| 电感耦合等离子体原子发射光谱法间接测定盐酸苯海索 |
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| 引用本文： | 刘永明,李桂芝.电感耦合等离子体原子发射光谱法间接测定盐酸苯海索[J].分析化学,2001,29(1):66-69. |
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| 作者姓名： | 刘永明 李桂芝 |
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| 作者单位： | 烟台大学化学学院, |
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| 摘 要： | 研究了等离子发射光谱法间接测定片剂中盐酸苯海索含量的方法。详细讨论了ICP AES测定硼的“记忆效应”及最佳测定条件。实验表明在pH 2 .0～ 6 .0范围内 ,当四苯硼钠过量时可完全沉淀盐酸苯海索 ,硝酸铝可以使沉淀迅速絮凝而易于过滤 ,测定滤液中的四苯硼钠可以计算得到盐酸苯海索的含量。该法简单快速 ,相对标准偏差为 2 1%。实验测得盐酸苯海索 四苯硼沉淀的溶度积Ksp在 2 0℃时为8 84× 10 -12
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| 关 键 词： | 电感耦合等离子本 原子发射光谱法 盐酸苯海索 四苯硼钠 沉淀 中枢性抗胆碱药 测定 |
Indirect Determination of Benzhexoli in Tablets by Inductively Coupled Plasma-Atomic Emission Spectroscopy |
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| Liu Yongming.Indirect Determination of Benzhexoli in Tablets by Inductively Coupled Plasma-Atomic Emission Spectroscopy[J].Chinese Journal of Analytical Chemistry,2001,29(1):66-69. |
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| Authors: | Liu Yongming |
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| Abstract: | The method for indirect determination of benzhexoli in talbets byinductively coupled plasina-atomic emission spectroscopy (ICP-AES) was studied and the suitable conditions were selected. The memory effect of determination of boron by ICP-AES was discussed. In the pH range of 2.0～6.0, the benzhexoli was completely precipitated by excessive sodium tetraphenylborate. The solubility-product Ksp was measured to be 8.84×10－12 at 20℃. The precipitation was fluctuated by aluminum nitrate and filtered easily. The boron in filtrate was detected by ICP-AES for calculating the content of benzhexoli in samples. The method was applied to the determination of benzhexoli in samples with precision of RSD 2.1%. |
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| Keywords: | Inductively coupled plasma atomic emission spectroscopy benzhexoli hydrochloride sodium tetraphenylborate precipitation |
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