| 用热解石墨管和锆＋酒石酸改进剂测定环境样品中锡 |
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| 引用本文： | 马怡载 王晓慧. 用热解石墨管和锆＋酒石酸改进剂测定环境样品中锡[J]. 环境化学, 1998, 17(4): 393-398 |
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| 作者姓名： | 马怡载 王晓慧 |
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| 作者单位： | 国家环境分析测试中心!北京100029 |
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| 基金项目： | 国家环境保护局科技发展计划项目 |
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| 摘 要： | 本文提出了一种新的混合改进剂（锆＋酒石酸），能有效消除高氯酸、硝酸以及各种基体的干扰，比较了各原子化温度时理论和实验特征量，使解热石墨管可可能用于石墨炉原子吸收法测定各种环境样品中的锡，准确度和精度优于８％。
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| 关 键 词： | 锡 酒石酸 热解石墨管 锆 环境样品 环境监测 |
THE DETERMINATION OF ENVIRONMENTAL TIN USING PYROLYTIC COATING GRAPHITE TUBE AND ZIRCORIUM+TARTARIC ACID AS A MIXED CHEMICAL MODIFIER |
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| Ma Yizai Wang Xiaohui. THE DETERMINATION OF ENVIRONMENTAL TIN USING PYROLYTIC COATING GRAPHITE TUBE AND ZIRCORIUM+TARTARIC ACID AS A MIXED CHEMICAL MODIFIER[J]. Environmental Chemistry, 1998, 17(4): 393-398 |
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| Authors: | Ma Yizai Wang Xiaohui |
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| Abstract: | A new mixed chemical modifier (Zr + tartaric acid) and pyrolytic coating graphite tube were selected for the determination of tin in environmental samples. The new modifier was used for elimination of matrix effect from HClO4, HNO3 and other matrices. A comparison of experimental and calculated characteristic mass was made. This paper shows that the modern graphite furnace technique provides the possibility of Sn determination in a variety of complex matrices within 8% accuracy. |
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| Keywords: | tin chemical modifier (Zr+tartaric acid) pyrolytic coating graphite tube graphite furnace atomic absorption spectrometry. |
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