| 石墨炉原子吸收光谱法测定超高纯试剂中钙的研究． |
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| 引用本文： | 陈旗.石墨炉原子吸收光谱法测定超高纯试剂中钙的研究．[J].福建分析测试,2008,17(3):76-78. |
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| 作者姓名： | 陈旗 |
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| 作者单位： | 苏州市晶协高新电子材料有限公司,江苏,苏州,215151 |
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| 摘 要： | 研究了超高纯试剂异丙醇中痕量钙的石墨炉原子吸收光谱测定法。制定了石墨炉原子吸收光谱法测定痕量钙的分析程序，试样经挥发浓缩，采用标准曲线法测定；还确定了仪器最佳工作条件，原子化条件等，研究了共存离子的干扰，回收试验及实测样品等。同时将石墨管用氯氧化锆进行适当的处理，并控制合适的仪器操作条件及升温程序，即可提高石墨炉原子吸收法测钙的灵敏度，获得了较满意的结果。
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| 关 键 词： | 钙 石墨炉原子吸收光谱法 超高纯试剂 |
Study on the Determination of Micro-amount calcium in Super-pure Chemical Reagents by Graphite Furnace Atomic Absorption Spectrometry |
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| Chen Qi.Study on the Determination of Micro-amount calcium in Super-pure Chemical Reagents by Graphite Furnace Atomic Absorption Spectrometry[J].Fujian Anal Ysis & Testing,2008,17(3):76-78. |
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| Authors: | Chen Qi |
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| Affiliation: | Chen Qi ( Suzhou Jingxie H ＆ N Electronic Material Co. ,Ltd, Suzhou 215151 ,China ) |
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| Abstract: | We studied the analytical conditions for calcium determination with a TAS-990 atomic absorption spectrophotometer.In order to determine microamount calcium in super-pure grade isopropyl alcohol,we adopted evaporation concentration and standard curve method.The graphite tube was properly processed with zirconium oxychloride.Together with the appropriate operating conditions and temperature programming,the sensitivity for calcium determination by graphite furnace atomic absorption spectrometry was enhanced an... |
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| Keywords: | calcium graphite furnace atomic absorption spectrometry super-pure chemical reagent |
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