安徽农业科学2011，Vol.39Issue(20)：12566-12568,3.
悬浮液进样-火焰原子吸收光谱法测定桑叶中的微量元素
Determinations of Trance Elements in the Mulberry Leaves by the Suspension Sampling-Flame Atomic Absorption Spectrometry
摘要
Abstract
[Objective] The research aimed to determine the trace elements in the mulberry leaves by the suspension sampling - flame atomic absorption spectrometry. [ Method] After the drying, grinding and sifting, the mulberry leaves sample was suspended in 0.30% agar solution. It became the homogeneous suspension by the ultrasonic dispersion. The flame atomic absorption spectrometry was used to determine the content of trace elements Fe, Mn, Zn, Mg and Ca in the suspension. [Result] The best stabilizer of mulberry leaves sample suspension was 0.30% agar solution, and the optimal added amount of agar solution was 40 ml. The ultrasonic treatment could greatly increase the stability of suspension. 100 ml LaCl3 solution could eliminate the chemical interference. The average values of Fe, Mn, Zn, Mg and Ca in the suspension were respectively 582.32, 70.97, 32.54, 3 977.50 and 3 279.75 μg/g. The recovery rates of every trace element were during 96.4% -105.4%. [Conclusion] The method was fast, easy and had the good precision and accuracy.关键词
悬浮液进样/火焰原子吸收光谱法/桑叶/微量元素Key words
Suspension sampling/ Flame atomic absorption spectrometry/ Mulberry leaves/ Trace element分类
农业科技引用本文复制引用
王洪海,王奎萍,石光辉,李莉,朱爱梅..悬浮液进样-火焰原子吸收光谱法测定桑叶中的微量元素[J].安徽农业科学,2011,39(20):12566-12568,3.基金项目
江苏省大学生实践创新基金项目(604). （604）
