公开(公告)号：US4370060A

公开(公告)日：1983-01-25

申请号：US215198

申请日：1980-12-10

申请人： Isao Murase ,  Katsutoshi Hirose ,  Shoji Yoneya

发明人： Isao Murase ,  Katsutoshi Hirose ,  Shoji Yoneya

IPC分类号： G01N21/72

CPC分类号： G01N21/72

摘要： A flame photometric detector analyzer comprises a first conduit through which a fuel gas flows, a fuel gas nozzle connected to the first conduit to be supplied with the fuel gas to form a flame at the tip thereof, a second conduit through which a combustion supporting gas is supplied to the vicinity of the tip of the fuel gas nozzle to assist the combustion of the fuel gas discharged from the nozzle, a third conduit through which a sample gas having a measuring object component is supplied to the flame, a device for controlling the concentration of oxygen contained in the combustion supporting gas to be supplied to the flame within a range from 11.5 to 16%, and a device responsive to photoemission from the measuring object component of the sample gas introduced into the flame, thereby decreasing the effect of interference substances to obtain high accuracy of measurement even though the measuring object is of considerably low concentration.

摘要翻译： 火焰测光检测器分析仪包括燃料气体流过的第一导管，连接到第一导管的燃料气体喷嘴以供应燃料气体以在其顶端形成火焰，第二导管，燃烧支持气体 被供给到燃料气体喷嘴的前端附近以辅助从喷嘴排出的燃料气体的燃烧，将具有测量对象成分的样品气体通过该第三导管供入到火焰中的第三导管， 供给火焰的燃烧辅助气体中所含的氧的浓度在11.5〜16％的范围内，以及响应于从引入火焰的样品气体的测量对象成分的光电子发射的装置，从而降低干扰的影响 即使测量对象浓度非常低，也能获得高精度测量的物质。