不同产地白茅根中金属元素的含量测定  

Determination of Metal Elements Content in RHIZOMA IMPERATAE form Different Areas

作　　者：张华彬[1] 

机构地区：[1]江苏省滩涂生物资源与环境保护重点建设实验室盐城师范学院,江苏盐城224051

出　　处：《安徽农业科学》2011年第32期19726-19728,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(31000142);江苏省高校自然科学重大基础研究项目(07KJA18017);盐城师范学院自然科学研究项目(09YCKL014)

摘　　要：[目的]测定不同产地白茅根中金属元素的含量。[方法]采用火焰原子吸收光谱法测定中草药白茅根茎部的Fe、Cu、Zn、Mn、Ca、Mg的含量。[结果]不同地区所产白茅根中不同的金属元素的含量有所不同,如产自河南地区的白茅根中Fe、Mn的含量最高;产自安徽地区的白茅根中Cu、Ca的含量最高;产自山东地区的白茅根中Mg的含量最高;而来自于内蒙地区的白茅根中Zn的含量最高。各金属元素的回收率在92.8%～104.6%之间,RSD在0.9～1.2%之间。[结论]该方法简单、精密度好、回收率高,可用于不同产地白茅根中金属元素的含量测定。[Objective] To determine the content of metal elements in RHIZOMA IMPERATAE from different areas.[Method] The contents of meta1 elements Fe,Cu,Zn,Mn,Ca and Mg in RHIZOMA IMPERATAE were determined by flame atomic absorption spectrometry.[Result] The contents of metal elements in RHIZOMA IMPERATAE varied from region to region,for example,the RHIZOMA IMPERATAE from Henan had high contents of Fe and Mn;while that from Anhui had high contents of Cu and Ca;highest Mg content was seen in RHIZOMA IMPERATAE from Shandong,while highest Zn content was found in that from Inner Mongolia.The recoveries of each metal element ranged from 92.8% to 104.6% with RSD below 1.2%.[Conclusion] The method was simple with high precision and recoveries,therefore it could be adopted to determining the contents of metal elements in RHIZOMA IMPERATAE from different areas.

关 键 词：火焰原子吸收光谱法 白茅根(RHIZOMA IMPERATAE) 金属元素 

分 类 号：R284.1[医药卫生—中药学]