高温钴基合金中硒碲铋的分析方法研究 |
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引用本文: | 姚金玉 彭兰乔. 高温钴基合金中硒碲铋的分析方法研究[J]. 分析试验室, 1997, 16(3): 54-56 |
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作者姓名: | 姚金玉 彭兰乔 |
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作者单位: | 中国科学院长春应用化学研究所国家电化学和光谱研究分析中心 |
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摘 要: | 提高反应酸度,降低还原剂浓度,有利于克服基体钴的干扰,在6mol/L盐酸溶液中,以0.1%KBH4作还原剂,1g/LCO^2+以硒,碲和铋的氢化物产生都没有干扰。利用石墨炉原位富集氢化物,可以直接测定高温钴基合金中硒,碲和铋。
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关 键 词: | 石墨炉原子吸收 钴基合金 硒 碲 铋 |
Direct Determination of Selenium,Tellurium,Bismuth in High Temperature Cobalt Base Alloys by Hydride Generation Graphite Furnace Atomic Absorption Spectrometry |
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Abstract: | The interference of Co 2+ in the hydride generation can be reduced by increasing hydrochloric acid concentration and decreasing KBH 4 concentration.Selecting 6mol/L hydrochloric acid and 0.1% KBH 4,1g/L Co 2+ has no interference in the determination of Se,Te and Bi .With in situ per concentration of the hydride in a graphite tube in the presence of Pd,Se,Te and Bi in high temperatute cobalt base allyos can be directly determined successfully. |
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Keywords: | Hydride generation graphite furnace atomic absorption spectrometry cobalt base alloy selenium tellurium bismuth |
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