电感耦合等离子体发射光谱法检测植物油中磷脂含量的研究
Research on the Detection of Phospholipid Content in Plant Oil by Inductively Coupled Plasma Optical Emission Spectrometry
刘建国1
作者信息
- 1. 佳格投资(中国)有限公司,上海 201103;江苏华膳健康科技有限公司上海分公司,上海 201103
- 折叠
摘要
传统的《粮油检验 磷脂含量的测定》(GB/T 5537-2008)中分光光度法受限于其定量限,无法准确定量较低浓度的磷脂含量.因此,本文使用《食品安全国家标准食品中多元素的测定》(GB 5009.268-2016)中电感耦合等离子体发射光谱法检测食品中磷元素含量,并确定磷元素与磷脂换算关系,进而得出植物油中的磷脂含量.结果表明,该方法的检出限和定量限分别为 0.13 mg·kg-1 和 0.43 mg·kg-1,为植物油中磷脂检测,尤其是低含量磷脂检测提供了一种更加精确、稳定的测定方法.
Abstract
The traditional spectrophotometric method of GB/T 5537-2008 is limited by its quantitation limit and can not accurately quantify the content of phospholipids at lower concentrations.Therefore,in this paper,the inductively coupled plasma emission spectrometry in GB 5009.268-2016 was used to detect the phosphorus content in food,and the conversion relationship between phosphorus and phospholipid was determined,and then the phospholipid content in plant oil was obtained.The results showed that the limit of detection and limit of quantification of the method were 0.13 mg·kg-1 and 0.43 mg·kg-1,respectively,which provided a more accurate and stable method for the detection of phospholipids in plant oils,especially for the detection of low content phospholipids.
关键词
植物油/磷脂/电感耦合等离子体发射光谱法Key words
plant oil/phospholipids/inductively coupled plasma optical emission spectrometry引用本文复制引用
出版年
2024
NETL
NSTL
万方数据