Experiment study taken for finding out basic method for reduction of ash content in flotation concentrate for some plant,which are: lowering down of pulp density,increasing contact time of collector and reagent addition by steps;realized thereof that,on ensuring relative high concentrate yield,its ash content reduced by three percent points.

Clinical Evaluation of the Drug of Protecting Cardiac Muscle and Administration of Drug in Different Times for Reducing Cardiotoxicity of Adrianycin;