公开(公告)号：JP2008157671A

公开(公告)日：2008-07-10

申请号：JP2006344370

申请日：2006-12-21

Applicant: Shimadzu Corp ,  株式会社島津製作所

Inventor： KITAOKA MITSUO ,  ITOI HIROTO ,  NAKAMURA KAZUO ,  YAMAUCHI KAZUO ,  OKADO TAKAO

IPC: G01K13/00 ,  G01N27/62 ,  H01J49/40

Abstract: PROBLEM TO BE SOLVED: To correctly grasp the shift in the mass axis of a mass spectrum, even if the ambient temperature changes sharply in the surrounding of a vacuum chamber that enclosed the flight tube, which is caused by this change, and where the user can find out if the shift deviates from the accuracy of the specifications of an apparatus. SOLUTION: A step response of the shift of the mass axis is previously measured, when the temperature is changed in the vacuum chamber 1, in steps. A parameter that represents a transfer function, based on the response, is stored in the transfer function storage 21. A mass shift calculating section 22 estimates the current shift of the mass axis from the current temperature in the vacuum chamber 1, obtained by a second temperature sensor 24 and the transfer function stored in the storage 21, when an analysis is implemented. An abnormality determining section 23 determines whether the shift is within an acceptable range. When the shift exceeds acceptable range, an annunciation section 25 arouses the attention of the user. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了正确掌握质谱质量轴的偏移，即使周围温度由包围飞管的周围的温度急剧变化，这是由这种变化引起的，以及 其中用户可以发现该偏移是否偏离设备的规格的精度。 解决方案：当真空室1中的温度变化时，预先测量质量轴的偏移的阶跃响应。 基于该响应表示传递函数的参数被存储在传递函数存储器21中。质量偏移计算部22估计质量轴当前从真空室1中的当前温度的移位， 温度传感器24和存储在存储器21中的传递函数。 异常判定部23判定移动是否在可接受范围内。 当移动超过可接受的范围时，通知部分25引起用户的注意。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2001242149A

公开(公告)日：2001-09-07

申请号：JP2000053994

申请日：2000-02-29

Applicant: SHIMADZU CORP

Inventor： KITAOKA MITSUO

IPC: G01N1/04 ,  G01N30/02

Abstract: PROBLEM TO BE SOLVED: To enhance handle ability for a liquid chromatograph by achieving effective utilization of a reservoir tray 11. SOLUTION: A drawer-structured housing part 23 is arranged below a reservoir tray 11, thereby enabling housing of necessary tool replacement parts or the like.

公开(公告)号：JPH11173978A

公开(公告)日：1999-07-02

申请号：JP36226797

申请日：1997-12-10

Applicant: SHIMADZU CORP

Inventor： KITAOKA MITSUO

IPC: G01N35/08 ,  G01N21/27 ,  G01N21/33 ,  G01N30/74

Abstract: PROBLEM TO BE SOLVED: To obtain an ultraviolet and visible absorbance detector in which the stability of a baseline is enhanced and in which the stabilization time of the baseline is shortened after a light-source lamp is turned on. SOLUTION: Light from a D2 lamp 35 is condensed, e.g. by a circular opening part 40 in an incident slit 39 by using a condensing lens 37. Light which is passed through the opening part 40 is spectrally separated by a grating 43, and its image is formed by a cylindrical mirror 41 and by the grating 43. A sample cell and a hole for reference in a flow cell part 45 are put into a length in a direction perpendicular to the dispersion direction of the image. As a result, even when the spatial distribution of a light emitting part is changed, light in the same light emitting part can be made incident on the sample cell and on the hole for reference.

公开(公告)号：JPH10185893A

公开(公告)日：1998-07-14

申请号：JP34571696

申请日：1996-12-25

Applicant: SHIMADZU CORP

Inventor： KITAOKA MITSUO

IPC: G01N30/26 ,  G01N30/34

Abstract: PROBLEM TO BE SOLVED: To provide a liquid chromatograph with a small capacity using a mixer with high mixing performance. SOLUTION: The mixer 5 connected to the downstream side from a joint part 4 comprises a small-diameter solvent channel 5a, a medium container 5c in which a vibration transmitting medium 5b is sealed and which is provided so as to surround the solvent channel 5a, and an ultrasonic generating means 5d for providing ultrasonic vibrations to the medium container 5c and mixes an eluant by applying ultrasonic vibrations to a solvent flowing in the solvent channel 5a.

公开(公告)号：JPH09145701A

公开(公告)日：1997-06-06

申请号：JP31076995

申请日：1995-11-29

Applicant: SHIMADZU CORP

Inventor： KITAOKA MITSUO

IPC: G01N30/32 ,  G01N30/36 ,  G01N30/86

Abstract: PROBLEM TO BE SOLVED: To provide a liquid chromatography device with safety measures for rapidly detecting the leakage of the channel of an entire system with a simple configuration. SOLUTION: This device is provided with a flow-rate setting means 20 for setting the flow rate of a liquid discharged from a liquid feeding pump 10, a means for controlling the liquid feeding pump so that the flow rate set by the flow-rate setting means 20 can be fed, a flow-rate sensor 16 provided at a downstream of a component located at the most downstream side, and a means for comparing a flow-rate value measured by the flow-rate sensor 16 and a flow rate set by the flow-rate setting means 20. Then, it is judged that liquid leaks when a measurement flow-rate value is smaller than the set flow- rate value.

公开(公告)号：JPH08233659A

公开(公告)日：1996-09-13

申请号：JP4103495

申请日：1995-02-28

Applicant: SHIMADZU CORP

Inventor： KITAOKA MITSUO

IPC: G01J3/36 ,  G01N21/27

Abstract: PURPOSE: To provide a spectrophotometer by which a drift is reduced and temperature stability is enhanced even in a single beam system spectrophotometer using a photodiode array. CONSTITUTION: In a spectrophotometer to detect the light sent from light source chambers 3 and 4 by a photodiode array 16 of a polychromator chamber 17 after passing it through a flow cell 13 in a front optical part 18, one ends of heat pipes 19 and 20 are brought into close contact with the light source chambers 3 and 4, and the other ends of the heat pipes 19 and 20 are exposed outside of a shielding wall 21, and a cooling fun 22 is arranged to cool a heat pipe part appearing outside, and heat of the light source chambers is effectively removed by the heat pipes 19 and 20, and a photometric optical chamber 18 and the polychromator chamber 17 are prevented from being directly influenced by a cooling fan 22.

公开(公告)号：JP2504356B2

公开(公告)日：1996-06-05

申请号：JP11795292

申请日：1992-04-09

Applicant: SHIMADZU CORP

Inventor： KITAOKA MITSUO

IPC: G01N21/41 ,  G01N30/74

Abstract: In order to satisfy both of high-sensitivity and low-sensitivity applications with no replacement of a flow cell, a photodetector (30) is divided into four portions (44-1, 44-2, 44-3, 44-4) by a first straight line (40) which is perpendicular to a direction of movement of a slit image (6) and a second straight line (42) which is inclined with respect to the direction of movement of the slit image (6) to intersect with the first straight line (40). Assuming that S1, S2, S3 and S4 represent intensity levels of detection signals of the photodetector portions respectively, the signals are processed along the following equations in analysis and preparative modes respectively: Sa=c{(S2+S3)-(S1+S4)}/{(S2+S3)+(S1+S4)]} Sp=c{(S1+S2)-(S3+S4)}/{(S1+S2)+(S3+S4)]}.

公开(公告)号：JPH07239298A

公开(公告)日：1995-09-12

申请号：JP3028094

申请日：1994-02-28

Applicant: TOYAMA PREFECTURE ,  HAYAKAWA KAZUICHI ,  MIYAZAKI GENICHI ,  SHIMADZU CORP

Inventor： YAMAMOTO ATSUSHI ,  MATSUNAGA AKINOBU ,  MIZUKAMI HIDEKAZU ,  HAYAKAWA KAZUICHI ,  MIYAZAKI GENICHI ,  NISHIMURA MASAYUKI ,  KITAOKA MITSUO ,  FUJITA TOMIO

IPC: G01N21/19 ,  G01N21/21 ,  G01N30/88

Abstract: PURPOSE:To analyze an optically active substance without receiving the effect of impurities by arranging a pair of light transmission cells and mutually differ entiating the phases of the polarizers provided behind the cells. CONSTITUTION:When the substance to be measured eluted from a column is split to enter a light transmission cell on a sample side S and a light transmission cell on a reference side R, the light spectrally diffracted by the grating present in front of the cells is incident. At this time, the light becomes plane polarized light (intensity Io) by the polarizer T provided in front of the cells R, S. The polarizers U, V provided behind the cells R, S are set to different phases and the intensity ratio Is/Ir of both transmitted lights is theoretically constant so far as an optically active substance is not present. When an optically active substance rotating the polarizing surfaces of the polarizers right (left) enters, Is becomes small (large) and Ir becomes large (small). When Is and Ir are logarithmically converted to be subtracted, the part resulting from absorption is set off and only a component resulting from optical rotation remains. That is, when the phases of the polarizers U, V are inverse, the component resulting from optical rotation is doubled.

公开(公告)号：JPH0619329B2

公开(公告)日：1994-03-16

申请号：JP25701984

申请日：1984-12-04

Applicant: SHIMADZU CORP

Inventor： MATSUMOTO SHINGO ,  KITAOKA MITSUO

IPC: G01N21/41 ,  G01J1/16 ,  G01N30/74

公开(公告)号：JPH05142143A

公开(公告)日：1993-06-08

申请号：JP30755791

申请日：1991-11-22

Applicant: SHIMADZU CORP

Inventor： KITAOKA MITSUO

IPC: G01N21/27 ,  G01N30/74 ,  G01N30/86

Abstract: PURPOSE:To obtain the title method by which a spectrum can be accurately collected even in an on-flow state. CONSTITUTION:After emitting light having a wavelength lambda0 and monitoring the output of an optical sensor 8 in an on-flow state, the rotation of a grating 7 is started at appropriate timing tA. By rotating the grating 7 and successively storing the output signal of the sensor 8 in a memory 12, scanning is performed with the emitted light until the wavelength of the light changes from lambda1 to lambda2 and, after scanning, the wavelength is returned to lambda0. Then the error of the measured data stored in the memory 12 associated with the concentration change of a sample to be measured is removed by correcting the data by utilizing the scan starting time tA scan terminating time tB, and the levels PA an PB of the output signal against the wavelength lambda0 immediately before starting and immediately after terminating the scanning.