Comparison of the Concentrations of Metal Elements and Isotopes of Lead Found in Rice and Rice Bran

文献类型： 外文期刊

第一作者： Dai, Shouhui

作者： Dai, Shouhui;Yang, Hui;Yang, Lan;Wang, Fuhua;Du, Ruiying;Wen, Dian;Dai, Shouhui;Yang, Hui;Yang, Lan;Wang, Fuhua;Du, Ruiying;Wen, Dian;Dai, Shouhui

作者机构：

关键词： Toxicology;Agriculture

期刊名称：JOURNAL OF FOOD PROTECTION （ 影响因子：2.077； 五年影响因子：2.224 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Very few studies have investigated the difference in the distribution of metal elements between rice and rice bran samples. In this study, the concentrations of 27 metal elements (Li, Be, Na, Mg, Al, K, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Rb, Sr, Ag, Cd, Cs, Ba, Ti, Pb, and U) in 56 polished rice and their corresponding bran samples were determined. A significant difference in concentrations of all elements except Ag and Cd was found between rice and bran (P < 0.05), with bran/rice ratios of 1.21 to 36.3. High concentrations of metal elements, especially that of the heavy metal Cr, in bran samples present a potential safety issue for bran products, such as food and feed containing bran. Pb isotope (Pb-204, Pb-206, Pb-207, and Pb-208) ratios also were determined. The Pb-206/Pb-207 and Pb-208/Pb-207 ratios in bran were generally higher than those in rice (P < 0.0001), and rice and bran samples were distinctly different from each other, indicating that Pb isotope composition is an effective for discriminating between bran and rice samples

分类号： TS205

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