Patent ID: 6987565

Claim:
An organometallic compound vaporizing and feeding system comprising (1) a reagent container containing an organometallic compound, a carrier gas source, an in-line monitor, a carrier gas feed passageway connecting said carrier gas source to said reagent container and having a mass flow controller disposed therein for controlling the flow rate of the carrier gas, (2) an organometallic compound gas passageway connecting said reagent container to said in-line monitor for transporting the organometallic compound gas vaporized and carried by the carrier gas, (3) an ICP emission spectrometer, a sample gas passageway connecting said in-line monitor to a sample inlet of said ICP spectrometer, (4) a gas cylinder filled with a standard gas for calibration, a standard gas passageway connecting said gas cylinder to said sample gas passageway and having a gas mass flow controller disposed therein for controlling the flow rate of the standard gas, and (5) a diluent gas passageway connected to said standard gas passageway downstream of the standard gas mass flow controller for passing a diluent gas for adjusting the concentration of the calibration standard gas and having a gas mass flow controller disposed therein for controlling the flow rate of the diluent gas.