| 不同晶型甘氨酸在水中溶解度的测定与关联 |
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| 引用本文： | 王明,尹秋响,王静康.不同晶型甘氨酸在水中溶解度的测定与关联[J].氨基酸和生物资源,2006,28(4):56-58. |
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| 作者姓名： | 王明 尹秋响 王静康 |
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| 作者单位： | 天津大学化工学院,天津,300072;天津大学化工学院,天津,300072;天津大学化工学院,天津,300072 |
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| 摘 要： | 不同晶型甘氨酸溶解度的测定对研究甘氨酸结晶及多晶型现象具有重要意义。采用激光动态法测定了15~80℃范围内α型和γ型甘氨酸在纯水中的溶解度数据,并且采用Apelb lat溶解度经验方程对实验数据进行了关联,回归了溶解度经验方程的参数,关联效果令人满意。实验结果表明,在水中α和γ甘氨酸溶解度均随温度升高而变大;在相同温度下,热力学亚稳的α型甘氨酸比稳态的γ型甘氨酸溶解度大。
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| 关 键 词： | 甘氨酸 多晶型 溶解度 |
| 文章编号： | 1006-8376(2006)04-0056-03 |
| 收稿时间： | 09 16 2006 12:00AM |
| 修稿时间： | 2006年9月16日 |
Determination and Correlation of the Solubility of Different Forms of Glycine in Water |
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| WANG Ming,YIN Qiu-Xiang,WANG Jing-kang.Determination and Correlation of the Solubility of Different Forms of Glycine in Water[J].Amino Acids & Biotic Resources,2006,28(4):56-58. |
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| Authors: | WANG Ming YIN Qiu-Xiang WANG Jing-kang |
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| Institution: | School of Chemical Engineering and Technology, Tianjin University, Tianfin 300072, China |
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| Abstract: | It is important to measure the solubility of different forms of glycine for studying crystallization and polymorphism of glycine.The solubility of α-glycine and γ-glycine in pure water at 15~80~.C was determined by laser dynamic method.Results of these measurements were correlated with Apelblat equation.It was found that this equation was able to correlate the solubility data well.The solubility of α-and γ-glycine was increased with the increase of temperature and the metastable α-glycine had a higher solubility than the stable γ-glycine at the same temperature. |
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| Keywords: | glycine polymorphism solubility |
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