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Simultaneous determination of Se, trace elements and major elements in Se-rich rice by dynamic reaction cell inductively coupled plasma mass spectrometry (DRC-ICP-MS) after microwave digestion

文献类型： 外文期刊

作者： Wei, Yi Hua 1 ; Zhang, Jin Yan 1 ; Zhang, Da Wen 1 ; Luo, Lin Guang 1 ; Tu, Tian Hua 1 ;

作者机构： 1.Jiangxi Acad Agr Sci, Inst Qual & Safety & Stand Agr Prod Res, Nanchang 330200, Jiangxi, Peoples R China

关键词： Se-rich rice;DRC-ICP-MS;Se;Trace elements;Major elements;Correlation analysis

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

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年卷期：

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收录情况： SCI

摘要： A quick and accurate method was devised to determine Se, As, Ba, Ca, Cd, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Sr and Zn in Se-rich rice samples by microwave digestion and inductively coupled plasma-mass spectrometry (ICP-MS). Spectral interferences on Se were eliminated using methane as a reaction gas in the dynamic reaction cell (DRC). Rhodium was used as an internal standard to compensate for sample matrix effects. A rice-certified reference material (CRM) (GBW 10010) was used to verify the accuracy of the method. The method detection limits were 0.001-0.03 mg/kg, analyte recoveries were 85-108% and precisions (RSDs) ranged from 2.1% to 5.8%. Correlation analysis showed that the Se concentrations in the Se-rich rice samples correlated well with the Cu concentrations (r = 0.53, p ＜0.05).

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