乌拉尔甘草中6种微量元素的初级形态分析  

Primary Speciation Analysis of Six Kinds of Microelements in Glycyrrhiza uralensis Fisch.

作　　者：梁新华[1,2] 李梦菊 王俊[2] 郑彩霞[1] 

机构地区：[1]北京林业大学生物科学与技术学院,北京100083 [2]宁夏大学生命科学学院,宁夏银川750021 [3]宁夏银川市唐徕回民中学,宁夏银川750001

出　　处：《安徽农业科学》2009年第36期17965-17966,17973,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(30600806);宁夏回族自治区高等学校科学技术研究项目(NJ0626)

摘　　要：[目的]分析乌拉尔甘草中6种微量元素的初级形态,为阐明甘草药效原理和探讨人工种植甘草质量调控提供理论依据。[方法]按照传统煎煮法对人工种植乌拉尔甘草中Cu、Zn、Fe、Ca、Mg、Mn 6种元素进行提取;用微孔滤膜分离提取液中的可溶态与悬浮态;采用火焰原子吸收光谱法对可溶态中的6种元素进行测定。[结果]甘草中6种元素的总提取率在1.71%～60.06%;浸留比在0.0183～1.6820;6种元素中Zn的浸留比最大为1.68,是甘草中作用最大的元素或最特征的元素;火焰原子吸收光谱法对各元素的加标回收率在95.72%～103.15%,相对标准偏差小于2.38%。[结论]火焰原子吸收光谱法准确性高,用以分析乌拉尔甘草中微量元素的初级形态是可行的。[Objective]The aim was to analyze the primary speciation of 6 microelements in Glycyrrhiza uralensis Fisch.and provide theoretical basis for explaining pharmacodynamic principle of liquorice and discussing quality control of liquorice planting.[Method]The six elements, Cu,Zn,Ca,Fe,Mg,Mn in roots of G.uralensis Fisch.were extracted based on traditional analytical flowchart program and were separated into water-soluble state and suspension state by micro porous filtering film.The elements in water-soluble state were detected by flame atomic adsorption spectrophotometry（FAAS）.[Result]The results showed that extractive rates of the elements were in the range of 1.71%-60.06%,and immerse-residue ratio in 0.018 3 - 1.682;the results also indicated that the immerse-residue ratio of Zn was biggest （1.68）,Zn played an important medical role and might be considered as the best characteristic element in G.uralensis Fisch.;the recoveries of the elements were ranged from 95.72%- 103.15%and relative standard deviations（RSD） were less than 2.38%.[Conclusion]Because of its high accuracy,FAAS method is feasible for analyzing primary speciation of microelements in G.uralensis Fisch..

关 键 词：乌拉尔甘草 微量元素 火焰原子吸收光谱法 初级形态分析 

分 类 号：S567.71[农业科学—中草药栽培]