| 钨合金中铁元素含量的邻二氮菲分光光度测定方法研究 |
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| 引用本文： | 王洪元,杨梨容,李小伍,余长秀,吴建碧,唐杰.钨合金中铁元素含量的邻二氮菲分光光度测定方法研究[J].绵阳师范高等专科学校学报,2014(8):53-55. |
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| 作者姓名： | 王洪元 杨梨容 李小伍 余长秀 吴建碧 唐杰 |
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| 作者单位： | 绵阳师范学院化学与化学工程学院 ,四川绵阳 621000 |
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| 基金项目： | 绵阳市科技局重大专项（编号：12J005） |
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| 摘 要： | 根据郎伯-比尔定律,以氢氟酸和硝酸溶解钨合金,邻二氮菲为络合剂（显色剂）,盐酸羟胺为还原剂,在波长为511 nm,pH为6的条件下,采用分光光度法测得其中的铁含量为0.3374%（质量百分含量）,测试的相对平均偏差为0.1037%.对反应条件进行了系统的研究,该方法测定速度快,灵敏度高,干扰小,结果准确可靠.
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| 关 键 词： | 邻二氮菲 分光光度法 郎伯-比尔定律 钨合金 微量铁 |
On Determination Method of Iron in Tungsten Alloy by Orthophenanthroline Spectrophotometry |
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| WANG Hong-yuan,YANG Li-rong,LI Xian-wu,YU Chang-xiu,WU Jian-bi,TANG Jie.On Determination Method of Iron in Tungsten Alloy by Orthophenanthroline Spectrophotometry[J].Journal of Mianyang Teachers College,2014(8):53-55. |
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| Authors: | WANG Hong-yuan YANG Li-rong LI Xian-wu YU Chang-xiu WU Jian-bi TANG Jie |
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| Institution: | (School of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang, Sichuan 621000) |
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| Abstract: | According to Lambert-Beer Law,the trace iron of tungsten alloy which had been dissolved in HF acid aqua was determined by orthophenanthroline spectrophotometry. The hydroxylamine hydrochloride was used for reductive agent. Furthermore,the wavelength of determination was 511 nm,and the pH value was 6. It was showed that the trace iron of tungsten alloy is 0. 3374%（weight percentage）. The relative standard deviation is 0. 1037%. On the other hand,this method has several advantages,such as high sensitivity,less interference,rapid operation and dependable result. |
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| Keywords: | Orthophenanthroline Spectrophotometry Lambert-Beer Law tungsten alloy trace iron |
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