论文部分内容阅读
目的:建立一种用电感耦合等离子体光谱法测定胀果甘草中微量元素及含量的方法。方法:用硝酸—高氯酸进行消解,电感耦合等离子体原子发射光谱法(ICP—AES)同时测定胀果甘草样品中Al、B、Ba、Ca、Co、Cr、Li、Mg、Mn、Cu、Fe、Ni、P、Sr、Ti、V、Zn等多种微量元素。结果:其相对标准偏差为0.37%~2.71%,回收率为95.8%~101.3%。研究表明胀果甘草中含有比较丰富的钙、镁、磷元素,微量元素在植物药中可能起到一定的药理作用。结论:ICP—AES法测定简单,快速,灵敏度高,准确度高,且多元素同时测定,适用于胀果甘草中微量元素的测定。
Objective: To establish a method for the determination of trace elements and contents in Glycyrrhiza uralensis Fisch by inductively coupled plasma spectroscopy. METHODS: Digestion with nitric acid-perchloric acid, simultaneous determination of Al, B, Ba, Ca, Co, Cr, Li, Mg, Mn, and Cu in licorice samples by inductively coupled plasma atomic emission spectrometry (ICP-AES) , Fe, Ni, P, Sr, Ti, V, Zn and other trace elements. Results: The relative standard deviation was 0.37%~2.71%, and the recovery rate was 95.8%~101.3%. Studies have shown that G. biloba contains abundant calcium, magnesium and phosphorus elements, and trace elements may play a pharmacological role in plant medicine. Conclusion: The ICP-AES method is simple, rapid, sensitive, accurate, and simultaneous determination of multiple elements. It is suitable for the determination of trace elements in Glycyrrhiza.