霍山石斛·河南石斛金属元素含量比较研究  

Comparative Study on the Metal Elements in Dendrobium huoshanense and Dendrobium henanese

作　　者：陈乃东[1,2,3] 程艳[1] 陈乃富[1] 金晖[1] 

机构地区：[1]皖西学院生物与制药工程学院,安徽六安237012 [2]皖西中药与天然药物工程技术研究中心,安徽六安237012 [3]安徽医科大学,安徽合肥230032

出　　处：《安徽农业科学》2015年第18期316-317,共2页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金(81274021);中国博士后研究面上项目(2014M551791);安徽省人事厅博士后研究项目"霍山石斛免疫调节药效物质基础研究";皖西学院校级质量工程项目(2015wxxy42);皖西学院本科生优秀毕业设计(论文)培育计划立项项目(pyjh2014060)

摘　　要：[目的]研究霍山石斛、河南石斛不同部位的金属元素含量,为霍山石斛、河南石斛质量评价与规范化栽培提供依据。[方法]利用原子分光光度计、火焰法测定霍山石斛、河南石斛中金属含量。[结果]石斛样品中根、茎、叶金属铜、铅、铬、钙、锌、钡质量分数变幅分别为2.05~7.66、0.11~0.25、4.11~11.24、275.50~615.78、3.45~6.87、70.86~371.92 mg/kg;重金属元素铜和铅在规定限度范围内;不同药用部位金属含量存在差异。[结论]霍山石斛、河南石斛含有多种人体生长的必需金属元素,重金属铜、铅含量整体上是安全的;霍山石斛茎部位的金属总量高于根和叶。[Objective ] To compare the metal element contents in D. huoshanense and D. henanese, and to provide scientific basis for the quality evaluation and standardized cultivation of Dendrobium. [ Method] The metal element contents of the samples were determined by Fire Atomic Absorption Spectroscopy Method. [Result] The average mass fractions of Cu, Pb, Cr, Ca, Zn and Ba in the different medicinal parts were 2.05 - 7.66, 0.11 - 0.25, 4.11 - 11.22,275.50 - 615.78, 3.45 - 6.87, 70.86 - 371.92 mg/kg respectively. The Cu and Pb con- tents were in prescribed limits. The six metal element contents were varied among different medicinal parts of the two investigated Dendrohium samples in our experimental conditions. E Conclusion J There were varieties of essential mental elements in D. huoshanense and D. henanese, and the Cu and Pb contents were safe as a whole, and there were richer mental element contents in. the stem than those in the root and leaf.

关 键 词：霍山石斛 河南石斛 火焰法原子吸收光谱法 金属元素 含量 

分 类 号：S567.239[农业科学—中草药栽培] R284.2[农业科学—作物学]