首页> 中文期刊> 《安徽科技学院学报》 >原子吸收光谱法对金银花中五种微量元素含量的测定

原子吸收光谱法对金银花中五种微量元素含量的测定

         

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 in Honeysuckle by atomic absorption spectrometry ( AAS). Method:A concentrated nitric acid and hydrogen 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.

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