汕头大学医学院学报2024，Vol.37Issue(3)：157-160,4.DOI:10.13401/j.cnki.jsumc.2024.03.006
微量酸消解-电感耦合等离子体质谱法测定潮汕凉茶中15种元素
Determination of 15 elements in Chaoshan herbal tea by trace acid digestion and inductively coupled plasma mass spectrometry
摘要
Abstract
Objective:To establish a method for the determination of 15 elements(Al,V,Cr,Mn,Fe,Co,Ni,Cu,Zn,As,Se,Sr,Cd,Ba,and Pb)in Chaoshan herbal tea by trace acid digestion and inductively coupled plasma mass spectrometry.Methods:The herbal tea sample(200 μL)was freeze-dried under vacuum,and then dissolved in 65%nitric acid(200 μL)and 30%hydrogen peroxide(100 μL)at 80℃for 1 h and 10 min,respectively,and then diluted to 5 mL with 3%nitric acid,and then the content of 15 elements,including Al,V,Cr,etc.,were determined by inductively coupled plasma mass spectrometry.Results:The linearity of the 15 elements was good(r>0.999),the detection limits were 0.009-14.788 μg/L,the precision ranged from 0.7%to 2.4%,and the spiked recoveries ranged from 84.0%to 125.2%.The contents of the nine elements in the nine kinds of herbal teas,such as Al,V,Cr,Mn,Fe,Ni,As,Sr,and Ba,differed from each other(P<0.05).Conclusion:A method for the determination of elements in Chaoshan herbal tea by trace acid digestion and inductively coupled plasma mass spectrometry has been established,which is simple,rapid and accurate.关键词
电感耦合等离子体质谱法/微量酸消解法/潮汕凉茶/元素Key words
inductively coupled plasma mass spectrometry/trace acid digestion/Chaoshan herbal tea/element分类
医药卫生引用本文复制引用
李烨莹,高珍情,刘桦,秦均毅,廖楷炫,袁凯松,林哲绚..微量酸消解-电感耦合等离子体质谱法测定潮汕凉茶中15种元素[J].汕头大学医学院学报,2024,37(3):157-160,4.基金项目
广东省自然科学基金(2024A1515010890) （2024A1515010890）
汕头大学大学生创新训练项目(2021422008) （2021422008）
