| 氧化锌主含量测定的改进 |
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| 引用本文： | 孙鸿.氧化锌主含量测定的改进[J].化学与生物工程,2005,22(1):53-54. |
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| 作者姓名： | 孙鸿 |
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| 作者单位： | 山西省运城学院,山西,运城,044000 |
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| 摘 要： | 对氧化锌主含量的测定方法进行了改进：使锌呈锌氨络离子状态与干扰元素分离，pH值由原方法的10变为6，并加入相应的缓冲溶液，指示剂由铬黑T改为二甲酚橙，使滴定终点更易掌握，测定结果更加准确。
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| 关 键 词： | 氧化锌 测定 滴定 |
| 文章编号： | 1672-5425(2005)01-0053-02 |
| 修稿时间： | 2004年9月16日 |
Improvement of Determination Method of ZnO Content |
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| SUN Hong.Improvement of Determination Method of ZnO Content[J].Chemistry & Bioengineering,2005,22(1):53-54. |
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| Authors: | SUN Hong |
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| Abstract: | The determination method of ZnO content was improved: Zn~(2+) was separated from disturbing cations by complexing Zn~(2+) with NH_3, at pH=6, rather than pH=10 in traditional method, suitable buffer solution was used and indicator reagent was changed from eriochrome black T to xylenol orange ,so as to make titration end clearer and determining result more accurate. |
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| Keywords: | ZnO determination titration |
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