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| 石墨炉原子吸收法测定聚苯乙烯泡沫塑料中的汞 | |
| 引用本文： | 陈静仪 柯毅龙. 石墨炉原子吸收法测定聚苯乙烯泡沫塑料中的汞[J]. 分析化学, 1994, 22(6): 573-576 |
| 作者姓名： | 陈静仪 柯毅龙 |
| 作者单位： | 福建省测试技术研究所!福州350003 |
| 摘 要： | 本文提出的在聚苯乙烯泡沫塑料中测定汞的方法是将样品溶解在苯中，以Ｎａ２Ｓ２Ｏ３溶液反洗出汞，利用反洗液中Ｎａ２Ｓ２Ｏ３作基体改进剂，石墨炉原子吸收法测定汞，方法简便，快速，特征量为８０ｐｇ／０．００４４Ａ。本法分析样品与冷原子荧光法的结果一致，相对标准偏差≤８％，回收率９２％－１０２％。 |
| 关 键 词： | 聚苯乙烯 泡沫塑料 汞 原子吸收法 |
Determination of Mercury in Polyphenylethylene Aerated Plastic by Graphite Furnace Atomic Absorption Spectrophotometry |
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| Chen Jingyi,Ke Yilong,Lin Yuan,Chen Jianxia. Determination of Mercury in Polyphenylethylene Aerated Plastic by Graphite Furnace Atomic Absorption Spectrophotometry[J]. Chinese Journal of Analytical Chemistry, 1994, 22(6): 573-576 | |
| Authors: | Chen Jingyi Ke Yilong Lin Yuan Chen Jianxia |
| Abstract: | A method for determining mercury in polyphenylethylene aerated plastic is presented. Sample is solved with benzene, mercury is stripped out with Na_2S_2O_3 solution then utlizing Na_2S_2O_3 in stripping solution as matrix modifier, and mercury is determined by graphite furnace AAS. The method is convenient and rapid. The characteristic mass is 80 pg/0. 0044A. The analytical results of samples agree with those obtained by cold atomic fluorescence method. The RSD is less than 8%, and recovery is 92%-102%. |
| Keywords: | Mercury Polyphenylethylene aerated plastic Graphite furnace atomic absorption spectrophotometry |
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