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| 本帖產(chǎn)生 1 個 翻譯EPI ，點擊這里進行查看 | ||
[求助]
急求~~化學(xué)方面，漢譯英。謝謝o(∩_∩)o
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| Cr(Ⅲ)的水解很復(fù)雜，其隨著溶液pH值的變化，會產(chǎn)生暫穩(wěn)態(tài)或亞穩(wěn)態(tài)的單核與多核聚合物。明膠是一種膠原蛋白多級的水解產(chǎn)生的肽分子聚合物質(zhì)，其分子結(jié)構(gòu)中一些側(cè)鏈基團可與一些金屬離子發(fā)生螯合作用，從而具備不同的作用。在本實驗中，選取鹽酸作為無氧酸的代表，硫酸作為有氧酸的代表，通過滴定法來研究Cr(Ⅲ)/明膠在不同酸性環(huán)境中與氫氧根絡(luò)合量，著重探究金屬離子與明膠的交聯(lián)作用。結(jié)果表明，在不同酸性條件下，Cr(Ⅲ)、明膠與羥基三者將不同程度的發(fā)生絡(luò)合作用。這除了受Cr(Ⅲ)的水解影響之外，估計還與酸中氧原子的是否存在有關(guān)。 |
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MisterZhou
銅蟲 (小有名氣)
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2樓2013-05-10 22:35:20
我們學(xué)校的數(shù)字資源最近用不起，
我只是想翻譯一下。。。。 3樓2013-05-10 23:15:45
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
愛與雨下: 金幣+1 2013-05-16 22:09:29
柳旒: 金幣+66, 翻譯EPI+1, ★有幫助, 雖然晚了一天，但是還是灰常感謝。o(∩_∩)o 2013-05-17 23:37:10
愛與雨下: 金幣+1 2013-05-16 22:09:29
柳旒: 金幣+66, 翻譯EPI+1, ★有幫助, 雖然晚了一天，但是還是灰常感謝。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樓2013-05-13 12:36:25
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