氢化物原子荧光法测定汞在土壤-槟榔间的迁移

Transfer of Mercury in Soil-betelnut System with Atomic Fluorescence Spectrophotometer

目的研究四大南药之一的槟榔不同器官重金属汞的含量。方法采用氢化物-原子荧光分光光度法测定土壤及槟榔不同器官汞的含量。结果重金属在槟榔不同器官内分布为根0.0892 mg/kg,花0.113 mg/kg,叶0.0783 mg/kg和果实0.0402 mg/kg,土壤中汞迁移到槟榔根、花、叶、果实的迁移率分别为15.3%,19.4%,13.4%,6.93%。结论槟榔不同器官汞的含量花>根>叶>果实,海南地理环境有利于槟榔的规范化种植。

Objective To ascertain the Hg content of different organs of betelnut. Methods The Hg content of different organs and soil was determined by atomic fluorimetry. Results The mercury content of different organs of betelnut was roots（0. 0892 mg/ kg） , blossom （0.113 mg/kg） , leave （ 0. 0783 mg/kg） and fruits （ 0. 0402 mg/kg） respectively ; percentage of transfer of mercury from soil to roots, blossom, leave and fruits was 15.3 %, 19.4%, 13.4% and 6.93 % respectively. Conclusion The Hg content of different organs of beteluut were blossom 〉 roots 〉 leave 〉 fruits and it is good environment setting in Hainan province for GAP planting of betelnut.