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| Evaluation of Uncertainty in Determination of Na+ Content in Serum by Atomic Absorption Spectrometry |
| Received:October 31, 2011 Revised:April 12, 2012 |
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| DOI：doi:10.3969/j.issn.2095-1035.2012.02.0020 |
| KeyWord:serum; Na ion; uncertainty |
| Author | Institution |
| LIU Lili |
黑龙江省计量检定测试院，哈尔滨 |
| ZHANG Rui |
黑龙江省计量检定测试院，哈尔滨 |
| LIU Wei |
哈尔滨市产品质量技术监督检验院，哈尔滨 |
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| Abstract: |
| The uncertainty of quantitative determination of Na+ content in serum was evaluated. The main sources of uncertainties include the uncertainties in digestion of the serum samples, sample preparation, volume regulation, Na + standard solution preparation for making a calibration curve, curve fitting for the standard curve, etc. The individual uncertainty arising from each source, defined as a component uncertainty, was calculated. The combined uncertainty for measurement results, obtained by combining each calculated component uncertainty, together with the expanded uncertainty were used in writing the final measurement report. |
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