| 摘要 |
PURPOSE:To emit a hydrogen flame stably by introducing a flow adjustable stabilizing gas between a cylindrical outer burner and an inner burner provided therein. CONSTITUTION:An atomizing gas Gb is introduced to atomize a sample solution 11 in a body 6 of an atomizing chamber. On the other hand, a fuel gas Gc is introduced and mixed thereinto, stored in the body 6 thereof and then, an ignition is made at the opening 1 of an outer burner. With the ignition, a large outer flame is formed at the upper part of the opening 1 of the outer burner. The outer flame is unstble due to the disturbance of outside air but at the same time, an ignition inducting opening 3 opened works to form a small inner flame at an opening 2 of the inner burner. A stabilizing gas Ga is introduced gradually into an introduction tube 4 to put out the outer flame, leaving the inner flame alone. At this point, the ignition induction opening 3 is closed and the stabilizing gas Ga is regulated whereby the inner flame becomes very stable. The burner thus arranged accomplishes the PHO molecular emission by a hydrogen reducing flame in a very stable manner. |
