第4代太空防风的X射线荧光研究

利用我国发射的神舟三号飞船搭载防风种子,回收后在地面上筛选繁育,定向培育成新品种获得优良的种质资源。本文用X射线荧光光谱法(XRF)对枝叶和产量等方面占优势的第4代太空及地面组防风药用部分的元素含量进行测定和对比分析。两组样品的元素种类基本相同,但多种矿质元素含量是太空组>地面组。尤其是太空防风中与性味功效和归经相关的Zn,Fe,Mn和Cu含量比地面组分别提高到4.39,1.23,0.84和0.90倍。太空防风矿质元素指标明显优化。XRF方法可以从整体上对中药材的元素进行测定分析和研究。利用太空搭载防风种子可以筛选出多种元素优化的防风药材新品种。

Research on the Fourth Generation of Saposhnikovia Divaricata by XRF

To cultivate oriented new varieties,Saposhnikovia divaricata seeds were carried by Shenzhou "3" satellite and filtered when they were being brought back. In the present paper,X-ray fluorescence(XRF) was used to mensurate and analyze the contents of elements of the two samples from the ground group and the 4th generation of space Saposhnikovia divaricata(space group)that have advantages in branches and leaves and yields.The contents of the main mineral elements in the two samples are the same basically.But the contents of the elements Zn,Fe,Mn and Cu from the outer group are higher than the ground group.Especially the contents of Zn,Fe,Mn and Cu concerning the curative effect in the space group increase 4.39,1.23,0.84 and 0.9 times as compared to the ground group.In the space group the contents and proportions of the mineral elements are improved and optimized.XRF method can be used for overall element analysis of and research on Chinese herbal medicines.Space flight breeding is an effective method for the selection of new Saposhnikovia divaricata breed.