| 高效液相色谱-串联质谱法测定茶叶中草甘膦残留量的不确定度评价 |
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| 引用本文： | 朱伟.高效液相色谱-串联质谱法测定茶叶中草甘膦残留量的不确定度评价[J].包装与食品机械,2013(6):58-60,68. |
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| 作者姓名： | 朱伟 |
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| 作者单位： | 上海市质量监督检验技术研究院,上海,200233 |
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| 摘 要： | 对茶叶中草甘膦残留量的高效液相色谱．串联质谱法测定过程进行了研究，分析测量过程的不确定度来源，并且对不确定度的各个分量进行评估和合成。结果表明，加标回收试验和标准物质纯度引入的不确定度分量是影响草甘膦残留量测定不确定度的主要原因。当茶叶中草甘膦残留量为0．67mg／kg时，扩展不确定度为0．026mg／kg，测定结果表示为X=（0．67±0．026）mg／kg，k=2，P=95％。
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| 关 键 词： | 草甘膦 高效液相色谱-串联质谱法 不确定度 |
Uncertainty Analysis of Glyphosate in Tea by HPLC-MS/MS Method |
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| ZHU Wei.Uncertainty Analysis of Glyphosate in Tea by HPLC-MS/MS Method[J].Packaging and Food Machinery,2013(6):58-60,68. |
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| Authors: | ZHU Wei |
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| Affiliation: | ZHU Wei ( Shanghai Institute of Quality Inspection and Technical Research, Shanghai 200233, China) |
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| Abstract: | To study the uncertainty of glyphosate in tea, we study the testing process in order to determine the major source of uncertainty. Besides we evaluate and synthesize each component of uncertainty. As the content of glyphosate is 0.67 mg/kg, the expanded uncertainty is 0.026 mg/kg. The result of glyphosate con- tent can be expressed as follows ： X = （0.67 ± 0. 026 ） mg/kg, k = 2, P = 95 %. |
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| Keywords: | glyphosate HPLC-MS/MS uncertainty |
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