| 高效液相色谱法测定水果和蔬菜中维生素C含量的不确定度评定 |
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| 引用本文： | 王霞,张维谊,韩奕奕,陈美莲,丰东升.高效液相色谱法测定水果和蔬菜中维生素C含量的不确定度评定[J].食品与机械,2021,37(5):73-77. |
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| 作者姓名： | 王霞 张维谊 韩奕奕 陈美莲 丰东升 |
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| 作者单位： | 上海市农产品质量安全中心，上海 201708 |
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| 基金项目： | 上海市科技兴农项目（编号：沪农科产字\[2019\]第2号） |
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| 摘 要： | 通过分析维生素C测定过程中不确定度的来源，建立数学模型，评定出各不确定度分量，计算出合成标准不确定度和扩展不确定度。结果表明，当样品中维生素C含量为33.7 mg/100 g时，扩展不确定度为1.4 mg/100 g （k=2）；标准储备溶液的配制和测量重复性是不确定度的主要来源。
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| 关 键 词： | 不确定度 维生素C 高效液相色谱法 水果 蔬菜 |
| 收稿时间： | 2020/7/30 0:00:00 |
Uncertainty evaluation of the determination of vitamin C in fruits and vegetables by high performance liquid chromatography |
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| WANGXi,ZHANGWeiyi,HANYiyi,CHENMeilian,FENGDongsheng.Uncertainty evaluation of the determination of vitamin C in fruits and vegetables by high performance liquid chromatography[J].Food and Machinery,2021,37(5):73-77. |
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| Authors: | WANGXi ZHANGWeiyi HANYiyi CHENMeilian FENGDongsheng |
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| Affiliation: | Shanghai Center of Agri-products Quality and Safety, Shanghai 201708, China |
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| Abstract: | To evaluate the uncertainty of the determination of vitamin C in fruits and vegetables by high performance liquid chromatography, a mathematical model was established to evaluate each uncertainty component, and the standard uncertainty and extended uncertainty of the synthesis were calculated. The results showed that the amounts of vitamin C in samples was 33.7 mg/100 g, and the expanded uncertainty was 1.4 mg/100 g (k=2). The uncertainties of the determination mainly come from the preparation of standard solution and the repeatability of determination. |
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