Method and apparatus for sample analysis by atomic spectroscopy
    1.
    发明授权
    Method and apparatus for sample analysis by atomic spectroscopy 失效
    通过原子光谱分析样品的方法和装置

    公开(公告)号:US3740145A

    公开(公告)日:1973-06-19

    申请号:US3740145D

    申请日:1970-09-14

    Inventor: MITCHELL D

    CPC classification number: G01N21/72 G01N21/3103

    Abstract: New and improved method and apparatus for the analysis of samples by atomic spectroscopy are provided and comprise sample atom production means taking the form of body means having a generally central sample chamber extending generally longitudinally therethrough, and heating means for heating said chamber and adjacent areas to convert said sample to atoms. Sample stream generation means in the nature of drop generator means are operably associated with said body means at the lower extremity thereof and are effective to generate a stream of sample drops of substantially uniform size for upward passage through said body chamber to result in a formation of a concentrated atom cloud or sample volume of the sample atoms of interest above said body means. Means are provided to modulate the formation of said sample volume by said sample drop stream to provide for more accurate read-out of the sample atom concentration of interest. Means are also provided to enable the simultaneous multielement analysis of a sample by atom spectroscopy and comprise a plurality of drop generator means which are operable to generate a plurality of sample drop streams for passage through said body chamber to form said sample volume, and means are provided to periodically and alternately deflect said sample drop streams from passage into said sample volume to substantially eliminate signal interference. As disclosed, the new and improved method and apparatus of the invention are particularly adaptable for use in automatically operable sample supply, treatment and analysis means which are operable to automatically analyze a series stream of a large plurality of different samples on a continuous flow basis.

    Abstract translation: 提供了用于通过原子光谱法分析样品的新的和改进的方法和装置,并且包括采样体形式的样品原子产生装置,其具有通常纵向延伸穿过的通常中心的样品室的主体装置,以及用于将所述室和相邻区域加热的加热装置 将所述样品转化为原子。 液滴发生器装置本质上的样品流产生装置在其下端可操作地与所述主体装置相关联,并且有效地产生基本均匀尺寸的样品流,以向上通过所述体腔,以形成 在所述身体装置上方的感兴趣的样品原子的浓缩原子云或样品体积。 提供装置以通过所述样品液滴流调节所述样品体积的形成,以提供更准确地读出所关注的样品原子浓度。

    Apparatus for simultaneous multielement analysis by atomic fluorescence spectroscopy
    2.
    发明授权
    Apparatus for simultaneous multielement analysis by atomic fluorescence spectroscopy 失效
    原子荧光光谱法同时进行多元分析的装置

    公开(公告)号:US3715163A

    公开(公告)日:1973-02-06

    申请号:US3715163D

    申请日:1970-08-21

    Inventor: MITCHELL D

    CPC classification number: G01N21/6404

    Abstract: Apparatus for processing a plurality of successive electrical signals of varying magnitudes comprises an amplifier arrangement whose gain is varied in phase with the signal being then received, whereby the output is maintained within a predetermined range the amplifier arrangement is operated under its optimum load conditions. The amplifier arrangement is designed in junction with spectroscopic apparatus for effecting simultaneous multielement analysis.

    Abstract translation: 用于处理具有不同幅度的多个连续电信号的装置包括放大器装置,其放大器随后接收到的信号同相变,从而输出保持在预定范围内,放大器装置在其最佳负载条件下运行。 放大器布置设计为与分光装置结合,用于同时进行多元素分析。

    3.
    发明专利
    未知

    公开(公告)号:BE755253A

    公开(公告)日:1971-02-25

    申请号:BE755253D

    Inventor: MITCHELL D

    Abstract: Apparatus for processing a plurality of successive electrical signals of varying magnitudes comprises an amplifier arrangement whose gain is varied in phase with the signal being then received, whereby the output is maintained within a predetermined range the amplifier arrangement is operated under its optimum load conditions. The amplifier arrangement is designed in junction with spectroscopic apparatus for effecting simultaneous multielement analysis.

    APPATATUS FOR SUMILATENOUS MULIELEMENT ANALYSIS BY ATOMIC FLUORESCENCE SPECTROSCOPY

    公开(公告)号:CA922535A

    公开(公告)日:1973-03-13

    申请号:CA91417

    申请日:1970-08-24

    Inventor: MITCHELL D

    Abstract: Apparatus for processing a plurality of successive electrical signals of varying magnitudes comprises an amplifier arrangement whose gain is varied in phase with the signal being then received, whereby the output is maintained within a predetermined range the amplifier arrangement is operated under its optimum load conditions. The amplifier arrangement is designed in junction with spectroscopic apparatus for effecting simultaneous multielement analysis.

    6.
    发明专利
    未知

    公开(公告)号:SE364116B

    公开(公告)日:1974-02-11

    申请号:SE1148370

    申请日:1970-08-24

    Inventor: MITCHELL D

    Abstract: Apparatus for processing a plurality of successive electrical signals of varying magnitudes comprises an amplifier arrangement whose gain is varied in phase with the signal being then received, whereby the output is maintained within a predetermined range the amplifier arrangement is operated under its optimum load conditions. The amplifier arrangement is designed in junction with spectroscopic apparatus for effecting simultaneous multielement analysis.

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