电感耦合等离子体质谱法比较不同制粉方式对玉米中重金属含量的影响
电感耦合等离子体质谱法比较不同制粉方式对玉米中重金属含量的影响
目的利用微波消解-电感耦合等离子体质谱法比较不同制粉方式对玉米中As、Pb、Hg、Cd、Cr、Cu、Ni 7种重金属元素含量的影响。方法以玛瑙研钵处理样品为对照, 用实验室常用的3种金属前处理设备福斯旋风磨、破壁料理机、万能粉碎机对玉米进行粉碎, 微波消解样品, 用电感耦合等离子体质谱法测定7种重金属元素含量。结果在0.1~50.0 μg/mL线性范围内, 方法线性关系良好(r2>0.9990)。3种前处理方式对玉米的重金属Hg和Cd含量检测无影响, 均会造成Cr含量的增加, 万能粉碎机会造成金属Ni含量的显著增加(P<0.05)。结论3种前处理方式中破壁料理机对于对玉米的重金属含量检测产生的影响最小。
ObjectiveTo compare the effects of different milling methods on the contents of heavy metal including As, Pb, Hg, Cd, Cr, Cu and Ni in maize samples by microwave digestion-inductively coupled plasma mass spectrometry(ICP-MS). MethodsTaking the samples treated with agate mortar as the control, the maize was crushed by 3 kinds of commonly used metal pretreatment equipment including flowserve cyclone mill, wall breaking blender and universal grinder. Then, the samples were digested by microwave, and the contents of 7 heavy metals were determined by inductively coupled plasma mass spectrometry. ResultsIn the linear range of 0.1-50.0 μg/mL, the method has a good linear relationship (r2>0.9990). Three pretreatment methods had no effect on the detection of heavy metal Hg and Cd content in corn, and all of them resulted in the increase of Cr content. The universal crushing machine results in a significant increase in the Ni content (P<0.05). ConclusionAmong the 3 pretreatment methods, the effect of wall breaking blender on the detection of heavy metal content in corn was the least.
标题：电感耦合等离子体质谱法比较不同制粉方式对玉米中重金属含量的影响
英文标题：Comparison of the effects of different milling methods on the content of heavy metals in maize by inductively coupled plasma massspectrometry method
作者：
潘少香 中华全国供销合作总社济南果品研究院
孟晓萌 中华全国供销合作总社济南果品研究院
谭梦男 中华全国供销合作总社济南果品研究院
闫新焕 中华全国供销合作总社济南果品研究院
刘雪梅 中华全国供销合作总社济南果品研究院
曹宁 中华全国供销合作总社济南果品研究院
李志成 中华全国供销合作总社济南果品研究院
郑晓冬 中华全国供销合作总社济南果品研究院
中文关键词:电感耦合等离子体质谱法,制粉方式,玉米,重金属元素,
英文关键词:inductively coupled plasma mass spectrometry,pulverizing way,maize,heavy metal,
发表日期：2020-02-21
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