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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 本文二维码信息
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电感耦合等离子体质谱法测定土壤中的总碘
Determination of Iodine in Soil by Inductively Coupled Plasma Mass Spectrometry
投稿时间:2017-02-09  修订日期:2017-03-23
DOI:10.13758/j.cnki.tr.2018.01.030
中文关键词:  总碘  土壤  碱液热浸提  电感耦合等离子体质谱法
Key Words:Iodine  Soils  Hot-alkali extraction  ICP-MS
基金项目:福建省产品质量检验研究院科技项目(KY201726A)资助。
作者单位E-mail
赖阳巍 国家加工食品质量监督检验中心(福州)福建省产品质量检验研究院 465889247@qq.com 
摘要点击次数: 40
全文下载次数: 25
中文摘要:
      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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