摘要
目的运用喷雾干燥技术进行质控样品的制备,将其应用于乳制品实验室乳粉中钙的含量测定、质量控制及检测项目的开展等。方法通过目标物的添加制备,采用分装设备进行分装和包装、均匀性及稳定性统计学评价,利用GB5009.92-2016《食品安全国家标准食品中钙的测定》中第一法进行实物质控样品赋值的研究、不确定度的确定。结果乳粉中钙元素实物质控样品定值结果为875mg/100g,质控样品的基质和企业实验室日常检测样品基质一致,检测结果更具有代表性。结论乳粉中钙元素实物质控样品满足企业实验室内部质量控样品的要求,对于企业内部相关样品中钙的测定具有重要意义。
Objective To prepare the quality control sample by spray drying technology,and apply it to the determination of calcium content,the quality control and the development of testing items in dairy products.Methods Through the addition and preparation of the target,the distribution equipment is used for the statistical evaluation of the distribution and packaging,uniformity and stability,and the first method in GB 5009.92-2016 National food safety standard-Determination of calcium in food was used to assign the actual substance control sample research and determination of uncertainty.Results The fixed value of calcium in the milk powder was 875 mg/100 g.The matrix of the quality control sample is the same as the matrix of the daily test sample in the enterprise laboratory,and the test results are more representative.Conclusion The quality control sample of calcium in milk powder meets the requirements of internal quality control samples in the enterprise laboratory,which is of great significance for the determination of calcium in relevant samples within the enterprise.
作者
林立民
马文丽
宋晓东
孙艳勤
石利凤
齐静静
富莉静
白鹏
刘萍萍
LIN Li-Min;MA Wen-Li;SONG Xiao-Dong;SUN Yan-Qin;SHI Li-Feng;QI Jing-Jing;FU Li-Jing;BAI-Peng;LIU Ping-Ping(Inner Mongolia Mengniu Dairy Industrial Co.Ltd.,Hohhot 011517,China)
出处
《食品安全质量检测学报》
CAS
2020年第18期6431-6436,共6页
Journal of Food Safety and Quality
基金
呼和浩特科技计划资助项目(2019-计-1)。
关键词
实验室质量控制
质控样品
钙
不确定度评价
laboratory quality control
quality control sample
calcium
uncertainty evaluation
