摘要
本文对实验室内部质控样品的数据进行收集,基于质控数据测量不确定度的控制图评定方法,评估了液相色谱法测定饮料中咖啡因的测量不确定度。该方法避免了按照GUM路线对常规测量不确定度自下而上评估的繁琐过程,实用性强,操作便捷,将不确定度的评定与实验室内部的质量控制紧密结合,为化学分析领域的测量不确定度提供了新的评估方式。
This paper collects the data of internal quality control samples in laboratory, and evaluates the measurement uncertainty of caffeine in beverages by liquid chromatography based on the control chart evaluation method of measurement uncertainty of quality control data. This method avoids the tedious process of bottom-up evaluation of conventional measurement uncertainty according to the GUM route. It has strong practicability and convenient operation. It also closely combines the evaluation of uncertainty with the internal quality control of the laboratory, and provides a new evaluation method for the measurement uncertainty in the field of chemical analysis.
作者
石学敏
SHI Xue-min(SGS-CSTC Standards Technical Services(Shanghai)Co.,Ltd.)
出处
《标准科学》
2022年第5期123-127,共5页
Standard Science
关键词
质控数据
不确定度
控制图
评定
咖啡因
quality control data
uncertainty
control chart
evaluation
caffeine
