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1. 发明授权

US4111051A Sampling procedure and device for flameless atomic absorption spectroscopy 失效
标题翻译：无取样原子吸收光谱的采样程序和装置
公开(公告)号：US4111051A
公开(公告)日：1978-09-05
申请号：US688789
申请日：1976-05-21
申请人： Rolf Gunther Arnold Tamm , Bernhard Werner Huber
发明人： Rolf Gunther Arnold Tamm , Bernhard Werner Huber
IPC分类号： G01N1/00 , G01N1/14
CPC分类号： G01N35/1095
摘要： An automatic sampling apparatus particularly adapted for flameless atomic absorption spectrometers has a turntable carrying a ring of sample containers. The turntable is rotatably mounted on a base plate which in turn is mounted for limited pivotal movement on a support. A rinse station for a sample probe is provided on the base plate adjacent the periphery of the turntable. A sample probe in the form of an elongated tube angled at one end to form a pipette-like tip is mounted for swinging movement about a transverse axis and concomitant rotation about its longitudinal axis so that, at both limits of movement about the transverse axis, the probe tip is directed generally downwardly. At one limit of probe displacement, and with the base plate at one limit of pivotal movement, the probe tip is immersed in, and discharges, rinse liquid at the rinse station; by pivotal movement of the base plate, one of the sample containers positionally replaces the rinse station and the probe tip enters the container to aspirate sample liquid therefrom. The turntable is indexed each time the base plate is pivoted from one limit of its movement to the other and back so that the rinse station is replaced sequentially by each of the sample containers. When the probe is swung to the other limit of its displacement, the tip deposits sample liquid in a sample cell, e.g., the sample port of a heated graphite atomizer. The flow of rinse liquid, and aspiration and deposit of sample liquid, is effected by means of a plurality of pumps and conduits connected in a series flow communication between a source of rinse liquid and the end of the probe tube remote from the tip. The pumps are actuated in timed relation to the movement of the probe, turntable and base plate and include an air pump which introduces a slug of air to separate the sample from the rinse liquid which normally occupies the entire fluid flow system (i.e., pumps and conduits) except for the tip end of the probe.

2. 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。

3. 发明授权

US3982834A Device for atomization of a sample 失效
标题翻译：样品雾化装置
公开(公告)号：US3982834A
公开(公告)日：1976-09-28
申请号：US608514
申请日：1975-08-28
申请人： Rolf Gunther Arnold Tamm
发明人： Rolf Gunther Arnold Tamm
IPC分类号： G01N21/74 , H05B3/00 , G01J3/30 , G01N21/16
CPC分类号： G01N21/74 , H05B3/0014
摘要： A heated graphite sample-atomizer for flameless atomic absorption spectroscopy in which a graphite sample tube is coaxially disposed within a pair of generally cylindrical electrode members which jointly envelope substantially the entire tube and define therewith a cylindrical flow passage for inert gas. The electrode members make electrical contact with respective ends of the tube to enable passage of a heating current therethrough. At least the outer end portions of the electrode members are telescoped within respective cooling jackets, the external cylindrical surfaces of the electrode members making a snug fit with complementary internal cylindrical surfaces of the cooling jackets at room temperature. The respective thermal expansion coefficients of the materials of the electrode members and cooling jackets are such as to create a press fit between the electrode members and cooling jackets under operating conditions.
摘要翻译：一种用于无焰原子吸收光谱的加热石墨样品雾化器，其中石墨样品管同轴地设置在一对大致圆柱形的电极构件中，该一对大致圆柱形的电极构件基本上围绕整个管并且限定用于惰性气体的圆柱形流动通道。电极构件与管的相应端部电接触以使加热电流能够通过。至少电极构件的外端部分可伸缩在相应的冷却夹套内，电极构件的外圆柱形表面在室温下与冷却夹套的互补内圆柱表面贴合配合。电极部件和冷却套的材料的各自的热膨胀系数是这样的，以便在操作条件下在电极部件和冷却套之间形成压配合。

4. 发明授权

US4094607A Apparatus for flameless atomization of a sample for atomic absorption analysis 失效
标题翻译：用于原子吸收分析的样品的无焰雾化装置
公开(公告)号：US4094607A
公开(公告)日：1978-06-13
申请号：US779559
申请日：1977-03-21
申请人： Rolf Gunther Arnold Tamm
发明人： Rolf Gunther Arnold Tamm
IPC分类号： G01N21/74 , G01J3/30 , G01N21/16
CPC分类号： G01N21/74
摘要： The present invention is directed to apparatus for flameless atomization of a sample for atomic absorption analysis, which includes a sample tube of electrically conductive material having a transverse bore offset axially towards one end of the tube with respect to the transverse central plane, an electrode arrangement including portions in electrical contact with the sample tube at spaced locations for passing an electrical current through the tube to cause heating thereof, and a system for generating an inert gas flow inwardly from the opposite end of the sample tube and outwardly through the transverse bore.
摘要翻译：本发明涉及用于原子吸收分析的样品的无焰雾化装置，其包括导电材料的样品管，其具有相对于横向中心平面轴向朝向管的一端偏移的横向孔，电极装置包括在间隔位置处与样品管电接触的部分，用于使电流通过管以引起其加热;以及用于从样品管的相对端向内穿过所述横向孔向内产生惰性气体的系统。

5. 发明授权

US4008963A Method of and device for the analysis of samples by means of flameless atomic absorption spectroscopy 失效
标题翻译：通过无焰原子吸收光谱分析样品的方法和装置
公开(公告)号：US4008963A
公开(公告)日：1977-02-22
申请号：US555723
申请日：1975-03-06
申请人： Bernhard Werner Huber , Rolf Gunther Arnold Tamm
发明人： Bernhard Werner Huber , Rolf Gunther Arnold Tamm
IPC分类号： G01N21/74 , G01J3/42
CPC分类号： G01N21/74
摘要： A method of atomization of a sample for analysis by atomic absorption spectroscopy in which the sample is progressively heated to drying, ashing and atomization temperatures by subjecting it sequentially to discrete ambient temperature increments.A preferred form of apparatus for carrying out the method takes the form of a graphite fabric conveyor belt which carries the sample substance and travels transversely through three hollow cylindrical graphite tubes disposed in spaced justaposition with longitudinal axes parallel. The belt passes through each tube in sequence, by way of pairs of aligned longitudinal slots in the sidewalls of the tubes, the slots defining a common chordal plane of the tubes. Each tube is maintained, respectively in the direction of belt travel, at drying, ashing and atomization temperature for the particular sample. The tubes are heated by an electrical current of appropriate magnitude passed between pairs of electrodes associated with the ends of the tubes. A beam of radiation of selected spectral characteristics is passed axially through the last tube to a detector which determines the degree of absorption of the radiation beam by the atomized sample in that tube.
摘要翻译：通过原子吸收光谱法分析样品的雾化方法，其中样品通过依次经受离散的环境温度增量而逐渐加热至干燥，灰化和雾化温度。

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