic and cationic exchange with ICP-MS detection (LC-ICP-MS). The detection limits (LODs), quantification limits (LOQs), precision and accuracy for arsenic species were established. The proposed method was evaluated using eight reference materials (RMs). Arsenobetaine was the main species found in all samples. The total and iAs concentration in 22 seafood samples and RMs ranged between 0.27-35.2 and 0.02-0.71 mg As kg-1, respectively. Recoveries ranging from 100% to 106% for iAs, based on spikes, were achieved. The proposed method provides reliable iAs data for future risk assessment analysis.
Note: Versió postprint del document publicat a:
It is part of: Food Chemistry, 2014, vol. 173, p. 1073-1082
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ISSN: 0308-8146
Appears in Collections:Articles publicats en revistes (Enginyeria Química i Química Analítica)

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