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公开(公告)号：US4553840A
公开(公告)日：1985-11-19
申请号：US442113
申请日：1982-11-16
申请人： Taro Nogami , Masamichi Tsukada
发明人： Taro Nogami , Masamichi Tsukada
IPC分类号： G01J3/18
CPC分类号： G01J3/18 , G01J2003/1814
摘要： A double monochrometer comprises a main monochrometer including a plane grating and an auxiliary monochrometer including a concave grating. The concave grating is disposed on the entrance or exit optical axis of the main monochrometer. Preferably, the angular dispersion of the concave grating is selected to be smaller than that of the plane grating. Sine bars for rotating the concave and plane gratings for wavelength scanning can be driven by means of a single feed screw mechanism even if the lengths of the sine bars are made different from each other in accordance with a difference in angular dispersion between the concave and plane gratings.
摘要翻译： 双色单色仪包括包括平面光栅的主单色仪和包括凹光栅的辅助单色仪。 凹形光栅设置在主单色仪的入口或出射光轴上。 优选地，凹面光栅的角度色散被选择为小于平面光栅的角度色散。 用于旋转用于波长扫描的凹面和平面光栅的正弦棒可以通过单个进给螺杆机构来驱动，即使正弦棒的长度根据凹面和平面之间的角分散的差异而彼此不同 光栅。
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公开(公告)号：US5202562A
公开(公告)日：1993-04-13
申请号：US724179
申请日：1991-07-01
IPC分类号： G01N27/62 , H01J37/244 , H01J49/04 , H01J49/26
CPC分类号： H01J49/04
摘要： A standard containing the same elements as a sample is prepared. Concentrations of the elements of the standard are known previously. When signal intensities of an element of the standard solution and the sample exceed an upper limit of a pulse counter of an element analyzing apparatus, a transmitting rate of a passage, through which ionized elements of the standard and the sample pass, is controlled to be less than the ordinal transmitting rate of the passage in synchronism to the passing time of the elements. The concentrations of the elements of the sample is calculated based on output signals of the pulse counter concerning the elements of the standard and the sample and known concentration of the standard.
摘要翻译： 制备含有与样品相同元素的标准品。 标准要素的浓度先前已知。 当标准溶液和样品的元素的信号强度超过元素分析装置的脉冲计数器的上限时，将标准品和样品通过的通道的透射率控制为 小于通道的顺序传输速率与元件的通过时间同步。 基于脉冲计数器的输出信号计算样品的元素浓度，该脉冲计数器与标准品和样品的元素以及标准品的已知浓度相关。
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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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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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5.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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6.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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公开(公告)号：US5130537A
公开(公告)日：1992-07-14
申请号：US674407
申请日：1991-03-25
申请人： Yukio Okamoto , Takashi Iino , Satoshi Shimura , Masamichi Tsukada , Hiromi Yamashita , Masatoshi Kitagawa
发明人： Yukio Okamoto , Takashi Iino , Satoshi Shimura , Masamichi Tsukada , Hiromi Yamashita , Masatoshi Kitagawa
CPC分类号： G01N21/73
摘要： A plasma analyzer for trace element analysis has a gas supply system comprising a plurality of gas sources, an electromagnetic valve provided on a line connecting each gas source to a plasma generating space, a buffer tank provided after the electromagnetic valve on the line, and a flow regulating flowmeter provided after the buffer tank on the line. Each electromagnetic valves is controlled for on-off operation and the corresponding buffer tank suppresses the sudden change of the flow rate of the corresponding gas, so that the composition of the gas supplied to the plasma generating space changes gradually in spite of the simple on-off operation of the electromagnetic valves. Thus, the fluctuation and extinction of the plasma attributable to the sudden change of the composition of the gas supplied to the plasma generating space can be effectively prevented.
摘要翻译： 一种用于微量元素分析的等离子体分析器具有包括多个气体源的气体供给系统，设置在将每个气体源连接到等离子体产生空间的线路上的电磁阀，设置在该线路上的电磁阀之后的缓冲罐，以及 流量调节流量计提供在缓冲罐上的线路上。 每个电磁阀被控制为开 - 关操作，并且相应的缓冲罐抑制相应气体的流量的突然变化，使得提供给等离子体产生空间的气体的组成逐渐变化， 关闭电磁阀的操作。 因此，可以有效地防止由于供给到等离子体产生空间的气体的组成突然变化引起的等离子体的波动和消光。
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8.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：US06423965B1
公开(公告)日：2002-07-23
申请号：US09378767
申请日：1999-08-23
IPC分类号： H01J4900
CPC分类号： H01J49/04
摘要： Plasma ion source mass spectrometers or liquid chromatograph/mass spectrometers are provided: wherein photon noises and matrix molecule ions produced by the ion source are decreased, the decrease of the quantity of signal is suppressed, and the apparatus maintenance is improved. The photon noises are decreased with a shielding plate and a 90 degrees deflector. The maintainability in cleaning is improved by a combination of a leading electrode, the shielding plate having a small hole, and a gate valve. The decrease in the quantity of signal is suppressed with the leading electrode, and a double cylindrical type static lens. Position adjustment of the leading electrode is performed with a flat plate having plural holes. Using an ion trap mass analyzer, matrix molecule ions are eliminated by applying a resonance voltage between its end cap electrodes. Decrease in the quantity of signals, which has been a problem, can be prevented, and a high transmission can be realized with a preferable reproducibility against disturbance of an electric field caused by ion lens and the like. A detectable limit of atomic ions of the sample can be improved by eliminating the matrix molecule ions.
摘要翻译： 提供了等离子体离子源质谱仪或液相色谱仪/质谱仪：其中由离子源产生的光子噪声和基质分子离子减少，抑制了信号量的减少，从而改善了设备的维护。 光子噪声随屏蔽板和90度偏转器而减小。 通过前导电极，具有小孔的屏蔽板和闸阀的组合来提高清洁的可维护性。 用前导电极和双圆柱形静电透镜抑制信号量的减少。 引导电极的位置调整用具有多个孔的平板进行。 使用离子阱质量分析仪，通过在其端盖电极之间施加谐振电压来消除基质分子离子。 可以防止已经存在问题的信号量的减少，并且以离子透镜等引起的电场干扰的优选再现性可以实现高透射率。 可以通过消除基质分子离子来改善样品的原子离子的可检测极限。
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10.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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