摘要
采用微波消解和火焰原子吸收光谱法对汉中市4个县区5份银杏叶片样品中的Fe、Mn、Zn、Cu的含量进行测定。结果表明:5个银杏叶片样品中4种微量元素含量(μg/g)依次分别是陕西理工学院校园Fe 365.7、Mn 24.3、Zn 13.6、Cu 8.7;汉台区Fe 283.1、Mn 20.7、Zn 10.2、Cu9.4;城固县Fe 395.0、Mn 30.5、Zn 19.3、Cu 18.0;南郑县Fe 194.4、Mn 25.0、Zn 13.0、Cu 7.7;勉县Fe 214.4、Mn 27.0、Zn 12.1、Cu 8.4;检出限(μg/mL)Fe 0.015、Mn 0.019、Zn 0.0062、Cu 0.006;回收率92%～110%。同一银杏叶片样品中各元素含量Fe>Mn>Zn>Cu,其中城固县样品中各微量元素的含量普遍较高。
The content of Fe, Mn, Zn and Cu in Ginkgo leaves were determined by microwave digestion-flame atomic absorption spectrometry. In this experiment, the content of four microelements including Fe, Mn, Zn and Cu（μg/g） was 365.7,24. 3,13. 6,8. 7 respectively in the sample collected from campus of Shaanxi University of Technology; 283. 1, 20. 7,10. 2,9. 4 respectively in Hantai ;395.0,30. 5,19. 3,18. 0 respectively in Chenggu; 194. 4,25.0,13.0,7. 7 respectively in Nanzheng and 194. 4,27. 0,12. 1,8. 4 respectively in Mianxian; the limit of determination was Fe 0. 015, Mn 0. 019, Zn 0. 0062 and Cu 0. 006μg/mL;the rate of recovery was 92%-110%. The content of four elements was Fe〉Mn）Zn〉Cu in the same samples, and the content was higher in Chenggu than others.
出处
《北方园艺》
CAS
北大核心
2012年第2期35-37,共3页
Northern Horticulture
基金
陕西省教育厅重点实验室重点科研计划资助项目(09JS048),陕西省教育厅科研基金资助项目(07JK206)
关键词
银杏叶片
微波消解
火焰原子吸收光谱法
微量元素
ginkgo leaves
microwave digestion
flame atomic absorption spectrometry
microelements
