摘要
[目的]测定竹笋中的18种元素.[方法]利用微波消解-电感耦合等离子质谱(ICP-MS)方法同时测定竹笋中Zn、Ca、Fe、Cu、Al、Mn、Mg、B、Ba、Cr、Ni、As、Se、Mo、Ag、Cd、Sb、Pb这18种元素.[结果]该方法检出限在0.004～1.078 μg/L,相对标准偏差RSD值在1.05％ ～3.79％,回收率在88.1％～106.5％,竹笋中富含有益元素,有毒元素含量均在国家食品安全限量范围内.[结论]该方法简单快速,灵敏度和准确度高,满足竹笋18种元素的同时测定.
Abstract
[Objective] 18 elements in bamboo shoot were comprehensively analyzed.[Method] Simultaneous determination method of inductively coupled plasma mass spectrometry(ICP-MS) with microwave digestion of 18 elements including Zn,Ca,Fe,Cu,Al,Mn,Mg,B,Ba,Cr,Ni,As,Se,Mo,Ag,Cd,Sb,Pb in bamboo shoot was established.[Result] The detection limit was in a range of 0.004-1.078 μg/L,the RSD was in a range of 1.05％-3.79 ％,and the recovery rate was in a range of 88.1％-106.5％.Bamboo shoot were rich in beneficial elements,toxic elements were lower than the national security limited values.[Conclusion] This method was simple,fast,highly reliable and precise,which could meet the requirements for simultaneous determination of 18 elements in bamboo shoot.
基金项目
浙江省科技厅公益技术应用研究(分析测试类)项目(2014C37095)
浙江省德清竹产业科技特派员项目()
国家科技期刊平台
NSTL
维普
万方数据