Objective:To analysis five kinds of heavy metal (Cu,Pb,Cd,As,and Hg) contents of four local
southern herbs in Hainan island
(Myristica fragrans Houtt., Eugenia caryophyllata Thunb.. Alpinia
officinarum Hance., Anoectochilus roxburghii (Wall.) Lindl.Methods:The
contents of Cu,Pb and Cd were detected by Graphic Atomic Absorption Spectrophotometry. The contents of As and Hg were detected by Atomic Fluormetry.Results:Of four local southern herbs in two lands of Wanning in Hainan,the contents of Cu,Pb,Cd,As and Hg of Myristica fragrans Houtt were 6.39,0.73,0.073,4.19 and 0.25 μg/g,10.9,1.60,0.13,0.05 and 0.011 μg/g;they were 4.05,1.01,0.029,0.26 on 0.017 μg/g,(3.40),1.19,(0.046),0.067 on 0.012 μg/g in Eugenia caryophyllata Thunb.;and 188.3,7.6,0.20,0.80 on 0.022 μg/g,(180.4),6.1,0.21,0.76 on 0.021 μg/g in Alpinia officinarum Hance.;and 19.9,11.0,0.85,2.11 on 0.131 μg/g,19.6,(10.9),0.84,2.10 on 0.128 μg/g in Anoectochilus roxburghii(wall.) Lindl., respectively.Conclusion:Of four local southern herbs in two lands of Wanning in Hainan,the contents of Cd,Hg of the four local southern herbs of Hainan meets the green trade standard; The contents of Cu of Myristica fragrans Houtt.,Eugenia cartioghyllata Thunb.and Anoectochilus roxburghii(Wall.) Lindl. also meets the green trade standard; The contents of As of Myristica fragrans Houtt., Eugenia caryophyllata Thunb. and Alpinia officinarum Hance.meets the green trade standard too; but the contents of Cu and Pb of Alpinia officinarum Hance., the contents of Pb and As of Anoectochilus roxburghii (Wall.) Lindl. exceed the green trade standard.The heavy metal contents of the same herb varies litlle in different regions of Hainan island.