电感耦合等离子体质谱法测定土壤中的总碘
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X53

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福建省产品质量检验研究院科技项目(KY201726A)资助。


Determination of Iodine in Soil by Inductively Coupled Plasma Mass Spectrometry
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    摘要:

    采用碱液热浸提法处理土壤样品,通过电感耦合等离子体质谱法(ICP-MS)测定土壤中碘元素的总量。对前处理的3大参数——碱度、温度和时间进行试验摸索,得出适用于土壤的最佳浸提条件。测定结果显示,该方法的线性范围为0 ~ 500 μg/L,线性相关系数0.999 8,方法检出限0.12 μg/g,加标回收率为91.0% ~ 104%,RSD均小于5%。综上,该法是一种能够快速、灵敏、准确地测定土壤样品中碘元素的先进方法。

    Abstract:

    This study is to develop an inductively coupled plasma mass spectrometry (ICP-MS) method for the determination of iodine in soils by hot-alkali extraction. The optimal extraction conditions were obtained by exploring the three parameters of pretreatment process-alkalinity, temperature and time. The results showed that the linear range of the established method was between 0 and 500 μg/L with the linear correlation coefficient of 0.9998, the detection limit was 0.12 μg/g, the recovery rates ranged from 91.0% to 104%, RSD were all lower than 5%. In conclusion, the method is rapid, sensitive and accurate in determining iodine in soils.

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赖阳巍.电感耦合等离子体质谱法测定土壤中的总碘[J].土壤,2018,50(1):221-224. LAI Yangwei. Determination of Iodine in Soil by Inductively Coupled Plasma Mass Spectrometry[J]. Soils,2018,50(1):221-224

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历史
  • 收稿日期:2017-02-09
  • 最后修改日期:2017-03-23
  • 录用日期:2017-03-27
  • 在线发布日期: 2018-02-06
  • 出版日期: 2018-02-25