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The aim of the study is to investigate the contents of trace element Se,Cd,Pb in three plants including burdock,ginkgol and garlic via graphite furnace atomic absorption and standard addition method. The results show that Se in burdock stem,skin and leaf are 32.40,48.63,38.10 μg/g,respectively; Cd in burdock stem,skin and leaf are 0.160 0,0.300 0,0.140 0 μg/g,respectively; Cd in burdock stem,skin and leaf are 2.020,3.960,2.410 μg/g,respectively. In the ginkgo and ginko leaf,Se contents are 17.63 and 16.91 μg/g,respectively; for Cd are 0.181 0 and 0.202 0 μg/g,respectively; for Pb are 3.572 and 4.021 μg/g,respectively. In garlic,Se,Cd and Pb are 73.900 0,6.900 0 and 0.390 0,respectively. All the standard deviations of measured results are below 2.3%,recovery rate are from 99% to 101%.
The aim of the study is to investigate the contents of trace element Se, Cd, Pb in three plants including burdock, ginkgol and garlic via graphite furnace atomic absorption and standard addition method. The results show that Se in burdock stem, skin and leaf are Cd in burdock stem, skin and leaf are 0.160 0,0.300 0,0.140 0 μg / g, respectively; Cd in burdock stem, skin and leaf are 2.020, 3.960, 2.410 μg / g, respectively. In the ginkgo and ginko leaf, Se contents are 17.63 and 16.91 μg / g, respectively; for Cd are 0.181 0 and 0.202 0 μg / g, respectively; for Pb are 3.572 and 4.021 μg / g, respectively. In All the standard deviations of measured values are below 2.3%, recovery rates are from 99% to 101%. garlic, Se, Cd and Pb are 73.900 0,6.900 0 and 0.390 0, respectively.