湘西地区木通果实微量元素的测定

采用马弗炉干法灰化消化样品，火馅原子吸收法连续测定白木通Akebia trifoliata var.australis (Cieli._Kehd、三叶木通A.trifoliata(Thumb.)Koidz、木通A.quinata Decne.果实中微量金属元素，检测出K，Ca，Na，Mg，Fe，Zn，Mn，Cu等8种元素含量。3种植物果实中K，Ca，Mg含量较高(＞0．1000mg/g)，其中K元素远高于其他元素，Na，Cu含量较低(＜0．0100mg/g)。Fe，Zn，Mn的含量处于中等水平。白木通果实中K，Me，Zn，Mn 4种矿质元素高于三叶木通和木通。木通果实中Ca，Fe两种元素稍高于白木通、三叶木通。Na，Cu两种微量元素在3种果实中含量基本相拟。

Determination of Trace Elements of Fruits of Akebia Decne. in Western Hunan

Trace elements of fruits of Akebia trifoliata var. australis (Dieli.)Rehd., A.trifoliata (Thumb.)Koidz. and A.quinata Decne.were determined by cineration in the muffle furnace and the flame atomic absorption spectromery.Eight elements including K,Ca,Na,Mg,Fe,Zn,Cu and Mn were detected. The result showed that the higher contents of the trace elements were of K,Ca and Mg in the three species(>0.100 0 mg/g) ,and K was the highest. The second of that were of Fe,Zn and Mn and with Na and Cu the lowest(<0.010 0mg/g). and The contents of K,Mg,Zn,Mn, in A. trifoliata var. australis were the highest among the three species.The contents of Ca,Fe in A.quinata . were little higher than that of the others. Na and Cu were mainly similar in the three species.