Heavy Metal Contents in Four Mosses at Two Copper Mines in Northwest Guizhou,China
黔西北两铜矿4种藓类植物重金属元素分析

The Bakou and Changqinggou copper mines are both Emeishan basalt-type copper deposits.The copper is located mainly in the top and the upper part of the Permian Emeishan basalt.By using a Analyst 800 atomic absorption spectrophotometer,AF-640 atomic fluorescence spectrophotometer,and Optima 5300 V inductively coupled plasma optical emission spectrophotometer,we analyzed the contents of eight elements (Cu,Zn,Ca,Mg,Cd,Pb,Hg,and As) in Anoectangium thomsonii Mitt.,Oxystegus cylindricus (Brid.) Hilp.,Barbula rig...