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| 氢化物原子荧光法测定饮料中总砷含量的不确定度评定 | |
| 引用本文： | 朱娜,刘锐萍,杜伟,苑超然. 氢化物原子荧光法测定饮料中总砷含量的不确定度评定[J]. 饮料工业, 2014, 17(10): 34-36 |
| 作者姓名： | 朱娜 刘锐萍 杜伟 苑超然 |
| 作者单位： | 秦皇岛市产品质量监督检验所/国家葡萄、葡萄酒质量监督检验中心(秦皇岛)/秦皇岛市食品质量安全监督检验中心,河北秦皇岛,066000 |
| 摘 要： | 采用现代统计学方法对氢化物原子荧光光度法测定饮料中总砷含量的不确定度进行评估。通过建立数学模型,分析整个过程的不确定度来源,推导计算、合成扩展不确定度。结果表明,当饮料中总砷含量在定量限附近时,扩展不确定度为0.00082mg/L(k=2)。可如实反映测量的置信度和准确性,在实际的工作中具有较强的实用价值。 |
| 关 键 词： | 原子荧光法 饮料 总砷 不确定度 |
Evaluation of the Uncertainty of the Determination of Total Aresenic in Beverage Using Hydride Atomic Fluorescence Spectrometry |
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| ZHU Na,LIU Rui-ping,DU Wei,YUAN Chao-ran. Evaluation of the Uncertainty of the Determination of Total Aresenic in Beverage Using Hydride Atomic Fluorescence Spectrometry[J]. Beverage Industry, 2014, 17(10): 34-36 | |
| Authors: | ZHU Na LIU Rui-ping DU Wei YUAN Chao-ran |
| Affiliation: | (Qinhuangdao Supervision ＆ Inspection Bureau on Product Quality/National Center of Supervision ＆ Inspection on Grape and Wine Quality/Qinhuangdao city food quality and safety supervision and inspection center, Qinhuangdao 066004, China) |
| Abstract: | The uncertainty of determination of total arsenic in beverage using hydride atomic fluorescence spectrometry is evaluated though modem statistical methods. The main steps include establishing mathematical model, analyzing sources of uncertainty of the whole process, deducing and calculating, and compositing the expanded uncertainty. The results showed that the expanded uncertainty is 0.00082mg/L （k=2） when the total arsenic volume is within quantity limit. To accurately reflect the confidence and accuracy has practical value in actual work. |
| Keywords: | atomic fluorescence spectrometry beverage total arsenic uncertainty |
| 本文献已被 CNKI 维普 等数据库收录！ | |