摘要
目的:采用原子吸收分光光度法检测不同产地金银花中的Cu、Mg、Ca、Fe、Mn五种微量元素的含量。方法,用浓硝酸和双氧水作为消解试剂,对比电炉消解和微波消解,并用原子吸收分光光度法对上述五种元素进行含量测定。结果,微波消解的效果要比电炉消解的效果好,凤阳的金银花微量元素含量为Ca>Mg>Mn>Fe>Cu,蚌埠的金银花的含量为Ca>Mg>Fe>Mn>Cu,且凤阳金银花和蚌埠金银花中的铜、锰含量差不多,但是凤阳金银花中的钙、锰、铁的含量则比蚌埠金银花中的要高。结论:本试验方法样品处理简单,准确度高,精密度好,适合于两种金银花中微量元素的测定。
Objective： It is to determine trace elements （AAS）. Method： A concentrated nitric acid and hydrogen in Honeysuckle by atomic absorption spectrometry peroxide （4：1 V/V） mixture solution was used to di- gest the horeysnckle and a flame atomic absorption spectrometric （FAAS） was applied to determine the elements including Cu,Mg,Ca,Fe and Mn. Results： the digestion ratio of microwave was higher than other methods and it was used for digestion of trace elements in Honeysuckle. The content of trace elements come from Fengyang Hon- eysuckle was Ca 〉 Mg 〉 Mn 〉 Fe 〉 Cu, the content of trace elements from Bengbu Honeysuckle was Ca 〉 Mg 〉 Fe 〉 Mn 〉 Cu, but calcium, manganese, iron content of Fengyang Honeysuckle is higher than that of Bengbu hon- eysuckle. The test method of sample processing is simple, highly accurate, good precision suitable for Honey- suckle about five kinds of trace elements.
出处
《安徽科技学院学报》
2015年第3期51-54,共4页
Journal of Anhui Science and Technology University
基金
安徽省教育厅优秀人才基金项目(2012SQRL147)
安徽省教育厅自然科学项目(KJ2013047)
安徽科技学院自然科学研究项目(ZRC2014438)
关键词
原子吸收分光光度法
金银花
微量元素
Atomic absorption spectrometry
Honeysuckle
Trace elements
