| 紫外分光光度法测定增碳剂中氮含量 |
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| 引用本文： | 张家相,徐 刚,贾 云.紫外分光光度法测定增碳剂中氮含量[J].中国无机分析化学,2012,2(2):34-37. |
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| 作者姓名： | 张家相 徐 刚 贾 云 |
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| 作者单位： | 水城钢铁有限责任公司技术中心,重庆科技学院化学化工学院 |
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| 基金项目： | 水钢技术中心创新项目（技字201108）资助 |
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| 摘 要： | 用惰性气体保护,卧式电阻炉高温灼烧处理增碳剂样品,在水蒸气环境下,将增碳剂中的氮还原成氨,在碱性过硫酸钾存在下,用紫外分光光度法测定其中氮含量,可得到较高的准确度和精密度,相对标准偏差小于6%,方法简单、快速、成本低,能满足炼钢生产对增碳剂中氮的检测要求。
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| 关 键 词： | 高温灼烧 紫外分光光度法 增碳剂 氮 |
| 收稿时间： | 2011/10/17 0:00:00 |
| 修稿时间： | 3/4/2012 12:00:00 AM |
Determination of Nitrogen Content in Recarburizer by UV Spectrophotometry |
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| ZHANG Jiaxiang,XU Gang and JIA Yun.Determination of Nitrogen Content in Recarburizer by UV Spectrophotometry[J].Chinese Journal of Inorganic Analytical Chemistry,2012,2(2):34-37. |
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| Authors: | ZHANG Jiaxiang XU Gang and JIA Yun |
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| Institution: | Shuicheng iron and steel Co,LTD technology center,College of Chemistry and Chemical engineering,ChongQing University of science and technology |
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| Abstract: | Under inert gas protection, recarburizer samples were burned at high temperature in a horizontal resistance furnace. In the Water vapor environment, the nitrogen in recarburizer was deoxidized to ammonia. The nitrogen content were determined by UV spectrophotometry in the presence of alkaline persulfate. The analytical results showed that nitrogen content can be quantitatively determined by the method with good accuracy and precision and with the RSD less than 6%. The method was simple, fast and low-cost, which can meet the requirements for detecting nitrogen in steelmaking manufacturing process. |
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| Keywords: | high-temperature treatment UV spectrophotometry Recarburizer nitrogen |
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