Methods for chemical analysis of titanium concentrate(rock minerals)—The bismuth phosphomoly bdate blue spectrophotometric method for the determination of phosphorus content
Methods for chemical analysis of titanium concentrate(rock minerals)—The titanium chloride-potassium dichromate volumetric method for the determination of total iron content
Methods for chemical analysis of titanium concentrate(rock minerals)—The ferric ammonium sulfate volumetric method for the determination of titanium dioxide content