河南农业科学Issue(6)：125-127,3.
微波消解-火焰原子吸收光谱法测定刺梨中矿质元素含量
Determination of Mineral Elements Contents in Rosa roxburghii Tratt by Microwave Digestion and Flame Atomic Absorption Spectrometry
摘要
Abstract
The microwave digestion conditions of Rosa roxburghii Tratt were optimized by orthogonal test, and then the contents of seven trace elements, including Fe, Mg, Mn, Zn, Cu, Pb and Cd in Rosa rox-burghii Tratt were determined by flame atomic absorption spectrometry ( FAAS ) . The results showed that the optimum conditions were as follows:the digestion agent was HNO3-H2SO4(4∶1),the solid-liquid ratio was 1∶20,the microwave power was 600 W,the digestion temperature was 140 ℃ and the hold time was 4 min. The detection limits were 0. 003—0. 080 μg/mL,and the recoveries of the FAAS method were between 96 . 25%—104 . 20%, the relative standard deviations ( RSD ) were lower than 3 . 04%. These figures showed that the FAAS method gave good accuracy and precision. The analytical results indicated that the contents of Fe,Mg,Zn were rich,the contents of Mn and Cu were medium,and the contents of Pb and Cd were low.关键词
微波消解/火焰原子吸收光谱法/刺梨/元素Key words
microwave digestion/FAAS/Rosa roxburghii Tratt/elements分类
化学化工引用本文复制引用
王振伟,张品品..微波消解-火焰原子吸收光谱法测定刺梨中矿质元素含量[J].河南农业科学,2015,(6):125-127,3.基金项目
河南省教育厅自然科学基金项目(12B530003) （12B530003）
黄河水利职业技术学院科研基金项目(2013KXJS011) （2013KXJS011）
