| ICP-MS测定车用尿素中八种金属元素含量的方法研究 |
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| 引用本文： | 晏润寒,晏欣,陈义龙,王亚,刘爱贤,郭绪强.ICP-MS测定车用尿素中八种金属元素含量的方法研究[J].广州化工,2014(22):121-122. |
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| 作者姓名： | 晏润寒 晏欣 陈义龙 王亚 刘爱贤 郭绪强 |
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| 作者单位： | 1. 中国石油大学 北京,北京,102249
2. 中国石油安全环保技术研究院,北京,102206 |
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| 摘 要： | 车用尿素是SCR系统必需的还原剂，过多含量的金属元素将会对催化剂等系统造成损害。本文使用ICP-MS对四种品牌车用尿素溶液中的八种金属元素（钙、镁、铝、铁、铜、锌、铬、镍）的含量进行测定，并进行了精密度、准确度及检测限的考察。结果表明使用该方法灰化时间短、操作简便，准确度及精密度、检出限等均符合要求。
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| 关 键 词： | 车用尿素 ICP-MS 金属元素检测 |
Determination of Eight Kinds of Metal Elements in Urea-water Solution by ICP-MS |
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| YAN Run-han,YAN Xin,CHEN Yi-long,WANG Ya,LIU Ai-xian,GUO Xu-qiang.Determination of Eight Kinds of Metal Elements in Urea-water Solution by ICP-MS[J].GuangZhou Chemical Industry and Technology,2014(22):121-122. |
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| Authors: | YAN Run-han YAN Xin CHEN Yi-long WANG Ya LIU Ai-xian GUO Xu-qiang |
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| Affiliation: | YAN Run-han;YAN Xin;CHEN Yi-long;WANG Ya;LIU Ai-xian;GUO Xu-qiang;China University of Petroleum (Beijing);CNPC Research Institute of Safety & Environment Technology; |
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| Abstract: | As the essential reducing agent of vehicle SCR system, excessive content of the metal elements in aqueous urea solution would cause damage to the catalyst system. Eight metal elements of calcium, magnesium, aluminum, iron, copper, zinc, chromium, and nickel content in four kinds of aqueous urea solution were determined by Inductively Coupled Plasma Mass Spectrometry （ICP-MS）, and the precision, accuracy and detection limit of this method were investigated. The determination results of the ICP-MS method were satisfactory, time saving and easy to operate. |
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| Keywords: | aqueous urea solution ICP-MS metal element detection |
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