| 反相高效液相色谱法检测葡萄味碳酸饮料中苋菜红和亮蓝的不确定度评定 |
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| 引用本文： | 胡云,严志刚.反相高效液相色谱法检测葡萄味碳酸饮料中苋菜红和亮蓝的不确定度评定[J].现代农业科技,2011(12):328-330,336. |
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| 作者姓名： | 胡云 严志刚 |
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| 作者单位： | 1. 扬州市产品质量监督检验所,江苏扬州,225000
2. 扬州市第一人民医院 |
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| 摘 要： | 对碳酸饮料中苋菜红、亮蓝的液相色谱分析方法进行了不确定度评定,为直接进样法检测合成着色剂的色谱条件优化及试验过程质量控制提供了科学的依据。根据《化学分析中不确定度评估指南》重点对峰面积、标准溶液浓度、样品称重、样品定容体积、回收率和数值修约等不确定度分量逐一进行了评定,并计算合成不确定度和扩展不确定度,结果为m苋=0.014±0.000 32 g/kg,k=2;m亮=0.014±0.000 51g/kg,k=2。各不确定度分量对总不确定度的贡献按由高到低顺序排列为峰面积>标液浓度>回收率>数值修约>样品定容体积>样品称重。
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| 关 键 词： | 反相高效液相色谱 苋菜红 亮蓝 不确定度评定 |
Estimation of Measurement Uncertainty of Determination of Amaranth and Blue brilliant in Grape Sodas by Reversed-phase High Performance Liquid Chromatography |
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| Authors: | HU Yun YAN Zhi-gang |
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| Institution: | HU Yun 1 YAN Zhi-gang 2(1 Yangzhou Products Quality Supervison and Inspection Institute,Yangzhou Jiangsu 225000,2 Yangzhou No.1 People's Hospital) |
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| Abstract: | A uncertainty estimation procedure was developed for analysis of amaranth and blue brilliant in sodas and this HPLC analysis of synthetic colour provided a scientific evidence for a optimized chromatographic method and quality control in analysis procedure of direct injection.In quantification of uncertainty components,some important uncertainty sources such as peak area,standard concentration,mass of sample,volume of sample,recovery and rounding off for values were calculated in sequence based on GUM.At th... |
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| Keywords: | reversed-phase high performance liquid chromatography(RHPLC) amaranth blue brilliant estimation of measurement uncertainty |
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