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内吗啡肽-1水溶液的稳定性

刘晖, 杨顶建, 倪京满*, 王锐   

  1. 1.兰州医学院药学系, 甘肃 兰州 730000;
    2.兰州大学生命科学学院, 甘肃 兰州 730000
  • 收稿日期:2003-05-06 修回日期:2003-08-10 出版日期:2003-09-15 发布日期:2003-09-15
  • 通讯作者: 倪京满*

The Stability of Endomorphin-1 Solution

LIU Hui, YANG Ding-jian, NI Jing-man*, WANG Rui   

  1. 1.Department of Pharmacy, Lanzhou Medical College, Lanzhou 730000, China;
    2.School of Life Science, Lanzhou University,Lanzhou 730000, China
  • Received:2003-05-06 Revised:2003-08-10 Online:2003-09-15 Published:2003-09-15
  • Contact: NI Jing-man*

摘要: 目的 研究内吗啡肽1(EM-1)水溶液最稳定pH值及预测EM-1水溶液室温贮存期。方法 采用HPLC法作为测定方法, 利用恒温加速实验研究EM-1水溶液的稳定性。结果 绘制出pH =速率图,恒温加速实验得到Arrehnius方程及动力学参数。结论 EM-1水溶液最稳定pH值为4.54.8,预测EM-1室温( 25 °C)t1/2 45天。

关键词: 内吗啡肽-1, 最稳定pH值, 恒温加速实验, HPLC

Abstract: Aim To study the most stable pH value of endomorphin-1 solution and to estimate the shelf-life of EM-1 solution. Methods The content of EM-1 in its solution was determined by HPLC, and stability was studied by accelerated tests. Results The most stable pH value of EM-1 solution was observed. By the accelerated tests we obtained the Arrhenius relationship and the pharmacokinetic parameters. Conclusion The most stable pH value of EM-1 solution is 4.5-4.8. The t1/2 (25 °C) is 45 d.

Key words: endomorphin 1, endomorphin 1, most stable pH value, most stable pH value, accelerated tests, accelerated tests, HPLC, HPLC

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Supporting: *Corresponding author. Tel.: 0931-3690318; fax: 0931-8911255