现代食品科技2017，Vol.33Issue(8)：282-288,261,8.DOI:10.13982/j.mfst.1673-9078.2017.8.041
电感耦合等离子体质谱法分析灵芝孢子油中的微量元素含量
Analysis of Trace Elements in Ganoderma lucidum Spore Oil by ICP-MS
摘要
Abstract
The analysis of trace elements in food is necessary for food safety control and nutrition evaluation.This can provide a reference for the proper evaluation of the edible and medicinal value of Ganoderma lucidum spore oil.Commercial G lucidum spore oil was digested using a microwave digestion system.Pretreatment with a nitric acid and hydrogen peroxide acid system was carried out for the digestion process.This reduced the use of acid and allowed the digestion to be more complete.The concentrations of 24 trace elements in G lucidum spore oil were determined by inductively coupled plasma mass spectrometry (ICP-MS) in collision mode.The results indicated that G lucidum spore oil was rich in calcium,phosphorus,magnesium,iron,potassium,and zinc,followed by sodium,tin,strontium,chromium,copper,boron,and manganese.Furthermore,the concentrations of the toxic trace elements lead,arsenic,and mercury were lower than the limits required for health food pollutants.For all measured elements,the linear range of mercury was 0～1 μg/L,and the linear ranges of other elements were 0～100 μg/L.The limit of detection for the instrument ranged from 0.03～7.0 μg/L.The limit of quantitation for the method was in the range of 0.1-23.33μg/kg.The recoveries ranged from 84.16％ to 107.00％,and the relative standard deviations were between 0.83％ and 4.25％ (n=6).In conclusion,the method demonstrates high precision and sensitivity,and yields reliable results.关键词
灵芝孢子油/微量元素/电感耦合等离子体质谱法Key words
Ganoderma lucidum spore oil/trace elements/inductively coupled plasma mass spectrometry引用本文复制引用
肖小丽,王晓琴,黄秀丽,梁绍成,朱文娟,甘文静,郭衍彪..电感耦合等离子体质谱法分析灵芝孢子油中的微量元素含量[J].现代食品科技,2017,33(8):282-288,261,8.基金项目
广东省省级科技计划项目(2015A030401012) （2015A030401012）
