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| 元素分析仪测定土壤氮、碳含量的不确定度评定 | |
| 引用本文： | 孙玉芳,王曦. 元素分析仪测定土壤氮、碳含量的不确定度评定[J]. 分析测试技术与仪器, 2016, 0(4): 240-245. DOI: 10.16495/j.1006-3757.2016.04.008 |
| 作者姓名： | 孙玉芳 王曦 |
| 作者单位： | 中国科学院 南京土壤研究所,江苏 南京,210008 |
| 摘 要： | 用实例对元素分析仪测定土壤氮、碳含量不确定度进行评定.分析讨论了测定过程中不确定度的来源、不确定度分量的计算.结果表明,影响土壤碳、氮含量测定不确定度的主要因素是标准物质的引入和标准曲线的绘制. |
| 关 键 词： | 元素分析仪 土壤 碳 氮 测量不确定度 |
| 收稿时间： | 2016-09-22 |
| 修稿时间： | 2016-11-22 |
Uncertainty Evaluation of Measurement Results for Determination of Total Carbon and Nitrogen in Soil Samples Using Elemental Analyzer |
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| SUN Yu-fang and WANG Xi. Uncertainty Evaluation of Measurement Results for Determination of Total Carbon and Nitrogen in Soil Samples Using Elemental Analyzer[J]. Analysis and Testing Technology and Instruments, 2016, 0(4): 240-245. DOI: 10.16495/j.1006-3757.2016.04.008 | |
| Authors: | SUN Yu-fang and WANG Xi |
| Affiliation: | Nanjing Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210018, China;Nanjing Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210018, China |
| Abstract: | The uncertainty of carbon and nitrogen in soil samples determined by elemental analyzers was evaluated in this paper. The sources of the uncertainty in the determination were analyzed and discussed. Results showed that main factors of the uncertainty are standard reference materials and regression working-curves. |
| Keywords: | elemental anlyzer soil carbon nitrogen measurement uncertainty |
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