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不同产地黄芪中Zn含量及溶出率的比较
Comparing Zn Content of Habit Radix Astragali in Different Locality of Growth and Zn Dissolving Rate
【摘要】 酸消解后测定Zn总量,在超声波作用下,用水或乙醇分别提取,测定Zn的溶出率,采用火焰原子吸收光谱法测定吉林、山东、山西黄芪中Zn的含量。吉林、山西黄芪含Zn差别不大,均比山东黄芪含Zn量高;对于Zn的溶出,山东黄芪使用水时的溶出率远远高于使用乙醇,而其他两地黄芪中Zn的溶出率却是乙醇略高于水。因生长土壤的不同,导致黄芪中金属元素含量的不同,其所含有机成分或纤维组织结构的差异,也会使不同溶剂对Zn离子的溶出率产生影响。
【Abstract】 The samples were acid digested,and Zn in the sample was dissolved in water or ethyl alcohol with supersonic wave,and determined by flame atomic absorption spectrophotometry.There is a little different in Zn in Jilin and Shanxi,they both are higher than Shandong’s.Zn dissolving rate with water is higher than that with ethyl alcohol in Shandong,on the contrary,in another two radix astragali.Different soil cause its difference of metallic element content.Moreover,the organic ingredient and the fiber structure difference also can cause the different dissolving rate.
【Key words】 Flame Atomic Absorption Spectrophotometry; Supersonic Wave; Radix Astragali; Zn; Dissolving Rate;
- 【文献出处】 光谱实验室 ,Chinese Journal of Spectroscopy Laboratory , 编辑部邮箱 ,2009年05期
- 【分类号】R284
- 【被引频次】3
- 【下载频次】130