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公开(公告)号：US5308977A
公开(公告)日：1994-05-03
申请号：US25139
申请日：1993-03-02
申请人： Konosuke Oishi , Masataka Koga , Hiromi Yamashita , Takashi Iino , Toyoharu Okumoto , Tsuyoshi Nishitarumizu
发明人： Konosuke Oishi , Masataka Koga , Hiromi Yamashita , Takashi Iino , Toyoharu Okumoto , Tsuyoshi Nishitarumizu
CPC分类号： H01J49/105
摘要： A plasma mass spectrometer generates an aerosol of a sample, by dissolving the sample in a liquid solvent, and spraying the liquid into a spray chamber via a nebulizer. The solvent condenses in the spray chamber and an aerosol of the sample then passes through a supply tube to a plasma torch. Microwave power from an output on the plasma torch converts the aerosol to a plasma, and the plasma passes to an analyzer. If microwave radiation reached the spray chamber, it would cause heating of the solvent which may evaporate it so that the solvent would be present in the plasma. Therefore, there is a wall between the spray chamber and the plasma torch and microwave output which blocks such microwave radiation.
摘要翻译： 等离子体质谱仪通过将样品溶解在液体溶剂中并通过喷雾器将液体喷射到喷雾室中而产生样品气溶胶。 溶剂在喷雾室中冷凝，然后样品的气溶胶通过供应管到等离子体焰炬。 来自等离子体焰炬上的输出的微波功率将气溶胶转换成等离子体，并且等离子体传递到分析器。 如果微波辐射到达喷雾室，则会引起溶剂的加热，这可能使其蒸发，使得溶剂将存在于等离子体中。 因此，喷雾室和等离子体焰炬和微波输出之间存在阻挡这种微波辐射的壁。
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2.发明授权Analyzer using plasma and analysis method using plasma, interface used for the same and sample introducing component used for the same 失效使用等离子体分析仪和使用等离子体的分析方法，用于相同的界面和用于相同的样品引入组分
公开(公告)号：US5763877A
公开(公告)日：1998-06-09
申请号：US715587
申请日：1996-09-18
CPC分类号： H01J49/105 , G01N21/73
摘要： In an analyzer in which plasma is generated, a sample is supplied to the plasma though an aerosol guide tube and analyzed by a quadrapole mass filter, the top end portion of the aerosol guide tube is made of sapphire.
摘要翻译： 在其中产生等离子体的分析仪中，通过气溶胶引导管将样品供应到等离子体，并通过四极质量过滤器分析，气溶胶引导管的顶端部分由蓝宝石制成。
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3.发明授权Mass spectrometer, skimmer cone assembly, skimmer cone and its manufacturing method 失效质谱仪，撇渣锥组件，撇渣器及其制造方法
公开(公告)号：US5793039A
公开(公告)日：1998-08-11
申请号：US605572
申请日：1996-02-22
CPC分类号： H01J49/067
摘要： Disclosed is a structure comprising; (a) Plasma gas is supplied to torch tube 8 from inert pressure vessel 1. (b) Nebulizer 3 absorbs sample 4 to vaporize the sample as aerosol and to introduce it into plasma 5. (c) Plasma 5 touches sampling cone 10 having an opening at the apex and a conical surface, whereby an ion stream is extracted through the opening of the sampling cone whose pressure is reduced at the rear face thereof. (d) The extracted ion stream further touches skimmer cone 12 of the conical surface having a small hole at the apex, and is absorbed into vacuum chamber 13 where the pressure is further reduced at the rear face. (e) The ion stream is flowed into quadruple pole filter 18 to carry out the mass spectrometry analysis of the ion stream.
摘要翻译： 公开了一种结构，包括： （a）将等离子体气体从惰性压力容器1供应给割炬管8.（b）雾化器3吸收样品4以使气溶胶蒸发，并将其引入等离子体5.（c）等离子体5接触采样锥10， 在顶点处开口并具有锥形表面，由此通过其后面压力减小的取样锥体的开口提取离子流。 （d）提取的离子流进一步接触顶点处具有小孔的圆锥形表面的撇渣器锥体12，并被吸收到真空室13中，在该真空室13中后面进一步减小压力。 （e）离子流流入四极过滤器18，进行离子流的质谱分析。
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4.发明授权
公开(公告)号：US5616918A
公开(公告)日：1997-04-01
申请号：US539258
申请日：1995-10-05
CPC分类号： H01J49/105
摘要： A plasma ion mass spectrometer capable of improving detection accuracy in mass spectrometry by reducing background noise due to ultraviolet radiation and neutral particles, and a plasma ion mass spectrometry using the same. A sample is ionized with plasma in a plasma generating portion. The flow of the ionized sample is shielded by a shield plate after an elapse of a specified time, and ions of the sample accumulated before the shielding is held in an ion trap type mass spectrometric portion for a specified time. The ions of the sample held for the specified time are then subjected to mass spectrometry. During ions of the sample accumulated before the shielding are held, ultraviolet radiation mixed with the ions of the sample disappears, and thereby only ions of the sample can be subjected to mass spectrometry. As a result, background noise is reduced, to improve detection accuracy in mass spectrometry.
摘要翻译： 能够通过降低由于紫外线辐射和中性粒子引起的背景噪声而提高质谱检测精度的等离子体离子质谱仪和使用其的等离子体离子质谱法。 在等离子体产生部分中用等离子体离子化样品。 离子化样品的流动在经过规定时间后被屏蔽板屏蔽，并且在屏蔽之前累积的样品的离子在离子阱型质谱部分中保持一定时间。 然后将保持规定时间的样品的离子进行质谱分析。 在保持屏蔽之前累积的样品的离子中，与样品的离子混合的紫外线辐射消失，从而只能对样品的离子进行质谱分析。 结果，降低背景噪声，提高质谱检测的准确性。
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公开(公告)号：US4867562A
公开(公告)日：1989-09-19
申请号：US196263
申请日：1988-05-20
CPC分类号： G01N21/3103 , G01N2021/3111 , G01N2021/3114 , G01N21/74 , G01N2201/06166
摘要： An atomic absorption spectrophotometer for simultaneously measuring a plurality of elements different in kind from each other. A cylindrical heating furnace is provided for heating a sample being analyzed to dry, ash and atomize the sample thereby producing atomic vapor. A plurality of hollow-cathode discharge tubes corresponding in number to the elements being detected are arranged for simultaneously emitting light beams respectively containing line spectra of the respective elements, to cause the light beams to be incident upon the heating furnace at respective angles of inclination with respect to a central axis of the heating furnace. A plurality of spectral detection systems are arranged behind the heating furnace in relation to the angles of inclination, for respectively spectral-diffracting and receiving the light beams having their respective line spectra absorbed by the atomic vapor. A signal processing device is provided for carrying out calculation to obtain concentrations or quantities of the respective elements in the sample being analyzed, on the basis of respective ratios of atomic resonance absorption of the respective line spectra spectral-detected.
摘要翻译： 一种用于同时测量彼此不同种类的多种元素的原子吸收分光光度计。 提供圆柱形加热炉，用于加热被分析的样品以干燥，灰分并雾化样品，从而产生原子蒸气。 多个对应于被检测的元件的空心阴极放电管被布置成同时发射分别包含各个元件的线谱的光束，以使光束以相应的倾角入射到加热炉上， 相对于加热炉的中心轴线。 多个光谱检测系统相对于倾斜角度布置在加热炉后面，用于分别衍射和接收具有由原子蒸气吸收的各自线谱的光束。 提供信号处理装置，用于根据频谱检测的各个线谱的原子共振吸收的相应比例进行计算以获得正在分析的样品中的各元素的浓度或数量。
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公开(公告)号：US5104220A
公开(公告)日：1992-04-14
申请号：US316964
申请日：1989-02-28
CPC分类号： G01N21/74
摘要： An atomic absorption spectrophotometer comprising means for setting the ashing temperature for that of the element having the lowest ashing temperature; means for setting the atomizing temperature for that of the element having the highest atomizing temperature; and means for effecting background correction utilizing Zeeman effect.
摘要翻译： 一种原子吸收分光光度计，包括用于设定具有最低灰度温度的元件的灰度温度的装置; 用于设定具有最高雾化温度的元件的雾化温度的装置; 以及利用塞曼效应进行背景校正的方法。
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7.发明授权Atomic absorption spectrophotometer with furnace at pressure equal or near light source pressure 失效原子吸收分光光度计，炉内压力等于或接近光源压力
公开(公告)号：US4840484A
公开(公告)日：1989-06-20
申请号：US175320
申请日：1988-03-30
CPC分类号： G01N21/74 , G01N2021/745
摘要： In an atomic absorption spectrophotometer including an electric furnace for drying and ashing a liquid sample to be analyzed and then atomizing the sample to generate atomic vapor, a low-pressure lamp for emitting light having a spectrum of an element to be analyzed onto the atomic vapor atomized in the electric furnace, a monochromator for splitting the transmitted light from the electric furnace and selecting a wavelength of an atomic absorption line absorbed by the element to be analyzed, and a signal processing unit for performing signal processing on the light having the selected wavelength supplied from the monochromator, the electric furnace is an airtight mechanism for maintaining airtightness of the inside of the electric furnace and an evacuation unit for evacuating the inside of the electric furnace to a pressure equal to the pressure inside the lamp.
摘要翻译： 在包括用于干燥和灰化待分析的液体样品的电炉，然后将样品雾化以产生原子蒸气的原子吸收分光光度计中的低压灯，用于将具有待分析元素的光谱发射到原子蒸气上的光 在电炉中雾化的单色仪，用于分离来自电炉的透射光并选择待分析元件吸收的原子吸收线的波长的单色仪，以及对具有所选波长的光进行信号处理的信号处理单元 电炉是用于保持电炉内部的气密性的气密机构和用于将电炉的内部抽空至与灯内的压力相等的压力的排气单元。
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公开(公告)号：US4890919A
公开(公告)日：1990-01-02
申请号：US140715
申请日：1988-01-04
CPC分类号： G01N21/74 , G01J5/601 , G01N2021/745
摘要： An atomic absorption spectrophotometer is disclosed in which, in order to detect the temperature of a graphite cuvette correctly on the basis of the radiation emitted from the inner wall of the graphite cuvette, the above radiation and the measuring light emitted from a hollow cathode lamp are both taken out by the same optical members, and then the radiation is separated from the measuring light, to be detected and used for measuring the temperature of the graphite cuvette.
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9.发明授权
公开(公告)号：US5108178A
公开(公告)日：1992-04-28
申请号：US500880
申请日：1990-03-29
CPC分类号： G01N21/74
摘要： An atomic absorption spectrophotometer includes a sample-atomizing portion for ashing and atomizing a sample, a power source operable to supply electric current to the sample-atomizing portion, a controller for controlling the operation of the power source, a pair of pressure regulators for setting a flow rate of an inert gas according to an ashing step and an atomization step in the sample-atomizing portion, a pair of movable valves respectively provided downstream of and connected to the pair of pressure regulators, and a filter device provided between the pair of movable valves and the sample-atomizing portion. Either of the pair of movable valves is activated into open or closed condition in synchronism with the operation of the power source so as to select the flow rate of the inert gas into the sample-atomizing portion. An electromagnetic shut-off valve for use in the atomic absorption spectrophotometer includes a valve housing having a valve chamber, and a movable valve body housed in the valve chamber. The movable valve body is movable between open and closed positions so as to open and close a gas flow line. The wall of the valve chamber is coated with a non-metallic material.
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公开(公告)号：US5148021A
公开(公告)日：1992-09-15
申请号：US630554
申请日：1990-12-20
申请人： Yukio Okamoto , Satoshi Shimura , Konosuke Oishi , Masataka Koga , Makoto Yasuda , Takahashi Iino
发明人： Yukio Okamoto , Satoshi Shimura , Konosuke Oishi , Masataka Koga , Makoto Yasuda , Takahashi Iino
CPC分类号： H01J49/06
摘要： A mass spectrometer using a plasma ion source for analyzing an ultra-trace element includes a plasma generation system for generating a plasma including the composition of a sample, an ion beam formation system for extracting ions in the form of a beam from the plasma generating the ions, a mass spectrometry system for performing mass spectrometry of the ion beamn, and an ion detection system for detecting the ions subjected to the mass spectrometry, in which a lens system made up of a cylindrical first electrode, a cylindrical second electrode with a photon stopper disposed on the central axis thereof, and a cylindrical third electrode is further provided between the ion beam formation system and the mass spectrometry system. By the provision of the lens system, the ions generated in the plasma are transported more efficiently to the side of the mass spectrometry system and by the provision of the photon stopper in the above described position, it is achieved, with a simpler structure, to prevent photons from entering the ion detection system.
摘要翻译： 使用等离子体离子源分析超微量元素的质谱仪包括：等离子体产生系统，用于产生包含样品组成的等离子体;离子束形成系统，用于从等离子体中提取离子的形式， 离子，用于进行离子束的质谱分析的质谱系统和用于检测进行质谱分析的离子的离子检测系统，其中由圆柱形第一电极构成的透镜系统，具有光子的圆柱形第二电极 止动件设置在其中心轴上，并且在离子束形成系统和质谱系统之间还设置有圆柱形的第三电极。 通过设置透镜系统，在等离子体中产生的离子更有效地传输到质谱系统的侧面，并且通过在上述位置提供光子停止器，以更简单的结构实现 防止光子进入离子检测系统。
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