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用火焰原子吸收光谱法对蚌埠市3个市区银杏叶片样品中的Fe、Zn、Mn、Cu Cd的含量进行测定。结果表明:银杏叶片样品中5种微量元素含量(Lg/g)依次分别是蚌埠学院校园Fe 394.2、Zn 22.4、Mn 12.7、Cu 8.5、Cd 5.4;龙子湖公园Fe 198.9、Zn 24.7、Mn 10.8、Cu 9.2、Cd 6.1;珠园Fe 395.6、Zn 32.5、Mn 23.5、Cu 18.9、Cd 18.9;回收率97.8%—102.1%。同一样品中银杏叶片各元素含量Fe>Zn>Mn>Cu>Cd,其中珠园样品中各微量元素的含量普遍较高。
The contents of Fe, Zn, Mn, Cu and Cd in ginkgo leaf samples of three urban areas in Bengbu were determined by flame atomic absorption spectrometry. The results showed that the contents of five trace elements (Lg / g) in the leaves of Ginkgo biloba samples were respectively Fe 394.2, Zn 22.4, Mn 12.7, Cu 8.5 and Cd 5.4 on the campus of Bengbu College, Fe 198.9, Zn 24.7 and Mn 10.8 , Cu 9.2, Cd 6.1; Zhuyuan Fe 395.6, Zn 32.5, Mn 23.5, Cu 18.9, Cd 18.9; recovery 97.8% -102.1%. In the same sample, the content of each element in the leaves of Ginkgo biloba was Fe> Zn> Mn> Cu> Cd, and the contents of trace elements in the samples of the garden were generally high.