摘要
[目的]建立微波消解电感耦合等离子体质谱法(inductively coupled plasma-mass spectrometry,ICP-MS)测定茵陈中22种矿质元素的分析方法,研究其矿质元素的含量、分布情况,分析其食用安全性。[方法]采用ICP-MS方法对河南18个地区茵陈中B、Na、Mg、Al、K、Ca、Ti、V、Cr、Mn、Fe、Co、Ni、Cu、Zn、As、Sr、Mo、Cd、Ba、Pb、Hg 22种元素含量进行测定和分析,并采用SPSS进行主成分分析和聚类分析进一步分析特征元素和产地聚类。[结果]22种元素线性回归方程相关系数均大于0.999 0,检出限为0.005~3.729μg/L,回收率为96.4%~105.2%,相对标准偏差为1.17%~2.35%;茵陈中含有大量的矿质元素,尤其以K(8 160.81 mg/kg)、Mg(751.24 mg/kg)和Ca(499.69 mg/kg)含量最高;Pb、As、Hg、Cd、Cr含量均符合《中华人民共和国药典》的规定;As、Hg含量均远远小于GB 2762—2022《食品安全国家标准食品中污染物限量》中新鲜叶类蔬菜的重金属含量要求,Pb、Cd含量略有超标,Cr指标超标较为严重;主成分分析结果显示,前4个主成分的累计贡献率达84.41%;聚类分析将18个地区茵陈聚为3类。[结论]不同产地茵陈中矿质元素有明显地域差别,V、Fe、Co、Mg、Al、Ti、Ni、B、Mo、Ca、Zn为其特征元素;茵陈作为药用时,安全性较高,但作为叶类蔬菜食用时,存在一定安全性风险。
[Objective]To establish an inductively coupled plasma-mass spectrometry(ICP-MS)method for determining 22 mineral elements in Artemisia capillaris,to study their content and distribution,and to analyze their edible safety.[Methods]The content levels of 22 elements,including B,Na,Mg,Al,K,Ca,Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Zn,As,Sr,Mo,Cd,Ba,Pb,and Hg,in A.capillaris samples collected from 18 regions in Henan Province were determined by ICP-MS.Principal component analysis(PCA)and cluster analysis were performed using SPSS to analyze characteristic elements and geographic clustering.[Results]The correlation coefficients of the linear regression equations for all 22 elements were above 0.9990.Limits of detection(LOD)ranged from 0.005 to 3.729μg/L.Recovery rates ranged from 96.4%to 105.2%,and relative standard deviations(RSDs)were between 1.17%and 2.35%.A.capillaris contained abundant mineral elements,with the highest levels of K(8160.81 mg/kg),Mg(751.24 mg/kg),and Ca(499.69 mg/kg).The content of Pb,As,Hg,Cd,and Cr complied with the requirements of the Pharmacopoeia of the People's Republic of China.The levels of As and Hg were far below the heavy metal limits for fresh leafy vegetables specified in GB 2762—2022 National Food Safety Standard:Limits of Contaminants in Foods.Pb and Cd slightly exceeded the limits,while Cr exceeded the limits more significantly.PCA results showed that the first four principal components accounted for 84.41%of the variance.Cluster analysis grouped the 18 regions into three categories.[Conclusion]Mineral element content in A.capillaris exhibits obvious regional differences.V,Fe,Co,Mg,Al,Ti,Ni,B,Mo,Ca,and Zn were identified as characteristic elements.When used medicinally,A.capillaris is relatively safe.However,consumption as a leafy vegetable poses certain safety risks.
作者
孙茜茜
罗蓓蓓
蒋碧伟
李娜
李向力
SUN Xixi;LUO Beibei;JIANG Biwei;LI Na;LI Xiangli(Henan Commerce Science Institute Co.,Ltd.,Zhengzhou,Henan 450002,China)
出处
《食品与机械》
北大核心
2025年第8期54-60,共7页
Food and Machinery
基金
河南省科学院基本科研业务费项目(编号:230611035)
河南省科学院创新团队项目(编号:20230104)。
关键词
茵陈
电感耦合等离子体质谱
矿质元素
主成分分析
Artemisia capillaris
inductively coupled plasma-mass spectrometry(ICP-MS)
mineral elements
principal component analysis
