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1. 发明授权

US4022530A Device for atomizing a sample for flameless atomic absorption measurements 失效
标题翻译：用于将样品雾化的无机原子吸收测量装置
公开(公告)号：US4022530A
公开(公告)日：1977-05-10
申请号：US608558
申请日：1975-08-28
申请人： Klaus Braun , Wolfgang Chlosta , Franz Eier , Bernhard Werner Huber , Rolf Gunther Arnold Tamm
发明人： Klaus Braun , Wolfgang Chlosta , Franz Eier , Bernhard Werner Huber , Rolf Gunther Arnold Tamm
IPC分类号： G01N21/74 , H05B3/00 , G01N21/16 , G01J3/30
CPC分类号： H05B3/0014 , G01N21/74
摘要： A graphite furnace for flameless atomic absorption spectroscopy comprising a graphite sample tube with a sample port at the mid-point of its length. Electrodes supportively contact the tube ends and pass electrical heating current through the tube. The electrodes have hollow cylindrical portions which laterally envelope the tube over substantially its entire length, one of the electrodes being longer than the other and containing a radial bore in registration with the sample port. The cylindrical portions of the electrodes are disposed with complementary-shaped recesses in cooling jackets which encase all but the mid-length regions of the electrode cylindrical portions. The electrodes fit readily in the cooling jackets at room temperature due to differential expansion of these members. The sample tube, electrodes, cooling jackets and associated structure are mounted on a base with provisions for adjustment of the tube about various orthogonal axes.
摘要翻译：一种用于无焰原子吸收光谱的石墨炉，包括在其长度中点处具有样品端口的石墨样品管。电极支持接触管端，并通过电加热电流通过管。电极具有中空圆柱形部分，其在基本上整个长度上横向地包围管，其中一个电极比另一个长，并且包含与样品端口对准的径向孔。电极的圆柱形部分设置有冷却夹套中的互补形状的凹部，除了电极圆柱形部分的中间部分之外，所有凹部都包围着。由于这些构件的差异扩大，电极在室温下很容易配合在冷却夹套中。样品管，电极，冷却夹套和相关结构安装在基座上，用于调节管子关于各种正交轴线。

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