Determination of the contents of iron(II), iron(III) and iron complexes in gelatin

S Tani; T Tani

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Determination of the contents of iron(II), iron(III) and iron complexes in gelatin

机译：明胶中铁（II），铁（III）和铁配合物含量的测定

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The determination of the content of iron (II), iron(III) and their complexes in gelatin was investigated by spectrophotometry using 2-nitroso-5-(N-n-propyl-N-(3-sulphorpropyl)- amino]phneol (nitroso-PSAP) as a colour reagent. Iron (II) and iron (III) reacted with nitroso- PSAP immediately, and part of their complexes reacted slowly with nitroso-PSAP. Stable Complexes such as ethylenediaminetetraacetic acid-iron (EDTA-Fe) did not react with nitroso- PSAP. In alkaline gelatins, iron was mainly in the state of iron (III). The content of unstable Iron complexes, the origin of which is the iron combined with protein, was higher in acid bone Gelatins than in alkaline bone gelatins. Gelatin has a specific quasi-equilibrium state for iron Ion, depending on the properties of the gelatin itself.

机译：使用2-亚硝基-5-（Nn-丙基-N-（3-sulphorpropyl）-氨基]苯酚（亚硝基苯甲酸酯）通过分光光度法研究了明胶中铁（II），铁（III）及其配合物的含量测定。 PSAP）作为显色剂，铁（II）和铁（III）立即与亚硝基PSAP反应，部分络合物与亚硝基PSAP缓慢反应，稳定的络合物（如乙二胺四乙酸铁（EDTA-Fe））没有在碱性明胶中，铁主要以铁（III）态存在；在酸性骨中，不稳定的铁络合物的含量高于碱性骨，其中不稳定的铁络合物的起源是与蛋白质结合的铁。明胶对铁离子具有特定的准平衡态，这取决于明胶本身的性质。

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《The imaging science journal》 |2002年第2期|p.50-62|共13页
作者
S Tani; T Tani;
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收录信息美国《科学引文索引》(SCI);
原文格式 PDF
正文语种 eng
中图分类摄影技术;
关键词
gelatin; iron(II); iron(III); unstable iron complexes;

机译：明胶;铁（II）;铁（III）;不稳定的铁络合物;

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Determination of the contents of iron(II), iron(III) and iron complexes in gelatin

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