炮仗花各器官中金属元素的火焰原子吸收光谱法测定

Determination on Metallic Elements from Different Organs in Pyrostegia venusta(Ker-Gawl.)Miers. by Flame Atomic Absorption Spectrometry

旨在为炮仗花的种植栽培、生理生化研究及综合开发利用提供参考数据,采用火焰原子吸收光谱法对炮仗花营养器官和繁殖器官的K、Ca、Mg、Na、Fe、Mn、Zn、Cu、Cr、Ni的含量进行测定分析。结果表明,10种金属元素在各部位中的含量(平均值)高低顺序为K>Na>Mg>Ca>Fe>Mn>Zn>Cu>Ni>Cr。同一元素在炮仗花14个测定部位之间含量存在一定的差异。与一般植物相比,所测炮仗花营养器官和繁殖器官各部位中的K、Na、Mg、Ca、Fe、Mn、Zn、Cu、Ni、Cr的含量多数落在一般植物体的正常含量范围内,仅个别测定部位的个别元素含量略高或略低于一般植物体的正常含量范围。

To provide reference data for planting and cultivation, physiology and biochemistry research, and comprehensive exploitation and utilization of Pyrostegia venusta（Ker-Gawl.） Miers., the contents of K, Ca, Mg,Na, Fe, Mn, Zn, Cu, Cr, Ni were measured by the method of flame atomic absorption spectrometry（FAAS） inthe vegetative organs and reproductive organs of Pyrostegia venusta（Ker-Gawl.） Miers.. The results showedthat the order of the contents（average） of the 10 metallic elements in different parts was： K〉Na〉Mg〉Ca〉Fe〉Mn〉Zn〉Cu〉Ni 〉Cr. The content of the same element had certain differences among 14 measurement parts ofPyrostegia venusta（Ker-Gawl.） Miers.. In comparison with the general plant, the contents of K, Na, Mg, Ca, Fe,Mn, Zn, Cu, Ni and Cr in vegetative organs and reproductive organs of Pyrostegia venusta（Ker-Gawl.） Miers.mostly belonged to the normal range, except that contents of individual element of individual part were slightlymore or slightly less than that in the general plants.