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公开(公告)号：US4326802A
公开(公告)日：1982-04-27
申请号：US118916
申请日：1980-02-06
CPC分类号： G01J3/18
摘要： A highly accurate, rapid scanning monochromator type of spectroanalysis system employs a source of the plasma emission type, a filtering monochromator, and a resolving monochromator. Each monochromator has a dispersing element and the two dispersing elements are arranged to be moved simultaneously but at different rates such that the spectral order of radiation from the source as dispersed by the first dispersing element is different from the spectral order of radiation dispersed by the second dispersing element, together with selectively operable control means for moving the two dispersing elements simultaneously and at the same rate.
摘要翻译： 高精度，快速的扫描单色仪类型的光谱分析系统采用等离子体发射型的源，滤光单色仪和分辨单色仪。 每个单色仪具有分散元件，并且两个分散元件被布置成同时移动但是以不同的速率移动，使得由第一分散元件分散的来自源的辐射的光谱次序不同于由第二分散元件分散的辐射的光谱顺序 分散元件，以及用于同时和以相同速率移动两个分散元件的选择性可操作的控制装置。
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公开(公告)号：US5088823A
公开(公告)日：1992-02-18
申请号：US414700
申请日：1989-09-29
CPC分类号： G01J3/02 , G01J3/0208 , G01J3/0229 , G01J3/0232 , G01J3/0262 , G01J3/1809 , G01J3/2803 , G01J2003/1208 , G01J3/04 , G01J3/2823 , G01J3/40 , G01N21/73
摘要： A spectroanalytical system includes entrance aperture defining structure for receiving radiation to be analyzed along a first path; collimating structure in the first path for providing collimated radiation along a second path; fixed refraction structure in the second path for spatially separating (refracting) radiation in the second path in a first direction as a function of wavelength; fixed echelle grating structure in the second path for spatially separating the refracted radiation as a function of wavelength in a second direction orthogonal to the first direction and directing the orthogonally dispersed radiation in a beam along a third path that does not pass through the first refraction structure; and two-dimensional array detector structure for detecting the beam of orthogonally refracted radiation.
摘要翻译： 光谱分析系统包括用于沿着第一路径接收要分析的辐射的入口孔限定结构; 用于沿第二路径提供准直辐射的第一路径中的准直结构; 在第二路径中的固定折射结构，用于沿第一方向在第二路径中空间分离（折射）辐射作为波长的函数; 在第二路径中固定的梯形光栅结构，用于在与第一方向正交的第二方向上将波长的函数空间上分离折射辐射，并将沿着不穿过第一折射结构的第三路径的正交分散的辐射引导到光束中 ; 以及用于检测正交折射辐射束的二维阵列检测器结构。
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公开(公告)号：US4531836A
公开(公告)日：1985-07-30
申请号：US473326
申请日：1983-03-08
CPC分类号： G01N21/73 , G01J3/32 , G01J2003/2866
摘要： A spectroanalytical method includes the steps of exciting material to spectroemissive levels, dispersing radiation from the excited sample material into a spectrum, positionally locating a reference constituent of the excited material in the spectrum, the reference constituent having a known wavelength offset from an element of interest in the sample material to be analyzed, and then shifting the known wavelength offset by an essentially hysteresis free mechanism and making an analytical measurement at that wavelength offset position of radiation produced by a spectrum from sample material that has been excited to spectroemissive levels.
摘要翻译： 光谱分析方法包括以下步骤：将材料激发到分光辐射级别，将来自激发的样品材料的辐射分散到光谱中，将激发的材料的参考成分定位在光谱中，参考成分具有与感兴趣元素偏移的已知波长 在待分析的样品材料中，然后将已知的波长偏移由基本上无迟滞的机构移动，并且在由已被激发到分光发射水平的样品材料的光谱产生的辐射的波长偏移位置进行分析测量。
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公开(公告)号：US4361401A
公开(公告)日：1982-11-30
申请号：US161879
申请日：1980-06-23
摘要： Method and apparatus for automatically depositing predetermined reproducible amounts of nebulized samples into a furnace atomizer of an atomic absorption spectrophotometer, the atomizer being provided with an aperture, wherein a plurality of sample containers containing samples to be analyzed are arranged and successively transported on a sample supporting device, with the sample containers being open at their upper ends. The samples are aspirated from the containers via a suitable means and into a nebulizer-mixing chamber device wherein they are nebulized and mixed until such time that the nebulized sample achieves full equilibrium therein. A means is provided for depositing the nebulized and now equilibrated sample from the chamber device through the aperture into the furnace atomizer. The deposition of predetermined and reproducible amounts of nebulized samples is controlled by a means which, in a preferred embodiment, comprises a vacuum source in valved communication with the means for depositing the nebulized sample in a way that aerosol deposition is effected only during the time period when the vacuum source is shut off from the means for depositing the aerosol sample by shutting off the valve.In another preferred embodiment, the means for controlling the amount of aerosol sample being deposited comprises a fluidic switch in communication with the nebulizer-mixing chamber device on the one hand and with the means for depositing the sample on the other. Hence, sample deposition takes place only during the time period when such communication from the chamber device to the deposition means is effected by the fluidic switch.
摘要翻译： 用于将预定的可再现量的雾化样品自动沉积到原子吸收分光光度计的炉式雾化器中的方法和装置，雾化器设有孔，其中将包含待分析样品的多个样品容器布置并依次在样品支持 装置，样品容器在其上端打开。 样品通过合适的方式从容器中吸出并进入雾化器 - 混合室装置，其中它们被雾化和混合，直到雾化样品在其中达到完全平衡的时间为止。 提供了一种装置，用于将来自室装置的雾化和现在平衡的样品通过孔进入炉雾化器。 预定和可重复数量的雾化样品的沉积通过一种方式来控制，在一个优选实施例中，这种装置包括与用于沉积雾化样品的装置进行阀门连通的真空源，其方式是仅在该时间段内进行气溶胶沉积 当通过关闭阀门将真空源与用于沉积气溶胶样品的装置切断时。 在另一个优选实施例中，用于控制被沉积的气溶胶样品量的装置包括一方面与雾化器 - 混合室装置连通的流体开关，以及用于将样品沉积在另一个上的装置。 因此，样品沉积仅在从腔室装置到沉积装置的这种连通通过流体开关实现的时间段内进行。
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公开(公告)号：US4306175A
公开(公告)日：1981-12-15
申请号：US125999
申请日：1980-02-29
IPC分类号： H05H1/30
CPC分类号： H05H1/30
摘要： An induction plasma system includes a plasma chamber, a high frequency electrical coil that surrounds the chamber, and an oscillator for energizing the coil to establish a plasma maintaining condition in the chamber. The oscillator tank circuit includes the coil, and is tuned so that it is essentially at resonance when a plasma condition is established in the chamber. Ignition means is arranged for initiating a plasma condition, and is constructed such that insertion of the ignition means into the chamber in the absence of a plasma condition shifts the impedance condition in the chamber to essentially the same tuned condition that exists when a plasma condition is established in the plasma chamber, but without need to adjust any component of the tank circuit.
摘要翻译： 感应等离子体系统包括等离子体室，围绕室的高频电线圈，以及用于激励线圈以在室中建立等离子体维持状态的振荡器。 振荡器振荡电路包括线圈，并且被调谐成使得当在腔室中建立等离子体条件时它基本上是谐振的。 点火装置被设置用于启动等离子体状态，并且被构造成使得在没有等离子体条件的情况下将点火装置插入室中将室内的阻抗状态转移到当等离子体条件是等离子体条件时存在的基本上相同的调谐条件 建立在等离子体室中，但不需要调节油箱回路的任何部件。
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公开(公告)号：US5095205A
公开(公告)日：1992-03-10
申请号：US662930
申请日：1991-03-01
CPC分类号： G01N21/3103 , G01J3/42 , G01J2003/104 , G01N2021/3114
摘要： A spectroanalytical system with a plurality of radiation sources and structure defining an analysis region that includes means for thermally energizing a sample material to be analyzed. Analysis beam path defining structure includes means for passing a radiation beam from a radiation source along the analysis beam path through the analysis region for modification by sample material in the analysis region. Analysis structure includes radiation dispersing structure arranged to disperse radiation in the analysis beam path with a spectrum and a radiation sensor. First transducer structure moves the dispersing structure relative to the beam path to apply a selected portion of the radiation dispersed by the dispersing structure to the radiation sensor. Source selector structure is disposed in the analysis beam for selecting radiation from one of the radiation sources along the analysis beam path, second transducer structure is coupled to the source selector structure for directing radiation from a particular radiation source along the analysis beam path, and control structure coordinately operates the two transducer structures to apply a particular dispersed wavelength of radiation from the selected radiation source to the radiation sensor.
摘要翻译： 具有多个辐射源和限定分析区域的结构的光谱分析系统，其包括用于对待分析的样品材料进行热激发的装置。 分析光束路径限定结构包括用于使来自辐射源的辐射束沿着分析光束路径通过分析区域的装置，以便通过分析区域中的样品材料进行修饰。 分析结构包括辐射分散结构，其布置成利用光谱和辐射传感器在分析光束路径中分散辐射。 第一传感器结构相对于光束路径移动分散结构，以将由分散结构分散的辐射的选定部分施加到辐射传感器。 源选择器结构设置在分析光束中，用于沿着分析光束路径选择来自辐射源之一的辐射，第二传感器结构耦合到源选择器结构，用于沿着分析光束路径引导来自特定辐射源的辐射，并且控制 结构协调地操作两个换能器结构以将来自所选择的辐射源的特定分散的辐射波长施加到辐射传感器。
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