Abstract: A graphite furnace was employed as a vaporizer for sample introduction into a inductively coupled plasma(ETV-ICP-AES).The interface design, the effect of geometry and volume of the vaporizer including "insert platform" were studied.And a piece of graphite rod was put from the end of the graphite tube to minimize "dead volume", only allowing carrier gas passed through the arc tunnel between the tube and the rod.The temperature and its distribution inside the vaporizer were also explored.Finally, the platform vaporization and wall vaporization were discussed.

Key words: Vaporizer, Electrothermal Vaporization, Inductively Coupled plasma atomic emission spectroscopy