期刊论文

Determination and statistical comparison of trace elements in rapeseed oil from different producing areas by ICP-MS /MS

中文

中国油脂

1003-7969

2020

45

6

120-125

10.12166/j.zgyz.1003-7969/2020.06.025

国家自然科学基金项目(81603400) 长沙市杰出创新青年培养计划(kq1802017) 长沙市科技计划项目(kq1901067) 湖南省中医药研究院科研项目(201805)。

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研究菜籽油中微量元素含量的分布规律及其与菜籽油产地之间的关系。采用电感耦合等离子体串联质谱(ICP-MS /MS)法测定了15种菜籽油中Be、Ti、Cr、Mn、Fe、Co、Ni、Cu、Zn、As、Se、Sr、 Cd、Ba、Hg、Pb 16种微量元素的含量,将测定数据进行标准化处理后利用SPSS主成分分析与聚类分析对微量元素的分布进行评价。结果表明:菜籽油经煤油稀释后直接进样分析,在MS /MS模式下,分别选择O_2和NH_3 /He为反应气,利用CRC技术消除了质谱干扰; Fe、Mn、Cu、Zn、Sr、Ba在0 ~ 500 μg /kg范围内相关系数大于等于0.999 8,其余10种分析元素在0 ~ 50.0 μg /kg范围内相关系数大于等于0.999 6,16种元素的检出限为1....

The distribution of trace elements in rapeseed oil and the relationship between trace elements and the producing areas of rapeseed oils were investigated. The 16 trace elements of Be,Ti,Cr,Mn,Fe,Co,Ni,Cu,Zn,As,Se,Sr,Cd,Ba,Hg and Pb in the 15 rapeseed oil samples were determined by inductively coupled plasma tandem mass spectrometry(ICP-MS /MS) . SPSS principal component analysis and cluster analysis were applied to evaluate the distribution of trace elements of the determination results after data standardizing. The results showed that the rape...