摘要
提出一种新方法,将样品通过混合酸消化后应用电驱动膜萃取技术富集其中的硒元素,然后测定其含量。结果表明,该方法缩短了检测时间,减少了试剂消耗,实际样品检出限可达到0.005mg/kg,平均回收率为92.4%。通过国家标准物质验证,试验结果符合其不确定度要求。该方法适宜蔬菜水果中硒的检验。
A new method for the determination of selenium（Se）in vegetables and fruits was developed using electric membrane extraction.The effects of several factors were investigated,such as Time spent,Consumption of reagents and Detection limit of sample.The results showed that the detection limit of sample was 0.005mg/kg by spending few time and reagent.The recovery of Se was 92.4% on an average.Through the verification of the national standard reference materials,the experimental results meet the requirements of the uncertainty.The method is suitable for the detection of selenium in fruits and vegetables.
出处
《食品与机械》
CSCD
北大核心
2017年第1期51-54,共4页
Food and Machinery
基金
湖南省食品药品监督管理局食品药品安全科技项目(编号:湘食药科R201621)
关键词
蔬菜
水果
硒
样品检出限
电驱动
膜
萃取
vegetables
fruits
selenium
the sample detection limits
Electric drive
membrane
extraction
