目的探讨陕南燃煤型砷中毒病区内人群发硒含量与砷中毒病情的关系。方法以陕南燃煤型砷中毒病区4个高砷暴露村为研究区，并选择附近......

Vanadium extraction from stone-coal was investigated by oxygen pressure acid leaching and solvent extraction. The minera......