| N2O4中铝含量的测定 |
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| 引用本文： | 刘艳英,刘再华,俞华斌.N2O4中铝含量的测定[J].上海航天,2006,23(6):58-60. |
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| 作者姓名： | 刘艳英 刘再华 俞华斌 |
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| 作者单位： | 西昌卫星发射中心,甘肃,西昌,615000 |
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| 摘 要： | 提出了一种用分光光度计测定N2O4中铝含量的方法。先对样品进行预处理以消除N2O4本身颜色对比色的影响。给出了测定步骤。由实验确定的操作条件是:显色剂为玫红三羧酸铵溶液0.5 g/L,最佳用量5 mL,最大吸收波长530 nm。实验表明,该法测得的N2O4中铝含量的相对标准偏差小于5%,回收率大于96%。方法准确可靠。
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| 关 键 词： | N2O4 铝含量 分光光度法 预处理 测定条件 相对标准差 回收率 |
| 文章编号： | 1006-1630（2006）06-0058-03 |
| 收稿时间： | 2006-05-16 |
| 修稿时间： | 2006-09-05 |
Measurement of the Aluminum Content in N2O4 |
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| LIU Yan-ying,LIU Zai-hua,YU Hua-bing.Measurement of the Aluminum Content in N2O4[J].Aerospace Shanghai,2006,23(6):58-60. |
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| Authors: | LIU Yan-ying LIU Zai-hua YU Hua-bing |
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| Institution: | Xichang Satellite Launch Center, Xichang Gansu 615000, China |
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| Abstract: | A measurement method of aluminum content in N_2O_4 using spectrophotometry was put forward in this paper.The pretreatment of the N_2O_4 sample was adopted to eliminate the influence of N_2O_4's color on the colorimetric.The measurement step was given.The test condition determined by experiment was that colour regent was(0.5) g/L ammonium aurin tricarboxylate solution with optimal 5 mL dosage and maximum absorbing wavelength was 530 nm.The test showed that the relative standard deviation of aluminum content in N_2O_4 measured by this method was smaller than 5%,and recovery rate was bigger than 96%.The method was accurate and reliable. |
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| Keywords: | Nitrogen tetroxide Aluminium content Spectrophotometry Pretreatment Measurement condition Relative standard deviation Recovery rate |
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