摘要
为评定高效液相色谱法测定蛋白粉中维生素E含量结果的不确定度,本文按照《食品安全国家标准 食品中维生素A、D、E的测定》(GB 5009.82—2016)测定功能型蛋白粉中维生素E的含量,从标准溶液配制、试样的处理过程、测量重复性等方面分析和量化各不确定度分量,并计算合成标准不确定度和扩展不确定度。结果表明,该功能型蛋白粉中维生素E含量为8.22 mg/100 g,扩展不确定度为0.22 mg/100 g,其中k=2,P=95%。结果表述为(8.22±0.22)mg/100 g。
In order to evaluate the uncertainty of the results of the determination of vitamin E content in protein powder by HPLC,the content of vitamin E in functional protein powder was determined according to GB 5009.82—2016,the uncertainty components were analyzed and quantified from the aspects of standard solution preparation,sample treatment process and measurement repeatability,and the synthetic standard uncertainty and expanded uncertainty were calculated.Results show that the content of vitamin E in the functional protein powder was8.22 mg/100 g,and the expanded uncertainty was 0.22 mg/100 g,where k=2,P=95%.The result was expressed as (8.22±0.22) mg/100 g.
作者
薛红玮
罗伟敏
沈棚
XUE Hongwei;LUO Weimin;SHEN Peng(Shanghai Yingjia Biotechnology Co.,Ltd.,Shanghai 201703,China;Inkea Health Technology(Guangdong)Co.,Ltd.,Dongguan 523808,China;Shanghai Kangnuo Zhixin Food Co.,Ltd.,Shanghai 201703,China)
出处
《食品安全导刊》
2022年第7期62-66,共5页
China Food Safety Magazine
关键词
不确定度
维生素E
功能型蛋白粉
高效液相色谱
uncertainty
vitamin E
functional protein powder
high performance liquid chromatography
作者简介
薛红玮(1984-),女,河北邢台人,硕士,工程师。研究方向:功能型食品的研究与开发。
