电感耦合等离子体质谱法同时测定铜铅锌矿石中微量元素镓铟铊钨钼的干扰消除
Elimination of Interference in Simultaneous Determination of Trace Ga, In, Ta, W and Mo in Copper, Lead and Zinc Ores by Inductively Coupled Plasma-Mass Spectrometry
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摘要: 对电感耦合等离子体质谱法同时测定铜矿石、铅矿石和锌矿石中镓、铟、铊、钨和钼量时,基体效应和主量元素铜、铅、锌对测量的干扰情况及可能的消除方法进行试验,结果表明,溶液中共存小于200 μg/mL锌对上述微量元素的测量没有干扰;溶液中共存大于50 μg/mL的铜对镓、铟、铊、钨、钼的测量有负干扰,共存大于100 μg/mL铅对钨的测量有正干扰,对钼的测量有负干扰,采用钪、铼、镧混合内标或基体匹配可以消除这些干扰;溶液中共存大于20 μg/mL的铅对铊的测量有正干扰,选择203Tl为测量质量数,可使耐受铅的干扰浓度提高到50 μg/mL,铅对铊测量的干扰可以采用校正系数法或基体匹配进行校正或消除。Abstract: A method for correctioin and elimination of interference from matrix and major elements in simultaneously determination of Ga, In, Ta, W and Mo in copper, lead and zinc ores by inductively coupled plasma-mass spectrometry was developed. Interferences from matrix and major elements on the determination were systemically studied. The results showed that 1) when the concentration of Cu or Pb in the sample solution was <200 μg/mL, no interference from Zn on the determinatioin of the elements above was observed. 2) Cu with concentration of >50 μg/mL in the solution caused the negative interference on the determination of Ga, In, Ta, W and Mo. 3) Pb with concentration of >100 μg/mL produced the positive and negative interference on W and Mo, respectively, and the interference couled be eliminated by Sc-Re-La mixed internal standardization or matrix matching method. 4) Pb with concentration of >20 μg/mL caused the positive interference on the determination of Tl and the interference could be effectively relieved or eliminated by selecting 203Tl as measurement isotope and using matrix matching method or correction coefficient method.
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岩石矿物分析编写组. 岩石矿物分析(第一分册)[M]. 3版.北京:地质出版社,1991:409,422,434. 黄冬根,廖世军,章新泉,童迎东. ICP-MS 法测定钨精矿中杂质元素[J].冶金分析,2005,25(2):42-46. 姜玉梅,刘燕,熊朝东,周庆华,沈文馨.电感耦合等离子体质谱法测定钼精矿中的砷锡磷铜铅锌钙钨铋[J].现代测量与实验室管理,2007,15(1):30-33. 钟道国,潘建忠,刘鸿.纯钨制品中杂质的ICP-MS测定方法研究[J].中国钨业,2009,24(1):43-46. 聂西度,谢华林.Y(OH)3共沉淀分离电感耦合等离子体质谱法测定锌精矿中10种杂质元素[J].冶金分析,2006,26(3):40-43. 谢华林,谭文莉,李爱阳,李立波.锌精矿中杂质元素质谱分析的研究[J].金属矿山,2005(9):48-50. 范凡,温宏利,屈文俊,曹亚萍.王水溶样－等离子体质谱法同时测定地质样品中的砷锑铋银镉铟[J].岩矿测试,2009,28(4):333-336. 张勤,刘亚轩,吴键玲.电感耦合等离子体质谱法直接同时测定地球化学样品中镓铟铊元素[J].岩矿测试,2003,22(1):21-27. 李曼,李东雷,刘祥,林立. ICP-MS测定水系沉积物和土壤中的W、Mo等金属元素[J].质谱学报,2006,27(2):99－109. 章新泉,易永,姜玉梅,苏亚勤,童迎东,刘永林,李翔.电感耦合等离子体质谱法测定地质样品中多种元素[J].分析试验室,2005,24(8):58-61. 李国榕,王亚平,孙光方,董天姿,王海鹰.电感耦合等离子体质谱法测定地质样品中稀散元素铬镓铟碲铊[J]. 岩矿测试,2010,29(6):255-258. 贾维斯K E,格雷A L,霍克 R S. 电感耦合等离子体质谱手册[M].尹明,李冰,译.北京:原子能出版社,1997:101. 叶家瑜,江宝林.区域地球化学勘查样品分析方法[M].北京:地质出版社,2004:252. Hu J Y, Wang H Z. Determination of trace elements in super alloy by ICP-MS [J]. Mikrochimica Acta, 2001,137(3-4):149-155. Hu J Y, Wang H Z. Determination of trace elements in super alloy by ICP-MS [J]. Mikrochimica Acta, 2001,137(3-4):149-155.
胡净宇,王海舟. ICP-MS测定铜锌合金中痕量元素[J].冶金分析,2004,24(6):1-5.
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