梵净山鱼腥草根中锌和铁含量的测定  

Determination of Zinc and Content in Houttuynia cordata Root of Mount Fanjing

作　　者：鲁连芳[1] 何笔云 

机构地区：[1]铜仁学院材料与化学工程学院,贵州铜仁554300

出　　处：《安徽农学通报》2015年第18期23-25,共3页Anhui Agricultural Science Bulletin

基　　金：贵州省教育厅重点实验室项目"梵净山特色动植物资源"[黔教合KY字(2011)005];贵州省教育厅创新人才团队项目"梵净山特色动植物资源保护与利用"[黔教合人才团队字(2012)08号];贵州省教育厅重点学科"野生动植物保护与利用"[黔教合重点学科(2011)232]

摘　　要：该文利用分光光度法测定鱼腥草根中Zn和Fe的含量，为开发梵净山鱼腥草的食用价值和药用价值提供理论依据。结果表明：标准曲线回归方程和相关系数如下：Zn含量的标准为y=0．0486x＋0．0261，r=0．9998；Fe含量的标准曲线：y=0．20142x-0．00196，r=0．9998，回收率分别在97.3％～103．2％和96．2％-104．1％；相对标准偏差（RSD）小于5％。因此，分光光度法测定鱼腥草中的Zn和Fe的含量具有较高的灵敏度和准确度。To supply theoretical basis for exploiting the edible and medicinal value of Houttuynia cordata, the contents of Zn and Fe in H.cordata were determined by spectrophotometry.The standard curve regres- sion equations and correlation coefficients of all the determined elements were as follows：Zn：y=0.0486x＋ 0.0261,r=-0.9998;Fe：y=0.20142x-0.00196,r=0.9998;The recoveries for spiked samples are in the ranye of 97.3%- I03.2% and 96.2% ~ 104.1% with relative standard deviation（RSD）of less than 5%.The content de- termination of zinc and iron in H.cordata by spectrophotometry had higher sensitivity and accuracy.

关 键 词：鱼腥草 根 锌含量 铁含量 分光光度法 

分 类 号：S567.239[农业科学—中草药栽培]