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曹 煊, 李景喜, 俞晶晶, 于振花, 陈维余, 杨黄浩, 王小如. 电感耦合等离子体质谱法测定井间示踪剂中稀土元素[J]. 岩矿测试, 2009, 28(2): 91-96.
引用本文: 曹 煊, 李景喜, 俞晶晶, 于振花, 陈维余, 杨黄浩, 王小如. 电感耦合等离子体质谱法测定井间示踪剂中稀土元素[J]. 岩矿测试, 2009, 28(2): 91-96.
CAO Xuan, LI Jing-xi, YU Jing-jing, YU Zhen-hua, CHEN Wei-yu, YANG Huang-hao, WNG Xiao-ru. Determination of Rare Earth Elements in Inter-well Tracers by Inductively Coupled Plasma-Mass Spectrometry[J]. Rock and Mineral Analysis, 2009, 28(2): 91-96.
Citation: CAO Xuan, LI Jing-xi, YU Jing-jing, YU Zhen-hua, CHEN Wei-yu, YANG Huang-hao, WNG Xiao-ru. Determination of Rare Earth Elements in Inter-well Tracers by Inductively Coupled Plasma-Mass Spectrometry[J]. Rock and Mineral Analysis, 2009, 28(2): 91-96.

电感耦合等离子体质谱法测定井间示踪剂中稀土元素

Determination of Rare Earth Elements in Inter-well Tracers by Inductively Coupled Plasma-Mass Spectrometry

  • 摘要: 以甲醇为稀释剂,用电感耦合等离子体质谱法快速测定稀土示踪剂中17个稀土元素。研究表明,在优化的稀释剂甲醇浓度为2%(体积分数)、pH<2.47的条件下测定稀土元素,方法精密度(RSD)为1.23%~2.83%,日间6次测定的精密度为2.25%~4.76%,各稀土元素线性关系良好,检出限为2.0~9.0 ng/L;17个稀土元素的加标回收率为85%~108%,满足痕量元素分析要求。

     

    Abstract: A method for rapid determination of 17 rare earth elements in inter-well tracers was established with methanol as dilution reagent. The diluting solution was optimized as containing 2% methanol and pH<2.47. Under this optimized condition, the detection precision was 1.23%~2.83 %RSD and the inter-day precision in six days was 2.25%~4.76%RSD. The linear relationship for all rare earth elements was perfect with detection limits of 2.0~9.0 ng/L. The spike recoveries for 17 rare earth elements were 85%~108%, which satisfied with the demands for trace amount of rare earth element determination.

     

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