| 沉积物中痕量砷的测定 |
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| 引用本文： | 沈玉曼,林铁.沉积物中痕量砷的测定[J].贵州师范大学学报(自然科学版),1995,13(1):44-47. |
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| 作者姓名： | 沈玉曼 林铁 |
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| 作者单位： | 贵州省环境保护科学研究所 |
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| 摘 要： | 本文用ＨＮＯ３—Ｈ２ＳＯ４—ＨＣｌＯ４对样品进行消解后，采用硝酸银—乙醇—聚乙烯酸作为吸收剂，代替了二乙氨基二硫代甲酸银法中以有毒试剂氯仿作吸收剂，结合较易掌握的锌还原法，对江河中沉积物进行测定，具有简单、方便、无毒、灵敏度高等特点。
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| 关 键 词： | 沉积物，痕量砷，吸收剂 |
DETERMINATION OF TRACE AS IN SEDIMENT OF RIVER |
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| Shen yuman,Lin Tie.DETERMINATION OF TRACE AS IN SEDIMENT OF RIVER[J].Journal of Guizhou Normal University(Natural Sciences),1995,13(1):44-47. |
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| Authors: | Shen yuman Lin Tie |
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| Abstract: | Sedinment of some rivers of Guizhou Province which contain trace As are dicomposed by mixed HNO3-H2SO4-HClO4,acid and treated by the simple Zn-reduced method.The authors use AgNO3-AcOH-POly vinyl alcohol solutionas as absorbent instead of Silver diethyldithiocarbamate.using poisonous chloroform as solution.The absorbent is simpe,safe and more sensitive for trace As determination. |
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| Keywords: | Sediment Trau AS Absorbent |
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