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| 测定苯甲酸钠含量的新方法 | |
| 引用本文： | 陆益民,贺铁山. 测定苯甲酸钠含量的新方法[J]. 华西药学杂志, 2005, 20(4): 318-320 |
| 作者姓名： | 陆益民 贺铁山 |
| 作者单位： | 仲恺农业技术学院化学与化工系,广东,广州,510225;仲恺农业技术学院基础部,广东,广州,510225 |
| 摘 要： | 目的建立用两点电位滴定法直接测定苯甲酸钠含量的方法。方法只需在化学计量点后适当位置测定两组滴定数据,即可确定化学计量点。结果平均偏差0.063,平均回收率为99.61%,RSD=0.21%(n=3)。结论所用方法简便、快速、准确,测定结果与药典法基本一致。 |
| 关 键 词： | 两点电位滴定法 苯甲酸钠 测定 |
| 文章编号： | 1006-0103(2005)04-0318-03 |
| 收稿时间： | 2004-01-01 |
| 修稿时间： | 2004-01-01 |
The new method for determination of sodium benzoate |
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| LU Yi-min,HE Tie-shan. The new method for determination of sodium benzoate[J]. West China Journal of Pharmaceutical Sciences, 2005, 20(4): 318-320 | |
| Authors: | LU Yi-min HE Tie-shan |
| Abstract: | OBJECTIVE To establish a two-point potentiometeric titration to determine sodium benzoate. METHODS Only two sets of data after and near the estimated stoichiometric point were taken,exact stoichiometric point was calculated upon these data. RESULTS The average deviation of this method was 0.063 and the average recovery was 99.61% with RSD of 0.21%(n=3).CONCLUSION The method is simple, rapid and accurate.Results obtainted are in accord with those of the China Pharmacopoeia 2000. |
| Keywords: | Two-point potentiometeric titration Sodium benzoate Determination |
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