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11. 发明专利

JPH1055777A MASS ANALYSER AND ELECTRODE HEATING METHOD 失效
公开(公告)号：JPH1055777A
公开(公告)日：1998-02-24
申请号：JP21081896
申请日：1996-08-09
申请人： HITACHI LTD
发明人： TAKADA YASUAKI , HIRABAYASHI YUKIKO , NABESHIMA TAKAYUKI , SAKAIRI MINORU , KOIZUMI HIDEAKI
IPC分类号： G01N27/62 , G01N30/72 , H01J49/06 , H01J49/34
摘要： PROBLEM TO BE SOLVED: To improve analysis precision of an ion trap mass analyzer by providing an inductance coil in the vicinity of a ring electrode and high-frequency heating the ring electrode by Joule's heat after generating eddy current on the ring electrode. SOLUTION: When a magnetic field is induced by an inductance coil 11, a ring electrode 5 generates an eddy current having an action for eliminating variation of that magnetic field. When an eddy current flows this electrode 5, Joule's heat is generated because of electric resistance of an electrode, and the ring electrode 5 is heated. The ring electrode can be heated efficiently by feeding an a.c. current to this coil 11 using an AC power source 12. In analysis of samples, after the samples are separated by a GC1, it is fed to an ion trap mass analyzer 3 by a pipe 2 together with carrier gas. The samples are ionized by an electron beam 9 to be discharged from an electron gun 8, stored in the mass analyzer for a constant time, and then mass-analyzed. The mass- analyzed ion is detected 10, and its output is processed by a data processor.

12. 发明专利

JPH1031005A METHOD OF OPERATING ION SOURCE AND MASS SPECTROMETRY DEVICE 失效
公开(公告)号：JPH1031005A
公开(公告)日：1998-02-03
申请号：JP18720996
申请日：1996-07-17
申请人： HITACHI LTD
发明人： HIRABAYASHI YUKIKO , NABESHIMA TAKAYUKI , TAKADA YASUAKI , SAKAIRI MINORU , KOIZUMI HIDEAKI
IPC分类号： G01N27/62 , G01N30/72 , H01J49/04 , H01J49/10
摘要： PROBLEM TO BE SOLVED: To prevent the periphery of a capillary orifice from being contaminated with drops of a sample solution by starting the feed of the sample solution after gas feed is started, and stopping the gas feed after the sample solution is stopped. SOLUTION: An LC pump 8 with flow detector changes the flow rate of a sample solution by a control 10 and feeds the sample solution to a capillary 2 the tip part of which is inserted to an orifice 3. The gas of a gas feeding part 4 is sent to an ion source body 6 by a gas tube 5, carried along the circumferential part of the capillary 2, and blown out to the atmosphere through the orifice 3. A flowmeter 9 changes the gas flow rate by the control 10 and transmits the flow rate information of gas to a control part 10. The control part 10 starts the feed of the sample solution when the flow rate reaches the atomizable value of the sample solution, stops the feed when it is lower than the atomizable value, and successively stops the gas feed. The sample solution in the capillary 2 is atomized by the blowout gas to generate the gaseous pseudo molecular ions of the sample molecule, and they are subjected to mass spectrometry 7.

13. 发明专利

JPH09318601A ANALYSIS METER 失效
公开(公告)号：JPH09318601A
公开(公告)日：1997-12-12
申请号：JP13618896
申请日：1996-05-30
申请人： HITACHI LTD
发明人： SAKAIRI MINORU , TAKADA YASUAKI , HIRABAYASHI YUKIKO , NABESHIMA TAKAYUKI , KOIZUMI HIDEAKI
IPC分类号： G01N27/62 , G01N27/70
摘要： PROBLEM TO BE SOLVED: To provide qualititative information, such as ions present in the solution, by atomizing a sample solution fed from a liquid pump, inducing an electric charge on liquid droplets by a high tension electric source, collecting the droplets in a collector, and detecting a current flowing to the collector. SOLUTION: A sample solution is fed to an atomizing section 3 with the liquid pump 2 from a sample 1. The sample solution is transformed into the small charged liquid droplets in an atomizing section 3. The small charged liquid droplets collide against the collector 4, and are detected as a current with a micro-ammeter. The current is transferred to a data processor 6. A high pressure gas supply source 7 and the high tension electric source 8 are provided near the atomizer 3 and the sample liquid droplets are effectively charged with electricity.

14. 发明专利

JPH09243600A MASS ANALYSER 失效
公开(公告)号：JPH09243600A
公开(公告)日：1997-09-19
申请号：JP5132596
申请日：1996-03-08
申请人： HITACHI LTD
发明人： TAKADA YASUAKI , HIRABAYASHI YUKIKO , HIRABAYASHI TSUDOI , NABESHIMA TAKAYUKI , SAKAIRI MINORU , KOIZUMI HIDEAKI
IPC分类号： G01N27/62 , G01N27/447 , H01J49/10
摘要： PROBLEM TO BE SOLVED: To simplify the constitution of a capillary electrophoresis/mass analyser (CE/MS) and to reduce the danger of the electric shock of an operator by using a spray auxiliary soln. feed means dispensing with a liquid feed pump. SOLUTION: The sample electrophoretically separated in a capillary to reach the end on the cathode side of the capillary 1 is mixed with a spray auxiliary soln. 4 and the resulting mixture is sprayed by the high speed gas stream allowed to flow to the gap between a metal pipe 3 and an orifice 18. The gaseous ions obtained by this spraying are introduced into a vacuum from an ion introducing fine orifice 10a to be subjected to mass analysis by a mass analyzing part. The soln. 4 is introduced into a metal pipe 3 from a spray auxiliary soln. tank 19 through piping 6 and a connector 20. Since the pressure at the end part of the metal pipe 3 becomes lower than the pressure (atmospheric pressure) of the part where the soln. tank 19 is arranged by the gas stream, the soln. 4 is sent by pressure difference. As a result, a liquid feed pump for feeding the soln. 4 becomes unnecessary and the ion source structure of CE/MS can be simplified.

15. 发明专利

JPH09122080A PROBE FOR ANALYZING CHEMICAL SUBSTANCE IN LIVING BODY 失效
公开(公告)号：JPH09122080A
公开(公告)日：1997-05-13
申请号：JP28288395
申请日：1995-10-31
申请人： HITACHI LTD
发明人： TAKADA YASUAKI , MAKI ATSUSHI , YOSHIDA MOTOKO , SAKAIRI MINORU , KOIZUMI HIDEAKI
IPC分类号： G01N21/64 , A61B5/00 , A61B5/145 , A61B5/1459 , G01N21/78 , G01N33/483 , A61B5/14
摘要： PROBLEM TO BE SOLVED: To obtain a method for analyzing chemical substances in a living body in real time without imposing a load on the living body by arranging an optical fiber to introduce emission attributed to substances to be analyzed outside a probe and a light measuring device to detect emission transmitted outside the living body therethrough. SOLUTION: A microprobe 3b comprises a dialysis membrane 5, a perfusate introduction tubule 7, a perfusate recovery tubule 8 and an optical fiber 9. The perfusate is mixed with a chemiluminescence reagent which emits light in reaction with a desired substance. The microprobe 3b is buried into a living body 4 and the perfusate is sent with a feed liquid pump 1 into the probe 3b through a piping 2a and the perfusate introduction tubule 7. A chemical substance permeating into the probe 3b through the dialysis membrane 5 reacts the chemiluminescence reagent contained in the perfusate to generate luminescence. The luminescence is extracted from one end of the optical fiber 9 and guided outside the living body through the optical fiber 9 to be measured by a light measuring device 10.

16. 发明专利

JPH08293281A MASS SPECTROMETER 失效
公开(公告)号：JPH08293281A
公开(公告)日：1996-11-05
申请号：JP9471995
申请日：1995-04-20
申请人： HITACHI LTD
发明人： NABESHIMA TAKAYUKI , SAKAIRI MINORU , TAKADA YASUAKI , HIRABAYASHI TSUDOI , KOIZUMI HIDEAKI
IPC分类号： G01N27/62 , G01N30/72 , H01J49/14
摘要： PURPOSE: To provide an ion trap type mass spectrometer which greatly improves the efficiency of detecting ions for analysis by preventing an ion-molecule reaction from occurring inside an ion trap type mass spectrometry part, and enabling ions to be confined within the spectrometry part for a long time and accumulated. CONSTITUTION: An electron impact ion source part 1-3 is provided independently at a front stage of an ion trap type mass spectrometry part 1-9, sample gas molecules from a gas chromatograph 1-1 are introduced into the ion source part 1-3 and ionized, and the generated ions of the sample molecules are introduced into the ion trap type mass spectrometry part 1-9 via an ion introducing part 1-5. After the ions are confined there for a long time and accumulated, high-frequency voltage values applied to the electrodes 1-6, 1-7, 1-8 of the spectrometry part 1-9 are uniformly scanned, and the accumulated ions are released into an ion detecting part 1-12 for each mass to analyze the sample molecules.

17. 发明专利

JPH08201369A MASS SPECTROMETER 失效
公开(公告)号：JPH08201369A
公开(公告)日：1996-08-09
申请号：JP1123995
申请日：1995-01-27
申请人： HITACHI LTD
发明人： HIRABAYASHI TSUDOI , SAKAIRI MINORU , TAKADA YASUAKI , KOIZUMI HIDEAKI
IPC分类号： G01N27/62 , G01N27/447 , G01N30/72 , H01J49/26
摘要： PURPOSE: To provide a high-sensitivity mass spectrometer capable of surely separating and analyzing a mixed sample solution. CONSTITUTION: A sample separated by a sample separation section 1 is detected by a separated constituent detection section 2, then it is converted into gassy ions by an ionization section 3, ions are stored at an ion storage section 4, mass spectrometry is applied to ions by a mass spectrometry section 5, and ions are detected by an ion detection section 6. The control signal for the ion storage section 4 or the mass spectrometry section 5 is outputted by a calculation section 7 based on the output of the separated constituent detection section 2. The introduction of ions into the ion storage section 4 and the control of the ion storage section 4 or the mass spectrometry section 5 are synchronized, and ions can be surely analyzed with high sensitivity.

18. 发明专利

JPH08166371A MASS ANALYZER 失效
公开(公告)号：JPH08166371A
公开(公告)日：1996-06-25
申请号：JP31196594
申请日：1994-12-15
申请人： HITACHI LTD
发明人： SAKAIRI MINORU , HIRABAYASHI TSUDOI , TAKADA YASUAKI
IPC分类号： G01N27/62 , G01N30/72 , H01J49/06
摘要： PURPOSE: To perform analysis by introducing the ion, which is generated in an atmospheric ion source, efficiently into an ion-trap mass spectrometer. CONSTITUTION: At the differential air exhaust part of an atmospheric ion source, the screening plate having a second nozzle 7 is provided between a nozzle 5 and a skimmer 9 in this constitution. The hypersonic flow region generated immediately after the nozzle 5 is compressed, and the gasification efficiency of droplets is enhanced. Thus, the clustering of ions is suppressed, and the ions are analyzed with high sensitivity.

19. 发明专利

JP2014059268A Attached substance inspection apparatus 有权
标题翻译：附件物质检查装置
公开(公告)号：JP2014059268A
公开(公告)日：2014-04-03
申请号：JP2012205774
申请日：2012-09-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KASHIMA HIDEO , SUGAYA MASAKAZU , TERADA KOICHI , SUZUKI YASUTAKA , NAGANO HISASHI , TAKADA YASUAKI , HASHIMOTO YUICHIRO
IPC分类号： G01N1/02 , G01N1/22 , G01N27/62
CPC分类号： G01N1/2211 , G01N1/22 , G01N2001/022 , G01N2001/028 , H01J49/0422
摘要： PROBLEM TO BE SOLVED: To identify sample fine particles attached to an inspection target simply and highly accurately, improve operation rate, and downsize an apparatus.SOLUTION: Compressed gas is sprayed from air nozzles onto an inspection target conveyed to a sampling chamber which is defined by a pair of sidewalls and an upper wall surrounding a part of a conveyance path by a conveyance section, peeled sample fine particles are sucked into a collector, the sample fine particles are separated from the sucked gas and analyzed. The air nozzles are arranged on one sidewall which defines the sampling chamber, and the collector is arranged under the other sidewall as a container separate from the sampling chamber.
摘要翻译：要解决的问题：简单高精度地识别附着在检查对象上的样品微粒，提高操作速度，减小设备尺寸。解决方案：将压缩气体从空气喷嘴喷射到传送到定义的采样室的检查目标上通过一对侧壁和通过输送部围绕输送路径的一部分的上壁，将剥离的样品微粒吸引到集尘器中，将样品微粒与吸入的气体分离并进行分析。空气喷嘴布置在限定采样室的一个侧壁上，并且集电器布置在另一侧壁下方，作为与采样室分离的容器。

20. 发明专利

JP2009037819A Mass spectrometer and mass spectrometry 有权
标题翻译：质谱仪和质谱仪
公开(公告)号：JP2009037819A
公开(公告)日：2009-02-19
申请号：JP2007200298
申请日：2007-08-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUGIYAMA MASUYUKI , HASHIMOTO YUICHIRO , HASEGAWA HIDEKI , TAKADA YASUAKI
IPC分类号： H01J49/42 , G01N27/62
CPC分类号： H01J49/0045
摘要： PROBLEM TO BE SOLVED: To solve a problem that detection sensitivity and throughput cannot be achieved at the same time in a conventional MS and MS method.
SOLUTION: The mass spectrometer has: an ion trap for discharging ions of a specific mass dimension; a collision and dissociation part for dissociating ions discharged from the ion trap; a mass spectrometry part for carrying out mass spectrometry of ions discharged from the collision and dissociation part; and a control part having a list in which measuring conditions of each ion is stored, and resonates and discharges the ions introduced and accumulated into the ion trap selectively by mass. The scan operation is composed of a repetition of an operation to discharge specific precursor ions in the collision and dissociation part direction and an operation not to discharge, and controls the output voltage of each part by referring to the information of the list. Accordingly, each ion can be measured by an optimum condition; and a mass spectrometry capable of MS and MS measurement having a high sensitivity and a high throughput is achieved.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了解决在常规MS和MS方法中同时无法实现检测灵敏度和吞吐量的问题。解决方案：质谱仪具有：用于排出特定质量尺寸的离子的离子阱; 用于离解从离子阱排出的离子的碰撞和解离部分; 用于进行从碰撞和解离部分排出的离子的质谱的质谱部分; 以及具有其中存储每个离子的测量条件的列表的控制部分，并且选择性地将引入并累积到离子阱中的离子进行谐振和放电。扫描操作由重复在碰撞和解离部分方向排出特定前体离子的操作和不排放的操作组成，并且通过参考列表的信息来控制每个部分的输出电压。因此，可以通过最佳条件测量每个离子; 并且实现了具有高灵敏度和高通量的能够进行MS和MS测量的质谱。版权所有（C）2009，JPO＆INPIT

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