| 胃舒平片剂中铝含量测定方法研究 |
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| 引用本文： | 加建斌. 胃舒平片剂中铝含量测定方法研究[J]. 安徽农业科学, 2007, 35(24): 7388-7388,7390 |
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| 作者姓名： | 加建斌 |
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| 作者单位： | 榆林学院生命科学学院,陕西榆林,719000 |
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| 摘 要： | 研究了胃舒平片剂中铝含量的测定方法。样品消解后,先在pH值为7~8时,用稀NaOH溶液将Al3+沉淀为Al(OH)3,再加入KCl,反应中生成的游离KOH溶液,以酚酞为指示剂,用HCl标准溶液滴定至终点。加标回收率(R)在96.8%~100.1%,测定结果的相对标准偏差(RSD)<1.0%。结果表明,改进后的方法,操作方便、测定快捷,其准确度和精密度与标准法一致。
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| 关 键 词： | 胃舒平 铝含量 酸碱滴定法 |
| 文章编号： | 0517-6611（2007）24-07388-01 |
| 修稿时间： | 2007-04-16 |
Study on the Method of Determining Aluminum Content in Compound Aluminum Hyclroxide tablets |
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| JIA Jian-bin. Study on the Method of Determining Aluminum Content in Compound Aluminum Hyclroxide tablets[J]. Journal of Anhui Agricultural Sciences, 2007, 35(24): 7388-7388,7390 |
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| Authors: | JIA Jian-bin |
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| Affiliation: | School of Life Science, Yulin College,Yulin,Shaanxi 719000 |
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| Abstract: | The study on the method of determining aluminum content in compound aluminum hyclroxide tablets was conducted.The sample was digesting,the Al3+ was deposited as Al(OH)3 with thin solution of NaOH,while that remains pH 7～8.Then,KF was added and dissociated KOH was released.With phenolphthalein as the indicator and HCl as the standard solution,dissociated KOH was titrated to end point.The recovery of standard addition was between 96.8% and 100.1%,and the relative standard deviation of determination result was <1.0 %.The results showed that the improved method was a facility-operating way with the fast determination.The accuracy and precision of this method accorded with those of national standard method. |
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| Keywords: | Compound aluminum hyclroxide Aluminum content Acid-base titration |
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