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首页> 外文期刊>Natural science >Determination of Lanthanoids in Seawater by Inductively Coupled Plasma Mass Spectrometry after Pre-Concentration with a Chelating Resin Disk
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Determination of Lanthanoids in Seawater by Inductively Coupled Plasma Mass Spectrometry after Pre-Concentration with a Chelating Resin Disk

机译：螯合树脂盘预浓缩-电感耦合等离子体质谱法测定海水中的镧系元素

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摘要

A seawater sample was analyzed for its lanthanoids (Ln’s) contents by inductively coupled plasma mass spectrometry (ICP-MS). The analytical procedure included the pre-concentration and partial purification of Ln’s with a chelating resin disk and the employment of the combination of the internal standard and standard addition methods in ICP-MS, which seemed indispensable for the determination of low-level Ln’s by ICP-MS. The recoveries of the Ln’s with the disk were mostly 70% or better with the concentration factor of 200. The measured concentrations of Ln’s were on the order of ng?dm–3 or lower and reasonable except that of neodymium and samarium.
机译：通过电感耦合等离子体质谱法（ICP-MS）分析了海水样品中的镧系元素（Ln's）含量。分析程序包括使用螯合树脂圆盘对Ln's进行预浓缩和部分纯化，以及在ICP-MS中采用内标和标准添加方法的组合，这对于ICP测定低含量Ln's似乎是必不可少的-多发性硬化症。圆盘法测定的Ln的回收率多数为70％或更高（浓度因子为200）。测得的Ln的浓度约为ng？dm–3或更低，除钕和sa外，其余均合理。

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