微波消解法测试土壤重金属含量的方法学研究

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英文篇名：Study on the methodology of determination of heavy metal content in soil by microwave digestion 作者：黄晓琴 英文作者：HUANG Xiao-qin;Enshi Tujia & Miao Autonomous Prefecture Public Inspection and Testing Center; 关键词：土壤 ; 重金属 ; 微波消解 英文关键词：soil;;heavy metals;;microwave digestion 中文刊名：湖北农业科学 英文刊名：Hubei Agricultural Sciences 机构：湖北省恩施州公共检验检测中心; 出版日期：2019-09-10 出版单位：湖北农业科学 年：2019 期：17 语种：中文; 页：115-117+120 页数：4 CN：42-1255/S ISSN：0439-8114 分类号：X833

摘要

分别用盐酸-硝酸-氢氟酸-高氯酸全消解法和微波消解法消解土壤并测定土壤中砷、铅、镉、铬4种重金属元素,比较两种方法的检出限、准确度和回收率。结果表明,两种消解方法均具有良好的相关性、准确度和回收率,在统计学上无显著性差异。与全消解法相比,微波消解法具有操作简单、可批量检测、试剂消耗量小、安全性高等优点,值得推广应用。
        The Hydrochloric acid-nitric acid-hydrofluoric acid-perchloric acid Digestion Method and the Microwave Digestion Method were used respectively in soil digesting,four heavy metal elements(As, Pb, Cd, Cr) in soil were tested and compared by detection limit, accuracy and recoveries of the two methods.The results showed that the two digestion methods had good correlation, accuracy and recoveries, and no significant difference in statistics.Compared with Hydrochloric acid-nitric acid-hydrofluoric acid-perchloric acid Digestion Method, microwave digestion method was advanced in operation, batch,reagent consumption and safety, it is worth to popularize and apply.

引文

[1] GB 15618-1995，土壤环境质量标准[S].
    [2] GB 5009.268-2016，食品安全国家标准食品中多元素的测定[S].
    [3] GB/T 22105-2008，土壤质量总汞、总砷、总铅的测定原子荧光法[S].
    [4] GB/T 17139-1997，土壤质量镍的测定火焰原子吸收分光光度法[S].
    [5] GB/T 17141-1997，土壤质量铅、镉的测定石墨炉原子吸收分光光度法[S].
    [6] GB/T 17138-1997，土壤质量铜、锌的测定火焰原子吸收分光光度法[S].
    [7] NY/T 1121.12-2006，土壤检测第12部分：土壤总铬的测定[S].
    [8] GB/T 27417-2017，合格评定化学分析方法确认和验证指南[S].