论文部分内容阅读
目的:测定甘肃不同产地红芪中微量元素含量,为有效控制其质量提供基础性数据。方法:利用湿消化法处理样品,采用火焰原子吸收光谱法测定不同产地红芪样品中铁,铜,钙,锰,锌,镁,镉,铬,钴,钠,锂,镍,钾元素含量,并进行方差分析和聚类分析。结果:红芪中钙、钾、锌、锰、钴、锂、铬、镁、铜、铁、钠、镍的含量范围为2.770 1~3.411 6,16.695 9~18.753 5,2.732 2~6.482 0,0.797 6~0.994 4,0.067 0~0.071 6,0.341 2~0.423 0,0.059 9~0.068 9,88.725 8~99.263 5,0.185 6~0.467 3,0.865 9~2.607 1,20.758 5~27.021 8,0.196 6~0.232 4μg·g~(~(-1))。其中镉元素未检出,红芪中各元素平均含量高低顺序为镁>钠>钾>锌>钙>铁>锰>锂>铜>镍>钴>铬>镉;32个产地红芪中铁、钾、锌、镍、钠、镁、锰、铬元素含量之间均具有显著性(P<0.05)差异,而铜、钙、锂、钴4种元素的含量之间没有显著性差异;32份样品聚为4类,大多数栽培红芪聚第一类,野生红芪聚为第二类。结论:红芪中微量元素含量的差异性不仅与产地有关,而且与红芪是野生品、栽培品有关。
Objective: To determine the contents of trace elements in Radix Hedysari of different habitats in Gansu and provide basic data for effective control of their quality. Methods: The contents of iron, copper, calcium, manganese, zinc, magnesium, cadmium, chromium, cobalt, sodium, lithium, nickel and potassium in samples of Radix Astragali collected from different areas were determined by flame atomic absorption spectrometry Analysis of variance and cluster analysis. Results: The contents of Ca, K, Zn, Mn, Co, Li, Cr, Mg, Cu, Fe, Na and Ni in Radix Astragali were between 2.770 1 and 3.411 6 and 16.695 9 to 18.753 5 and 2.7232 2 to 6.482 0, 0.797 6 to 0.994 4,0.067 0 to 0.071 6,0.341 2 to 0.423 0,0.059 9 to 0.068 9,88.725 8 to 99.263 5,0.185 6 to 0.467 3,0.865 9 to 2.607 1,20.758 5 to 27.021 8 to 0.196 6 ~ 0.232 4μg · g ~ (-1)). Among them, the content of cadmium was not detected, and the order of the average content of each element in Radix Hedysari was magnesium> sodium> potassium> zinc> calcium> iron> manganese> lithium> copper> nickel> cobalt> chromium> cadmium; There was a significant difference (P <0.05) between potassium, zinc, nickel, sodium, magnesium, manganese and chromium contents, but there was no significant difference between copper, calcium, Samples clustered into four categories, most of the cultivation of red gathers first class, wild ginseng poly for the second category. Conclusion: The content of trace elements in Radix Astragali is not only related to the origin, but also to wild and cultivated Radix Hedysari.