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| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | ||
[求助]
急求~~化学方面，汉译英。谢谢o(∩_∩)o
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| Cr(Ⅲ)的水解很复杂，其随着溶液pH值的变化，会产生暂稳态或亚稳态的单核与多核聚合物。明胶是一种胶原蛋白多级的水解产生的肽分子聚合物质，其分子结构中一些侧链基团可与一些金属离子发生螯合作用，从而具备不同的作用。在本实验中，选取盐酸作为无氧酸的代表，硫酸作为有氧酸的代表，通过滴定法来研究Cr(Ⅲ)/明胶在不同酸性环境中与氢氧根络合量，着重探究金属离子与明胶的交联作用。结果表明，在不同酸性条件下，Cr(Ⅲ)、明胶与羟基三者将不同程度的发生络合作用。这除了受Cr(Ⅲ)的水解影响之外，估计还与酸中氧原子的是否存在有关。 |
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MisterZhou
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2楼2013-05-10 22:35:20
我们学校的数字资源最近用不起，
我只是想翻译一下。。。。 3楼2013-05-10 23:15:45
【答案】应助回帖
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爱与雨下: 金币+1 2013-05-16 22:09:29
柳旒: 金币+66, 翻译EPI+1, ★有帮助, 虽然晚了一天，但是还是灰常感谢。o(∩_∩)o 2013-05-17 23:37:10
爱与雨下: 金币+1 2013-05-16 22:09:29
柳旒: 金币+66, 翻译EPI+1, ★有帮助, 虽然晚了一天，但是还是灰常感谢。o(∩_∩)o 2013-05-17 23:37:10
| The hydrolysis of Cr(Ⅲ) is very complicated, with the change of its solution pH value, triplet state or metastable mononucleated and multinucleated polymers will be produced. Gelatin is a kind of peptide macromolecule obtained from the multiple levels of hydrolysis of collagen. Chelation can be taken between some side chains in gelatin molecular structure and some metal ions, and have different effects. In this experiment, we selected hydrochloric acid as representative of hydracide and sulfuric acid as representative of oxyacid. The amount of complexation between Cr(Ⅲ)/gelatin and hydroxyl in different acidic conditions was studied by titrimetric method, focused on the crosslinking of metal ions and gelatin. Results show that under the condition of different acidic, Cr (Ⅲ)、gelatin and hydroxyl all three will be complexation to different extents. Not only was it affected by the hydrolysis of the Cr(Ⅲ), but also it estimated that was related to the existence of oxygen in acid. |
4楼2013-05-13 12:36:25
