| 火焰原子吸收光谱法测定汽车尾气催化剂中Pd的研究 |
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| 引用本文： | 魏笑峰,蔡国辉,肖益鸿,詹瑛瑛,谢增鸿,魏可镁.火焰原子吸收光谱法测定汽车尾气催化剂中Pd的研究[J].光谱学与光谱分析,2009,29(12). |
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| 作者姓名： | 魏笑峰 蔡国辉 肖益鸿 詹瑛瑛 谢增鸿 魏可镁 |
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| 作者单位： | 1. 福州大学化肥催化剂国家工程研究中心,福建福州,350002
2. 福州大学化学化工学院,福建福州,350002 |
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| 基金项目： | 国家科技支撑计划项目 |
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| 摘 要： | 研究了火焰原子吸收光谱法测定汽车尾气净化催化剂中的贵金属Pd.对测试条件和共存元素的干扰进行了研究.采用H_2O_2+HCl溶解催化剂,在基体元素共存的条件下,直接测定催化剂中的Pd.方法线性范围为0.1～15 μg·mL~(-1),检测限为0.029 μg·mL~(-1),相埘标准偏差(RSD)在0.8%～2.5%之间,加标回收率为99.6%～101.2%.方法简便,快速,准确,满足催化剂测试要求.
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| 关 键 词： | 钯 火焰原子吸收光谱法 汽车尾气催化剂 |
Determination of Palladium in Automobile Exhaust Catalysts by FAAS Method |
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| WEI Xiao-feng,CAI Guo-hui,XIAO Yi-hong,ZHAN Ying-ying,XIE Zeng-hong,WEI Ke-mei.Determination of Palladium in Automobile Exhaust Catalysts by FAAS Method[J].Spectroscopy and Spectral Analysis,2009,29(12). |
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| Authors: | WEI Xiao-feng CAI Guo-hui XIAO Yi-hong ZHAN Ying-ying XIE Zeng-hong WEI Ke-mei |
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| Institution: | WEI Xiao-feng1,CAI Guo-hui1,XIAO Yi-hong1,ZHAN Ying-ying1,XIE Zeng-hong2,WEI Ke-mei1 1.National Engineering Research Center of Chemical Fertilizer Catalyst,Fuzhou University,Fuzhou 350002,China2.College of Chemistry and Chemical Engineering,China |
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| Abstract: | Palladium in automotive exhaust catalyst was determined by flame atomic absorption spectrometry (FAAS). The ana-lytical conditions and the coexisting elements interference were studied. The catalyst was dissolved by the mixture of H_2O_2 and HCl. Pd in the solution was directly determined by FAAS method. The linearity of working curve ranges from 0. 1 to 15 μg·mL~(-1); the detection limit is 0. 029 μg·mL~(-1); the relative standard deviation (RSD) range is from 0. 8% to 2.5%; and the re-covery rate range is from 99. 6% to 101.2%. It is a simple and convenient method for accurate analysis of Pd in the exhaust cata-lysts. |
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| Keywords: | Palladium Flame atomic absorption spectrometry Automobile exhaust catalysts |
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