微波消解-电感耦合等离子体质谱(ICP-MS)法测定稻谷中铬、镍、铜、砷、镉、铅的含量
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摘要
通过对测定元素质量数和内标元素的选择,并对存在的干扰进行校正,采用电感耦合等离子体质谱(ICP-MS)法测定大米中铬、镍、铜、砷、镉、铅的含量。各元素测定值的相对标准偏差RSD(n=6)在0.61%～2.2%,加标回收率在92.8%～108%。用来测定标准物质GBW 10011、GBW10022、GBW(E)100348、GBW(E)100361,各元素的测定值与标准值一致,能够满足大米中重金属元素的测定要求。
The content of chromium,nickel,copper,arsenic,cadmium and lead in rice was determined by inductively coupled plasma mass spectrometry(ICP-MS)by selecting the mass and internal standard elements of the measured elements and correcting the existing interference.The relative standard deviation RSD(n=6)of each element was between 0.61% and 2.2%,and the recovery was between 92.8% and 108%.Standard reference materials of GBW 10011,GBW 10022,GBW(E)100348 and GBW(E)100361 were analyzed by the above methods.The measured values of each element were in accordance with the standard values.The proposed method can meet the determination requirements of the heavy metal elements in rice.
The content of chromium,nickel,copper,arsenic,cadmium and lead in rice was determined by inductively coupled plasma mass spectrometry(ICP-MS)by selecting the mass and internal standard elements of the measured elements and correcting the existing interference.The relative standard deviation RSD(n=6)of each element was between 0.61% and 2.2%,and the recovery was between 92.8% and 108%.Standard reference materials of GBW 10011,GBW 10022,GBW(E)100348 and GBW(E)100361 were analyzed by the above methods.The measured values of each element were in accordance with the standard values.The proposed method can meet the determination requirements of the heavy metal elements in rice.
引文
[1]肖秀美,梁文元,梁康迳,等.水稻重金属污染及其控制技术的研究[J].亚热带农业研究(Subtropical Agriculture Research),2005,1(3):40-43.
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[5]杨红本,杨凡,胡赠彬,等.食品中无机元素分析方法研究[J].食品安全质量检测学报(Journal of Food and Quality),2017,8(10):3935-3943.
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[8]赵华,李本涛,冯典英.电感耦合等离子体质谱法痕量成分定值技术研究进展[J].化学分析计量(Chemical Analysis and Meterage),2007,16(5):77-80.
[9]王秋泉,唐南南,杨利民.电感耦合等离子体质谱分析[J].中国科学:化学(SCIENTIA SINICA Chimica)2014,44(5):664-671.
[10]冯先进,屈太原.电感耦合等离子质谱法(ICP-MS)最新应用进展[J].中国无机分析化学(Chinese Journal of Inorganic Analytical Chemistry),2011,1(1):46-52.
[11]马国军,赵立峰,楼梦菲,等.微波消解-电感耦合等离子体质谱(ICP-MS)法同时测定人发中10种微量元素[J].中国无机分析化学(Chinese Journal of Inorganic Analytical Chemistry),2016,6(2):64-68.
[12]李冰,胡静,赵墨田.碰撞/反应池ICP-MS性能及应用进展[J].质谱学报(Journal of Chinese Mass Spectrometry Society),2010,3(1):1-11.
[13]李先和,杨加桂,张晓天,等.电感耦合等离子体质谱法测定铜冶炼渣尾矿中银及铂族元素的含量[J].理化检验-化学分册(Physical Testing and Chemical Analysis Part B:Chemical Analysis),2018,54(1):69-72.
[14]谭秀慧,朱晓华,杨洪生,等.电感耦合等离子体质谱法测定水产品中铬、铜、锌、砷、镉、铅的含量[J].理化检验-化学分册(Physical Testing and Chemical Analysis Part B:Chemical Analysis),2018,54(1):82-85.
[15]中华人民共和国国家卫生健康委员会食品中多元素的测定GB 5009.268-2016[S].北京:中国标准出版社,2016.
[2]刘亚轩,李晓静,白金峰,等.植物样品中无机元素分析的样品前处理方法和测定技术[J].岩矿测试(Rock and Mineral Analysis),2013,32(5):681-693.
[3]段旭,韩张雄,白新悦,等.赶酸对微波消解-氢化物发生-原子荧光光谱法测定谷物中砷元素的影响[J].中国无机分析化学(Chinese Journal of Inorganic Analytical Chemistry),2018,8(6):5-8.
[4]吴永盛,徐金龙,庄姜云,等.微波消解-电感耦合等离子体质谱(ICP-MS)法同时测定土壤中8种重金属元素[J].中国无机分析化学(Chinese Journal of Inorganic Analytical Chemistry),2017,7(4):16-20.
[5]杨红本,杨凡,胡赠彬,等.食品中无机元素分析方法研究[J].食品安全质量检测学报(Journal of Food and Quality),2017,8(10):3935-3943.
[6]刁全平,侯冬岩,回瑞华,等.分光光度法测定稻米及副产品中矿物元素锗[J].中国无机分析化学(Chinese Journal of Inorganic Analytical Chemistry),2014,4(1):66-68.
[7]毛红,刘丽萍,张妮娜,等.应用ICP-MS与AAS测定食品中铅、镉、铜方法研究及比较[J].中国卫生检验杂志(Chinese Journal of Health Laboratory Technology),2007,17(11):1954-1955.
[8]赵华,李本涛,冯典英.电感耦合等离子体质谱法痕量成分定值技术研究进展[J].化学分析计量(Chemical Analysis and Meterage),2007,16(5):77-80.
[9]王秋泉,唐南南,杨利民.电感耦合等离子体质谱分析[J].中国科学:化学(SCIENTIA SINICA Chimica)2014,44(5):664-671.
[10]冯先进,屈太原.电感耦合等离子质谱法(ICP-MS)最新应用进展[J].中国无机分析化学(Chinese Journal of Inorganic Analytical Chemistry),2011,1(1):46-52.
[11]马国军,赵立峰,楼梦菲,等.微波消解-电感耦合等离子体质谱(ICP-MS)法同时测定人发中10种微量元素[J].中国无机分析化学(Chinese Journal of Inorganic Analytical Chemistry),2016,6(2):64-68.
[12]李冰,胡静,赵墨田.碰撞/反应池ICP-MS性能及应用进展[J].质谱学报(Journal of Chinese Mass Spectrometry Society),2010,3(1):1-11.
[13]李先和,杨加桂,张晓天,等.电感耦合等离子体质谱法测定铜冶炼渣尾矿中银及铂族元素的含量[J].理化检验-化学分册(Physical Testing and Chemical Analysis Part B:Chemical Analysis),2018,54(1):69-72.
[14]谭秀慧,朱晓华,杨洪生,等.电感耦合等离子体质谱法测定水产品中铬、铜、锌、砷、镉、铅的含量[J].理化检验-化学分册(Physical Testing and Chemical Analysis Part B:Chemical Analysis),2018,54(1):82-85.
[15]中华人民共和国国家卫生健康委员会食品中多元素的测定GB 5009.268-2016[S].北京:中国标准出版社,2016.