icpms法测铜型化合物中微量重金属元素含量的研究-study on determination of trace heavy metals in copper compounds by icp - ms.docx
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icpms法测铜型化合物中微量重金属元素含量的研究-study on determination of trace heavy metals in copper compounds by icp - ms
AbstractUsing inductively coupled plasma mass spectrometry (icp-ms), type of copper compounds As, Pb, Cd and Hg In the trace heavy metal elements, such As testing, established a rapid, accurate, and the determination of inorganic copper compounds, the method of multiple metal elements content In Ge, In, Bi As the internal standard substance directly at the same time determination of arsenic, lead, cadmium, mercury, four elements with high accuracy and sensitivity.Arsenic (As) of the linear regression equation for y=436.6x+130.3, the correlation coefficient is 0.999 9, the recovery is 106.4%, RSD was 2.8%; Lead (Pb) of the linear regression equation is y=35064.0x+57979.0 correlation coefficient is 1.000 0, recovery is 108.2%, RSD was 0.7%; Cadmium (Cd) of linear regression equation is y=1493.3x+290.8 correlation coefficient is 1.000 0 , the recovery is 98.3%, RSD was 1.3%; Mercury linear regression equation is y=2330.7x+58.1 correlation coefficient is 0.999 9, the recovery rate is 106.8%, RSD was 6.3%.For copper compounds as a nutrient supplements, and its application in food and pharmaceutical industry provide an effective quality control method.Key words: ICP-MS;Copper compound;Trace heavy metal elements目录1 绪论 ……………………………………………‥‥…………………………………11.1 铜型微量元素概述………………………………………………………………11.1.1 人体与微量元素……………………………………………………………11.1.2 铜型化合物中的微量元素…………………………………………………31.1.3 常见重金属元素对人体的危害……………………………………………41.1.4 微量元素营养补充剂 …………………………………………‥‥……111.1.5 铜型微量元素测试的现状 …………………………………………‥‥171.2 ICP-MS 法在微量重金属元素测定中的应用 …………………………………201.2.1 电感耦合等离子体质谱法(ICP-MS)的基本原理和应用………………201.2.2 ICP-MS 法在微量重金属元素测定中的应用 ……………………………241.3 课题的来源及研究目的、内容和意义…………………………………………281.3.1 课题来源及研究目的 ……………………………………………………281.3.2 研究内容 …………………………………………………………………281.3.3 研究意义 …………………………………………………………………282 微量重金属元素含量测定实验部分…………………………………………………302.1 主要实验仪器与试剂 ……………………………………………………‥…302.2 仪器条件 ………………………………………………………………………302.3 实验方法 ………………………………………………………………………302.3.1 标准溶液的配制 …………………………………………………………302.3.2 样品处理 …………………………………………………………………312.3.3
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