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公开(公告)号：US4804519A
公开(公告)日：1989-02-14
申请号：US22769
申请日：1987-03-06
CPC分类号： G01N21/73 , G01N1/38 , G01N35/1095 , Y10T436/115831 , Y10T436/117497 , Y10T436/118339 , Y10T436/13
摘要： An analysis system includes a sample inlet, a diluent inlet, and a mixing chamber that has an outlet through which a mixture of the sample and diluent is flowed and in which a mechanical mixing member is housed. Positive displacement pumps preferably concurrently flow diluent to the mixing chamber and draw diluted sample to be analyzed from the mixing chamber. Bubble separation apparatus has a first branch connected to a drain and a second branch connected to the analyzer input. In a particular embodiment, the analyzer apparatus includes a nebulizer that controls the flow rate of the bubble-free stream through the second branch, sample excitation apparatus in the form of an induction coupled plasma (ICP) torch for exciting the sample to spectroemissive levels, and means for spectroanalysis of the excited sample at the output of the torch.
摘要翻译： 分析系统包括样品入口，稀释剂入口和混合室，该混合室具有出口，样品和稀释剂的混合物通过该出口流动，并且其中容纳有机械混合构件。 正位移泵优选地同时将稀释剂流到混合室并从混合室中抽出待分析的稀释样品。 气泡分离装置具有连接到漏极的第一分支和连接到分析器输入的第二分支。 在特定实施例中，分析仪装置包括雾化器，其控制通过第二分支的无气泡流的流速，以感应耦合等离子体（ICP）焊枪形式的样品激发装置，用于将样品激发到分光发射水平， 以及用于在火炬输出处激发的样品的光谱分析的装置。
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公开(公告)号：US4367042A
公开(公告)日：1983-01-04
申请号：US215674
申请日：1980-12-12
IPC分类号： G01N21/72
CPC分类号： G01N21/72
摘要： A spectroanalytical instrument includes burner structure and a nebulizer for furnishing sample in fog form for flow through a premix chamber to the burner structure. Flow structure extending from a chamber port to a drain port provides a condensate flow path from the chamber to a drain. Trap structure is disposed in series in the flow path between the chamber port and the drain port, and drain line closure apparatus is switched between a first condition in which the drain line is closed and a second condition in which the drain line is opened by a control responsive to liquid in the trap structure such that the drain line is initially closed and is opened automatically in response to accumulation of condensate liquid in the trap structure to enable maintenance of positive pressure in the premix chamber.
摘要翻译： 分析仪器包括燃烧器结构和用于以雾形式提供样品的雾化器，用于通过预混合室流入燃烧器结构。 从腔室端口延伸到排水口的流动结构提供从腔室到排水管的冷凝物流动路径。 陷阱结构在腔室端口和排水口之间的流动路径中串联布置，并且排水管线关闭装置在其中排放管线关闭的第一状态和排水管路打开第二状态之间切换 响应于捕集结构中的液体的控制，使得排水管线首先关闭并且响应于冷凝液体在捕集器结构中的积聚而自动打开，以能够维持预混合室中的正压力。
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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：US4545680A
公开(公告)日：1985-10-08
申请号：US483111
申请日：1983-04-08
CPC分类号： G01J3/42 , G01J1/1626 , G01J2003/042 , G01J3/0256 , G01N21/3103
摘要： A chopperless spectroanalytical system of the double beam type in which radiation from a common source is split into reference and analysis beams. The two beams are directed along similar paths such that the analysis beam passes through an analysis region and the reference beam bypasses that analysis region. A monochromator has two spaced aperture regions such that one aperture region provides an entrance aperture for the analysis beam and an exit aperture for a dispersed portion of the reference beam; and the other aperture region provides an entrance aperture for the reference beam and an exit aperture for a dispersed portion of the analysis beam. The beams exiting from the two exit apertures are simultaneously monitored and compared to compensate for errors due to source fluctuations and the like.
摘要翻译： 双光束类型的无斩波分光系统，其中来自共同源的辐射被分成参考和分析光束。 两个光束沿着相似的路径引导，使得分析光束通过分析区域，并且参考光束绕过该分析区域。 单色仪具有两个间隔开的孔径区域，使得一个孔径区域为分析光束提供入射孔和用于参考光束的分散部分的出射孔; 并且另一个孔径区域为参考光束提供入口孔径和用于分析光束的分散部分的出射孔。 同时监测从两个出口孔射出的光束并对其进行比较，以补偿源波动等引起的误差。
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公开(公告)号：US4462685A
公开(公告)日：1984-07-31
申请号：US240542
申请日：1981-03-04
IPC分类号： G01N21/31
CPC分类号： G01N21/3103
摘要： An atomic absorption system comprising a radiation source that emits spectral line radiation characteristic of an element to be analyzed, an analysis region open to passage of the beam of radiation from the source and in which a sample of the substance to be analyzed is atomized, source control means for alternately energizing the source at a first intensity level to provide a radiation output that has a narrow spectral line at a wavelength of an element to be detected and at a higher intensity level to provide a radiation output of broader wavelength with intensity suppression at the wavelength of the narrow spectral line, electronic transducing means for developing an electrical signal corresponding to the sensed radiation intensity of the radiation beam that passes through the analysis region, and a log ratio circuit that utilizes integrated electrical signals corresponding to the two source energization intensity levels to provide background corrected concentration information on the element of interest in the analyzed sample.
摘要翻译： 一种原子吸收系统，包括发射待分析元件的光谱线辐射特性的辐射源，对来自源的辐射束通过的分析区域，待分析物质的样品被雾化， 控制装置，用于以第一强度水平交替地激励源，以提供在要被检测的元件的波长处具有窄谱线的辐射输出，并且处于较高的强度水平，以提供具有强度抑制的较宽波长的辐射输出 窄谱线的波长，用于产生对应于通过分析区域的辐射束的感测辐射强度的电信号的电子传感装置，以及利用对应于两个源通电强度的集成电信号的对数比电路 在t上提供背景校正浓度信息的级别 他在分析的样本中感兴趣的元素。
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公开(公告)号：US4330776A
公开(公告)日：1982-05-18
申请号：US127246
申请日：1980-03-04
CPC分类号： G06F3/0202 , G06F3/0238 , Y10S248/918
摘要： An input control includes first and second keyboard assemblies mounted on a common structural unit, an encoder on the unit, and a plurality of output conductors connected to the encoder for transmitting a binary coded signal when a key is actuated. The first keyboard assembly includes a set of keys that generate the same input control function signals as do the keys in the second keyboard assembly. The structural unit is mounted for rotation between an upright position in which only the first keyboard assembly is operator accessible and an inverted position in which only the second keyboard assembly is operator accessible. A latch is provided for locking the structural unit in either position.
摘要翻译： 输入控制包括安装在公共结构单元上的第一和第二键盘组件，单元上的编码器以及连接到编码器的多个输出导体，用于当键被致动时传输二进制编码信号。 第一键盘组件包括一组键，其产生与第二键盘组件中的键相同的输入控制功能信号。 结构单元安装成在只有第一键盘组件是操作者可访问的直立位置和只有第二键盘组件可操作者可访问的倒置位置之间旋转。 提供了用于将结构单元锁定在任一位置的闩锁。
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