微波消解-电感耦合等离子体质谱法测定植物样中锗
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摘要
采用微波消解技术对水稻果实、水稻果壳、水稻茎叶和水稻根等植物样品进行前处理,电感耦合等离子体质谱法测定样品中的锗。结果表明:国家一级标准物质中锗的测定值与标准值相一致,相对误差与相对标准偏差均小于等于10%;当样品中锗的含量在0.00××mg·kg~(-1)～0.××mg·kg~(-1),加标回收率为90.0%～103.8%。本方法适合各种植物样中不同含量锗的测定,测定结果准确可靠,可应用于日常大批量植物样品的分析测试。
Plant samples of rice、rice husk、rice stems and leaves and rice roots were decomposed by microwave digestion. The contents of Ge in the sample solutions were determined by ICP-MS. As shown by the experimental results,the measured values about Ge of national standard reference materials were conformed well to the certified values,and the relative errors and the relative standard deviations were less than or equal to 10 %. When the contents of Ge in the samples were between 0.00×× mg·kg~(-1)～0.×× mg·kg~(-1),the recovery ratios were 90.0 %～103.8 %. This method was suitable for the determination of different content of Ge in various plant samples, and the determination results were accurate and reliable.
Plant samples of rice、rice husk、rice stems and leaves and rice roots were decomposed by microwave digestion. The contents of Ge in the sample solutions were determined by ICP-MS. As shown by the experimental results,the measured values about Ge of national standard reference materials were conformed well to the certified values,and the relative errors and the relative standard deviations were less than or equal to 10 %. When the contents of Ge in the samples were between 0.00×× mg·kg~(-1)～0.×× mg·kg~(-1),the recovery ratios were 90.0 %～103.8 %. This method was suitable for the determination of different content of Ge in various plant samples, and the determination results were accurate and reliable.
引文
[1]陈海杰,于兆水,白金峰,等.干法灰化-原子荧光光谱法测定植物样中痕量锗[J].光谱学与光谱分析,2015,35(4):1049-1051.
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[3]黄晓纯,刘昌弘,张军,等.ICP-MS测定蔬菜样品中重金属元素的两种微波消解前处理方法[J].岩矿测试,2013,32(3):415-415.
[4]和丽忠,杜丽娟,严红梅,等.微波消解-电感耦合等离子体-质谱法测定黑木耳中铅、福、砷、铜、锌和铬[J].光谱实验室,2012,29(1):435-438.
[5]刘彦明,陈志勇,韩金土,等.微波消解/电感耦合等离子体质谱测定鹿骨粉中微量元素[J].光谱学与光谱分析,2006,26(5):947-949.
[6]周建,朱利亚,赵青.锗分析方法的研究进展[J].理化检验-化学分册,2012,48:122-128.
[2]梁轩,刘福柱.锗—人体重要的保健微量元素[J].食品科技,2000(6):65-66.
[3]黄晓纯,刘昌弘,张军,等.ICP-MS测定蔬菜样品中重金属元素的两种微波消解前处理方法[J].岩矿测试,2013,32(3):415-415.
[4]和丽忠,杜丽娟,严红梅,等.微波消解-电感耦合等离子体-质谱法测定黑木耳中铅、福、砷、铜、锌和铬[J].光谱实验室,2012,29(1):435-438.
[5]刘彦明,陈志勇,韩金土,等.微波消解/电感耦合等离子体质谱测定鹿骨粉中微量元素[J].光谱学与光谱分析,2006,26(5):947-949.
[6]周建,朱利亚,赵青.锗分析方法的研究进展[J].理化检验-化学分册,2012,48:122-128.