难熔元素铌钽铀锆在电热蒸发-等离子体发射光谱中氟化蒸发行为研究

• Vaporization Behavior of Niobium, Tantalum, Uranium and Zirconium in Graphite Furnace ETV-ICP-AES Using Polytetrafluoroethylene as Fluorinating Agent