The balsam pear dry sample was pretreated with microwave digestion.Using the flame atomic absorption spectrophotometry,the content of four trace metal elements of Ca,Mg,Fe,Zn of balsam pear were determined.The content of metal element was respectively 3843.50μg/g,2545.492μg/g,93.3415μg/g,and 77.685μg/g.RSD is from 0.19%to 0.85%.Detection limit of each element is from 0.0020μg·mL-1 to 0.0703μg·mL-1.Correlation coefficient is from 0.9927 to 0.9997.The recovery of standard addition is from 94.40%to 102.92%,This method was easy,quick,economical and efficient.
关键词
苦瓜/微波消解法/微量金属元素/火焰原子吸收光谱法
Key words
the balsam pear/microwave digestion/trace metal element/flame atomic absorption spectrophotom-etry
维普
万方数据