| 石墨炉原子吸收分光光度法测定稻米中铬含量的不确定度分析 |
| |
| 引用本文： | 冯信平,田家金.石墨炉原子吸收分光光度法测定稻米中铬含量的不确定度分析[J].热带作物学报,2011,32(9):1765-1768. |
| |
| 作者姓名： | 冯信平 田家金 |
| |
| 作者单位： | 1. 中国热带农业科学院分析测试中心,海南海口,571101
2. 红河学院,云南蒙自,661100 |
| |
| 摘 要： | 采用石墨炉原子吸收分光光度法测定稻米中铬含量,根据《测量不确定度评定与表示》(JJF1059-1999)有关规定分析不确定度的来源。结果表明,稻米中铬的含量为0.11 mg/kg,扩展不确定度为0.02 mg/kg(包含因子k=2)。不确定度主要由样品处理过程和测量结果的相对标准偏差所引入。
|
| 关 键 词： | 石墨炉原子吸收分光光度法 铬 不确定度 |
Uncertainty Evaluation of Determining Chromium Content in Rice by Graphite Furnace-AAS |
| |
| FENG Xinping and TIAN Jiajin.Uncertainty Evaluation of Determining Chromium Content in Rice by Graphite Furnace-AAS[J].Chinese Journal of Tropical Crops,2011,32(9):1765-1768. |
| |
| Authors: | FENG Xinping and TIAN Jiajin |
| |
| Institution: | FENG Xinping,TIAN Jiajin2 1 Analysis and Testing Center,Chinese Academy of Tropical Agricultural Sciences,Haikou,Hainan 571101,China 2 Honghe College,Mengzi,Yunnan 661100,China |
| |
| Abstract: | The objective of this study was to evaluate the uncertainty of determining chromium in rice by the graphite furnace atomic absorption spectrometry method and find out elements affecting the uncertainty.It can provide evidences for evaluating the determination reports.The uncertainty source was analyzed according to Evaluation and Representation of Determination Uncertainty(JJF1059-1999).Results showed the content of chromium in rice was 0.11 mg/kg,and the expanded uncertainty was 0.02 mg/kg(k=2).Conclusion ... |
| |
| Keywords: | Graphite furnace-AAS Chromium Uncertainty |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《热带作物学报》浏览原始摘要信息 |
| 点击此处可从《热带作物学报》下载免费的PDF全文 |
|
