Qing, Xian [Concentrations and distribution characteristics of PCDD/Fs in spent etching solution and its copper salt recycling products]. [electronic resource] - Huan jing ke xue= Huanjing kexue Feb 2013 - 642-6 p. digital Publication Type: Journal Article ISSN: 0250-3301 Subjects--Topical Terms: ChinaCopper--chemistryEnvironmental MonitoringEnvironmental Pollutants--analysisIndustrial Waste--analysisPolychlorinated Dibenzodioxins--analogs & derivativesRecyclingSolutions