| 锡石墨炉原子化机理研究 |
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| 引用本文： | 何金兰,莫少波,姚松年,杨业智,雍援,李洪仪. 锡石墨炉原子化机理研究[J]. 分析测试学报, 1991, 0(3) |
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| 作者姓名： | 何金兰 莫少波 姚松年 杨业智 雍援 李洪仪 |
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| 作者单位： | 武汉大学测试中心(何金兰，莫少波，姚松年，杨业智，雍援)，武汉大学测试中心(李洪仪) |
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| 摘 要： | 本文考察了盐酸、硫酸、硝酸、亚硒酸及硼酸中锡的石墨炉原子吸收特性,对锡在不同基体中的原子化过程进行了初步探讨。发现硼酸是石墨炉法测定锡时的一种较好的化学改进剂;1%的硼酸加入可克服一定含量的硫酸与盐酸的干扰。并利用XRD与XPS对硼酸与锡共存时的石墨表面进行了结构与状态分析。提出了硼酸与锡共存时,锡的原子化历程。
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| 关 键 词： | 石墨炉原子吸收 锡 原子化机理 |
Study on the Atomization Mechanism of Tin in the Graphite Furnace |
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| He Jinlan,Mo Shaobo,Yao Songnian,Yang Yiezhi,Yong Yuan,Li Hongyi Test Center,Wuhan University. Study on the Atomization Mechanism of Tin in the Graphite Furnace[J]. Journal of Instrumental Analysis, 1991, 0(3) |
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| Authors: | He Jinlan Mo Shaobo Yao Songnian Yang Yiezhi Yong Yuan Li Hongyi Test Center Wuhan University |
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| Abstract: | The absoaption character of Tin in the graphite furnace with HCL, HNO_3,H_2SO_4, H_2SeO_3and H_3BO_3 was investigated. The mechanism of free atom formation of Tin in the different ma-trixes of graphite furnace was studied. It was found that the H_3BO_3 was a better matrix modi-fier for Tin in the graphite furnace. The addition of 1% H_3BO_3 can overcome some effects fromsulfuric acid hydrochloric acid. Under different temperature, the surfaces of the graphite furnace with H_3BO_3 and Sn wereanalyzed by X-ray power diffractometer and X-ray photoelectron spectrometer. The resultssuggest atomization process of Tin was changed because of the present of H_3BO_3. |
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| Keywords: | EAAS atomization mechanism Tin |
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