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- W788607577 abstract "Abstract In some environmental and occupational setting, determination of total chromium is inadequate for a complete toxicological evaluation and risk assessment because the toxicity and bioavailability of chromium depend upon the form or species. In this study, trivalent and hexavalent chromium compounds were determined by high performance liquid chromatography with inductively coupled plasma mass spectrometry (HPLC–ICP-MS) equipped with dynamic reaction cells (DRCs) and a reversed-phase C8 column. All the instruments and devices were metal free, thus avoiding any interference caused by leaching from metallic components. The mobile phase (EDTA 2 (Na) 5 mM pH 7, 40 °C) directly forms a complex with the Cr(III) in the pre-heated, allowing a single chromatographic method to be used to separate the Cr(III) EDTA complex and the Cr(VI). This analytical method was applied in several samples of mineral and tap water with the aim to determine a different ratio of Cr(III) and Cr(VI). In tap waters Cr(VI), ranged from 10.88 to 0.1 μg/L while Cr(III) ranged from 0.33 to 0.1 μg/L. The highest levels of Cr(VI) were measured in Brescia, a highly industrialized province in northern Italy in which high levels of Cr(VI) have been a public health concern. In commercial mineral waters, the range of Cr(III) and Cr(VI) were 0.11–0.80 μg/L and 0.25–3.4 μg/L, respectively. The method applied in this study is a rapid, sensitive (LOD 0.1 μg/L) and specific technique for determination of chromium species in water." @default.
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- W788607577 date "2015-08-01" @default.
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- W788607577 title "Application of a metal free high performance liquid chromatography with inductively coupled plasma mass spectrometry (HPLC–ICP-MS) for the determination of chromium species in drinking and tap water" @default.
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- W788607577 doi "https://doi.org/10.1016/j.ijms.2015.06.015" @default.
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