| 明胶与Cu2+的结合平衡研究 |
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| 引用本文： | 唐世华.明胶与Cu2+的结合平衡研究[J].广西民族大学学报,2004,10(2):95-98. |
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| 作者姓名： | 唐世华 |
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| 作者单位： | 广西民族学院,化学与生态工程学院,广西,南宁,530006 |
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| 基金项目： | 驻马店自然科学基金资助项目(20020162);河南省教育厅重点科研基金资助项目(97150022). |
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| 摘 要： | 利用分光光度法,研究了不同酸度下,Cu2+与明胶结合反应的结合数、结合位置数和摩尔吸光系数.显微红外光谱的测定结果表明,Cu2+与明胶分子中的酰胺键发生了作用.推导出由吸光度计算结合平衡常数的理论公式,并计算出结合平衡常数.结果表明,随pH值增大,结合数增多; 结合平衡常数增大.
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| 关 键 词： | 明胶 Cu2+/明胶配合物 分光光度法 结合平衡 |
| 文章编号： | 1007-0311(2004)02-0095-04 |
| 修稿时间： | 2004年4月10日 |
Study on Binding Eqilibrium of Gelatin with Copper |
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| TANG Shi-hua.Study on Binding Eqilibrium of Gelatin with Copper[J].Journal of Guangxi University For Nationalities(Natural Science Edition),2004,10(2):95-98. |
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| Authors: | TANG Shi-hua |
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| Abstract: | Binding eqilibrium of gelatin with Cu~(2+) is investiged at different pH value by spectrophotometric method. The binding numbers, bingding site numbers and molar absorptivity of copper in gelatin are calculated at different pH value. The result of micro-IR shows that Cu~(2+) interacte with the amido bond in the gelatin molecule. It is given that equation for calculation binding equilibrium constant by absorbance of the chelates gelatin with Cu~(2+). Results show that binding numbers, molar absorptivity and binding equilibrium constants increases with increasing pH value. |
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| Keywords: | Gelatin Chelates gelatin and Cu~(2+) Spectrophotometric methods Binding equilibrium |
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