| 氯仿、乙醇作为溶剂测定大豆磷脂酸值 |
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| 引用本文： | 薛文成,李娜,孟冬娅,石富成. 氯仿、乙醇作为溶剂测定大豆磷脂酸值[J]. 沈阳药科大学学报, 2002, 19(4): 273-274,290 |
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| 作者姓名： | 薛文成 李娜 孟冬娅 石富成 |
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| 作者单位： | 1. 沈阳军区总医院,辽宁,沈阳,110016
2. 丹东市中医院,辽宁,丹东,118000 |
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| 摘 要： | 目的建立一种测定各种大豆磷脂酸值的方法。方法用氯仿乙醇 ( 2∶1 ,V∶V)作为溶剂溶解大豆磷脂后 ,用 0 1mol/L氢氧化钠滴定 ,并同药典法进行了对比。结果本方法的精密度RSD为0 3%～ 1 8% ,《中华人民共和国药典》法为 0 9%～ 7 3% ;本方法的回收率为 96 5 %～ 98 5 % ,《中华人民共和国药典》法为 78 5 %～ 97 0 %。结论用氯仿乙醇 ( 2∶1 ,V∶V)作为溶剂可适用于各种磷脂酸值的测定
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| 关 键 词： | 大豆磷脂 酸值 氯仿 乙醇 测定 |
| 文章编号： | 1006-2858(2002)04-0273-02 |
Determination of the acid value of soybean lecithin with the mixed solvent consisting of chloroform and alcohol |
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| XUE Wen-cheng ,LI Na ,MENG Dong-ya ,SHI Fu-cheng. Determination of the acid value of soybean lecithin with the mixed solvent consisting of chloroform and alcohol[J]. Journal of Shenyang Pharmaceutical University, 2002, 19(4): 273-274,290 |
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| Authors: | XUE Wen-cheng LI Na MENG Dong-ya SHI Fu-cheng |
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| Affiliation: | XUE Wen-cheng 1,LI Na 2,MENG Dong-ya 1,SHI Fu-cheng 1 |
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| Abstract: | Objective To develop a simple, rapid, and accurate method to determine the acid value of soybean lecithins. Methods Soybean lecithins were dissolved with the mixed solvent consisting of chloroform and alcohol, and titrated with 0.1mol/L sodium hydroxide, then the results were compared with the results of the pharmacopoeia method. Results The precision RSD and recovery of the present method were 0.3%～1.8% and 96.50%～98.48%, respectively; the precision RSD and recovery of the pharmacopoeia method were 0.9%～7.3% and 78.5%～97.0%, respectively. Conclusions The mixed solvent consisting of chloroform and alcohol is suitable for the determination of the acid value of any soybean lecithin. |
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| Keywords: | soybean lecithin acid value chloroform alcohol determination |
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