| 分光光度法测定食品中亚硝酸盐不确定度评估 |
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| 作者姓名： | 陈银珊 |
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| 作者单位： | 广东产品质量监督检验研究院,广东 广州 510670 |
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| 摘 要： | 本文根据《测量不确定度评定与表示》(JJF 1059.1—2012)和《食品安全国家标准食品中亚硝酸盐与硝酸盐的测定》(GB 5009.33—2016),利用分光光度法对食品中亚硝酸盐的含量进行测定,建立数学模型对亚硝酸盐含量测定的不确定度来源分量进行计算、分析,食品中亚硝酸盐的测定结果可以表示为X=(11.2±0.70)mg·kg-1,k=2,为评价试验测量结果的真确性提供科学依据。
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| 关 键 词： | 亚硝酸盐 不确定度 食品 分光光度法 |
Evaluation of Uncertainty in Determination of Nitrite in Food by Spectrophotometry |
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| Authors: | CHEN Yinshan |
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| Institution: | (Guangdong Testing Institute of Product Quality Supervision,Guangzhou 510670,China) |
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| Abstract: | According to JJF 1059.1—2012 and GB 5009.33—2016,the content of nitrite in food is measured by spectrophotometry.Determine,establish a mathematical model to calculate and analyze the source of uncertainty in the determination of nitrite content.The determination result of nitrite in food can be expressed as X=(11.2±0.70)mg·kg-1,k=2,provide a scientific basis for evaluating the authenticity of the test measurement results. |
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| Keywords: | nitrite uncertainty food spectrophotometry |
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