质控图在乳粉蛋白质含量测定中的应用

Application of quality control chart in determination of protein content in milk powder

中文关键词:  质控图  食品理化分析  系统效应  随机效应

英文关键词:quality control chart  physical and chemical analysis of food  system effect  random effect

中文摘要:

      目的 分析质量控制图在实验室内乳粉中蛋白质含量检测中的应用。方法 选取稳定的标准奶粉样品, 利用GB 5009.5-2016《食品安全国家标准 食品中蛋白质的测定》检测乳粉蛋白质含量, 绘制2种类型控制图来说明质控图手段在食品理化分析中的应用。结果 统计了2016年1月到10月标准奶粉样品中蛋白质含量的测定值, 绘制相对应的质控图。利用X-图和R-图的数据分布特点来判断这段时间检测数据的可靠性, 确定食品检测过程中是否有异常情况。结论 质控图成本低而且方便易于操作, 值得基层实验室推广, 可以及时发现检测过程中各阶段存在的波动情况并及时采取措施加以控制。

英文摘要:

      Objective To analyze the application of quality control chart in determination of protein content in milk powder. Methods The stable standard milk powder samples were selected, and the protein content of milk powder was detected by GB 5009.5-2016 National standards for food safety Determination of proteins in foods. Two types of control charts were drawn to illustrate the application of quality control chart in food physical and chemical analysis. Results The statistical determination of protein content in the value of standard samples from January to October in 2016 was counted and quality control charts were draw. By using the data distribution characteristics of X- and R- diagrams, the reliability of the detection data was determined, and whether the food detection process was abnormal or not was determined. Conclusion The quality control chart is low cost, convenient and easy to operate, which is worth popularizing for primary laboratories. It can detect fluctuations in different phases of the detection process and to timely take measures to control.