| 高频燃烧红外吸收法测定碳酸铵中的微量硫 |
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| 引用本文： | 阮桂色,徐晓艳. 高频燃烧红外吸收法测定碳酸铵中的微量硫[J]. 矿冶, 2004, 13(2): 101-102,81 |
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| 作者姓名： | 阮桂色 徐晓艳 |
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| 作者单位： | 北京矿冶研究总院,北京100044;北京矿冶研究总院,北京100044 |
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| 摘 要： | 产品碳酸铵中硫含量很低,无法采用常规分析方法直接检测。本文通过对碳酸铵进行预处理,选择合适的分析条件,通过手动重量输入法,采用LECO CS 344碳硫红外分析仪进行测定。方法准确度较高,灵敏度好,测定结果与碘量法一致。标准偏差RSD<0 005%(n=8),方法回收率99 2%～101 2%。
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| 关 键 词： | 红外吸收法 碳酸铵样品 微量硫的测定 |
| 文章编号： | 1005-7854(2004)02-0101-02 |
DETERMINATION OF TRACE SULPHUR IN AMMONIUM CARBONATE BY INFRA-RED ABSORPTION METHOD |
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| RUAN Gui-se,XU Xiao-yan. DETERMINATION OF TRACE SULPHUR IN AMMONIUM CARBONATE BY INFRA-RED ABSORPTION METHOD[J]. Mining & Metallurgy, 2004, 13(2): 101-102,81 |
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| Authors: | RUAN Gui-se XU Xiao-yan |
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| Abstract: | It is difficult to determine trace sulphur in ammonium carbonate by normal analytical methods.In the analytical method used in this study, the IR-spectrometric C/S analyzer LECO-CS-344 is used to determine trace sulphur in pretreated ammonium carbonate with suitable analytical conditions and manual addition of flux,with high precision and sensitivity.The determining results are in conformity with those determined by combustion-potassium iodate titrimetric method.The RSD is found to be less than 0.005%(n=8),and recoveries are in the range of 99.2%～101.2%. |
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| Keywords: | Infra-red absorption method Sample of ammonium carbonate Determination of trace sulphur |
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