摘要
采用微波消解法(6mLHNO3和1mLH2O2)对腊梅花样品进行前处理,优化了实验条件,建立了电感耦合等离子体发射光谱仪(ICP-OES)同时测定腊梅花样品中14种无机元素的方法。实验结果表明:腊梅花中K的含量高达2.47%;Ca、Mg的含量分别为0.30%和0.18%;Fe、Al、Na、Zn、Cu、Mn、Ba、B、Ni、Pb、Cr的含量为微量。待测元素的方法检出限为0.23mg/kg^1.4mg/kg;加标回收率在96.1%~110.0%之间,相对标准偏差小于4%。
The method for determination of 14 inorganic elements in Chimonanthus praecox by inductively coupled plasma optical emission spectrometry（ICP-OES） was researched.The Chimonanthus praecox samples were digested by closed-vessel microwave（6 mL HNO3and 1 mL H2O2）digestion system.The condition of instrument was optimized.The experimental results showed that the content of Potassium was as high as 2.47 %;Calcium,Magnesium were 0.30 % and 0.18 %,respectively;Iron,Aluminium,Copper,Zinc,Sodium,Manganese,Barium,Boron,Nickel,Lead and Chromium were trace levels.The detection limit of method for elements was in range of 0.23 mg/kg-1.4 mg/kg,the recovery was from 96.1 % to 110.0 %,and the relative standard deviation was less than 4 %.
出处
《食品研究与开发》
CAS
北大核心
2014年第8期73-75,共3页
Food Research and Development
基金
华东理工大学分析测试中心专项资金资助
关键词
ICP-OES
微波消解
腊梅花
无机元素
ICP-OES
microwave digestion
chimonanthus praecox
inorganic elements
