| 在石墨炉内石墨探针表面上的原子化机理研究XI.硝酸铋的原子化机理 |
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| 引用本文： | 邓勃,刘强.在石墨炉内石墨探针表面上的原子化机理研究XI.硝酸铋的原子化机理[J].清华大学学报(自然科学版),1992(6). |
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| 作者姓名： | 邓勃 刘强 |
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| 作者单位： | 化学系
(邓勃)，太原工业大学应用化学系(刘强) |
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| 摘 要： | 研究了硝酸铋在石墨炉内石墨探针表面上的原子化机理，结果表明．硝酸铋首先分解为氧化铋，后者被碳还原生成铋，铋再蒸发进入气相，经历二聚体，尔后分解为气态铋原子。
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| 关 键 词： | 铋 原子化机理 石墨探针 石墨炉原子吸收分光光度法 |
Studies on the atomization mechanism of the elements on graphite probe surface in graphite furnace XI. Atomization mechanism of bismuth nitrate |
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| Deng Bo,Liu Qiang.Studies on the atomization mechanism of the elements on graphite probe surface in graphite furnace XI. Atomization mechanism of bismuth nitrate[J].Journal of Tsinghua University(Science and Technology),1992(6). |
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| Authors: | Deng Bo Liu Qiang |
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| Institution: | Department of Chemistry |
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| Abstract: | The atomization mechanism of bismuth nitrate from graphite probe surface in the graphite furnace was studied and a mechanism for the formation of Bi atoms is proposed. The mechanism is primarily a thermal decomposition of Bi(NO3) 3 at about 900K to form Bi2O3, followed by thermal dissociation of Bi2O3 to form a simple substance of bismuth at about 1 500K. The latter is vaporized into gas phase to form dimer of bismuth Bi2 and then Bi2 is dissociated to form bismuth atom. |
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| Keywords: | bismuth atomization mechanism graphite probe graphite furnace atomic absorption spectrophotometry |
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