高压密闭罐溶样-氢化物原子荧光法测定环境样品中的砷
Determination of Total Arsenic in Environmental Samples by Hydride Generation-Atomic Fluorescence Spectrometry with PTFE Bomb
查看参考文献18篇
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文摘
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使用高压密闭罐溶样方式,比较了利用浓HNO3,王水和HNO3+HF消解土壤,沉积物和植物样品,后用氢化物发生-原子荧光光谱法(HG-AFS)测定样品中砷的情况.使用优选的浓HNO3溶样法对土壤标准参考物质GBW(E)070009,GBW07404(GSS-4),GBW07405(GSS-5),GBW07407(GSS-7),GBW07408(GSS-8),GS-BZ50011-88(ESS-1)和植物标准参考物质GBW07604(GSV-3),GBW07602(GSV-1)进行了分析,砷的测定结果与推荐值基本一致.加标回收实验的回收率在99.9%~105.6%.利用该法对实际样品进行了测定,并与土壤总砷国标法(GB/T22105.2-2008)的分析结果进行了比较,平行样的重现性好,表明砷的分析结果准确可靠 |
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其他语种文摘
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Standard reference materials were digested with concentrated HNO3,HNO3 + HF and aqua regia in screw top PTFE-lined stainless steel bombs, and total arsenic was determined by hydride-generation atomic fluorescence spectrometry (HG-AFS) .The results indicate concentrated HNO3 is the best digestion regent. Several standard reference materials of soil GBW (E) 070009,GBW07404 (GSS-4 ),GBW07405 (GSS-5 ),GBW07407 (GSS-7 ),GBW07408(GSS-8),GSBZ50011-88(ESS-1) and plant [GBW07604(GSV-3),GBW07602(GSV-1) ]were studied by using optimized digestion method. The results were consistent with the referenced values, and the recovery of arsenic in spiked certified reference materials ranged from 99.9% ~ 105.6%. Arsenic in natural duplicate environmental samples was also determined, whose results coincided with those by GB/T22105.2-2008 |
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来源
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矿物学报
,2010,30(3):398-402 【核心库】
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关键词
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砷
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测试方法
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氢化物-原子荧光法
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环境样品
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地址
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中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵州, 贵阳, 550002
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-4734 |
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学科
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化学;地质学;环境科学基础理论 |
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基金
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国家自然科学基金创新研究群体项目
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中国科学院知识创新工程重要方向项目
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贵州省项目
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中国科学院贵阳地球化学研究所矿床地球化学中国科学院重点实验室基金
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文献收藏号
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CSCD:4022943
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