婴幼儿奶粉中维生素C检测方法的研究
目的 应用荧光分光光度计对婴幼儿乳品中维生素C的含量进行测定。方法 以婴幼儿奶粉为例, 依据国家标准GB 5413.18-2010《食品安全国家标准 婴幼儿食品和乳品中维生素C的测定》, 应用日立F-4600型荧光分光光度计测定婴幼儿乳品中维生素C的含量。结果 线性方程为Y=457.79X 28.877, 相关系数为0.9993, 方法检出限为0.1 mg/100 g。在50 mg/100 g、100 mg/100 g 两个加标水平下, 加标回收率为91.8%~101.8%, 相对标准偏差为0.36%~0.85%(n=6)。结论 此方法操作简便, 线性良好是测定食品中维生素C含量的理想方法。
Objective To determine vitamin C from infant milk power using Fluorescence Spectrophotometer. Methods Hitachi F-4600 fluorescence spectrophotometer was used to detect vitamin C content in infant milk power according to the national standard “national food safety standards determination of vitamin C in infant foods and dairy” (GB 5413.18-2010). Results The linear equation was Y=457.79X 28.877 with r2=0.9993. The detection limit was 0.1 mg/100 g. The recoveries were 91.8%~101.8% at the spiked level of 50 mg/100 g, and 100 mg/100 g with relative standard deviation of 0.36%~0.85%(n=6). Conclusion The method is sample and effective, and it is a ideal method to determine vitamin C content in foods along with its good linearity.
标题：婴幼儿奶粉中维生素C检测方法的研究
英文标题：Study on the method to determine vitamin C from infant milk power
作者：
乌尼尔 内蒙古蒙牛乳业集团股份有限公司
高娃 内蒙古蒙牛乳业集团股份有限公司
其其格 内蒙古蒙牛乳业集团股份有限公司
满都呼 内蒙古蒙牛乳业集团股份有限公司
常建军 内蒙古蒙牛乳业集团股份有限公司
宋晓东 内蒙古蒙牛乳业集团股份有限公司
中文关键词:荧光分光光度法,维生素C,婴幼儿奶粉,
英文关键词:fluorescence spectrophotometry,vitamin C,infant milk powder,
发表日期：2013-07-22
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