豆腐皮中乌洛托品残留量的测定不确定度评估
目的评定液相色谱-质谱法测定豆腐皮中乌洛托品留量的不确定度。方法运用JJF 1059.1-2012《测量不确定度评定与表示》分析豆腐皮中的乌洛托品残留量测量过程中的不确定度来源,通过建立数学模型量化不确定度分量,计算合成不确定度和扩展不确定度。结果本方法的不确定度主要来源于液相色谱质谱仪设备。当豆腐皮中乌洛托品残留量为0.523 mg/kg,扩展不确定度为0.018 mg/kg,乌洛托品残留量表示为（0.523±0.018）mg/kg（k=2）。结论该评定方法可为液相色谱-质谱法测定豆腐皮中乌洛托品残留量的结果和方法的可靠性提供科学依据。...
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| Published in | 食品安全质量检测学报 Vol. 8; no. 9; pp. 3601 - 3605 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
云南省产品质量监督检验研究院, 国家热带农副产品监督检验中心, 昆明 650223%云南省计量测试技术研究院,昆明,650228
2017
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| Subjects | |
| Online Access | Get full text |
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| Summary: | 目的评定液相色谱-质谱法测定豆腐皮中乌洛托品留量的不确定度。方法运用JJF 1059.1-2012《测量不确定度评定与表示》分析豆腐皮中的乌洛托品残留量测量过程中的不确定度来源,通过建立数学模型量化不确定度分量,计算合成不确定度和扩展不确定度。结果本方法的不确定度主要来源于液相色谱质谱仪设备。当豆腐皮中乌洛托品残留量为0.523 mg/kg,扩展不确定度为0.018 mg/kg,乌洛托品残留量表示为（0.523±0.018）mg/kg（k=2）。结论该评定方法可为液相色谱-质谱法测定豆腐皮中乌洛托品残留量的结果和方法的可靠性提供科学依据。 |
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| Bibliography: | 11-5956/TS BAI Xiang1, WEI Yong-Lin2, HU Zeng-Bin1, PANG Li-Ming1, DONG Shu-Fen1, ZHANG Xue-Zhong1, FENG Lei1, NIU Zhi-Rui1. （1. Yunnan Institute of Product Quality Supervision ＆ Inspection, National Agricultural and Sideline Products Quality Supervision and Inspeetion Center, Kunming 650223, China; 2. Yunnan Institute of Measuring and Testing Technology, Kunming 650228, China） urotropine; uncertainty; Tofu skin; liquid chromatography-mass spectrometry Objective To evaluate the uncertainty in determination of urotropine in Tofu skin by liquid chromatography-mass spectrometry （LC-MS）. Method According to JJF 1059.12-2012 Evaluation and expression of uncertainty in measurement, the uncertainty sources in determination of urotropine in Tofu skin were analyzed. Furthermore, the combined uncertainty and expanded uncertainty were calculated based on the established mathematic models. Results The major uncertainty source in this method was liquid chromatography-mass spectrometer equipment. When the urotropine residual |
| ISSN: | 2095-0381 |