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公开(公告)号：JPH03162651A
公开(公告)日：1991-07-12
申请号：JP30237189
申请日：1989-11-20
Applicant: SHIMADZU CORP
Inventor： KITAOKA MITSUO
Abstract: PURPOSE:To obtain the differential refractometer which has good reproducibility and good stability by providing an A/D converter which converts the outputs of a couple of optical sensors into digital signals and an arithmetic part which divides the difference between the couple of the digitized optical sensor outputs by the sum of the couple of the optical sensor outputs to obtain a refractive index difference signal. CONSTITUTION:The outputs of the couple of the optical sensors which photodetect light refracted by a flow cell to obtain the signals corresponding to the refractive index difference are converted by A/D converters 26-1 and 26-2 into the digital signals V1, V2. The arithmetic part 30 divides the difference (V1-V2) between the digitized optical sensor outputs V1 and V2 by the sum (V1+V2) of those signals to correct variation in light quantity. The arithmetic part 30 multiplies the arithmetic value after the light quantity variation is corrected by a proportional constant K from a proportional constant setting part 32 so as to obtains the signal of the refractive index difference, which is outputted. The constant K is found by using a standard material so that the division result is the refractive index difference, and stored in the propor tional constant setting part 32.
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公开(公告)号：JPH02227637A
公开(公告)日：1990-09-10
申请号：JP4779889
申请日：1989-02-28
Applicant: SHIMADZU CORP
Inventor： KITAOKA MITSUO
IPC: G01N21/64
Abstract: PURPOSE:To exactly measure fluorescence with high accuracy by providing a concave mirror around an optical cell which is transparent to UV and visible light, passing a sample to be measured in the direction of the central line of the optical cell and passing excitation light along the central line. CONSTITUTION:A cell 3 made of quartz, an elliptical mirror 4 and an optical system 5 are provided in a casing 2. The eluate from the column of high- performance liquid chromatograph is admitted from a stainless steel pipe 11 into the cell 3 and is discharged from a stainless steel pipe 16. The eluate is excited by the incident excitation laser light from an optical fiber 6 to emit the fluorescence 2 while flowing in the cell 3. This fluorescence 25 is reflected by a reflecting surface 26 of the mirror 4 and is condensed to a focus 27. The fluorescence 25 collected at the focus 27 is collimated by a collimator lens 17a and the unnecessary scattered light is removed therefrom by a filter 18. This light is condensed by a focusing lens 17b onto a photoelectron multiplier 19. The current proportional to the condensed fluorescence obtd. by the multiplier 19 is amplified by an amplifier 21. The fluorescent intensity is determined and is recorded in a recorder 22.
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公开(公告)号：JPH02201842A
公开(公告)日：1990-08-10
申请号：JP2223789
申请日：1989-01-31
Applicant: SHIMADZU CORP
Inventor： KURODA SHINICHI , YOSHIDA TOSHIHIKO , KITAOKA MITSUO
Abstract: PURPOSE:To easily form a pin-hole in a short time by providing a work-assisting material made of a laser beam transmitting material in a state adhered to the rear surface and irradiating the front surface with a laser beam to form a pin-hole through which charged particles pass. CONSTITUTION:A swelling part 1a of a charged particle passage limiting member 1 is supported to be projected, and a work-assisting material 3 such as vinyl tape, through which a laser beam L radiated from above through a condenser lens 2 is transmitted, is provided in adherence with the lower surface of the member 1. When the laser beam L is incident on the upper surface of the member 1 under the presence of shield gas such as Ar, firstly a part of the surface of the member 1 is fused and evaporated to form a pin-hole 1b. At that time, the work-assisting material 3 is not fused even when it is irradiated by the beam L due to its transmitting property, so that the pin-hole 1b is formed in a state plugged up at the lower end thereof. Therefore, the fused material and the evaporated material are emitted and removed upwardly, so that when the assisting material 3 is removed subsequently, the pin-hole 1b having sharp edge can be obtained.
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公开(公告)号：JPS63243822A
公开(公告)日：1988-10-11
申请号：JP8038987
申请日：1987-03-31
Applicant: SHIMADZU CORP
Inventor： KITAOKA MITSUO , MITO YASUTAKA
Abstract: PURPOSE:To correct the influence of the secondary light of a diffraction grating and to perform measurement from the ultraviolet-ray range to the visible light range at a time by a single light source by measuring the detection spectrum of an array type detector in the presence and absence of a filter respectively. CONSTITUTION:The filter 14 which has monotonous transmissivity is provided detachably between a light source 2 and a spectrometer 6, in concrete, between the light source 2 and a flow cell 4. Then the detection spectrum of the array type detector 8 provided at the exit position of the spectrometer 6 is measured in the presence and absence of the filter 14. The real spectrum I0(lambda) is calculated from I0(lambda)=I(lambda)-K(lambda/2)I(lambda/2) and K(lambda/2)=[I(lambda)T(lambda)-I'(lambda)]/{I(lambda/2)[T(lambda)-T(l ambda/2)]}, where I0(lambda) is the real spectrum in a wavelength range where there is the influence of the secondary light, I(lambda) the apparent spectrum measured value under the influence of the secondary light in the absence of the filter, and I'(lambda) the measured spectrum in the presence of the filter. Here, lambda is the wavelength and T(lambda) is the transmissivity of the filter.
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公开(公告)号：JPS63243726A
公开(公告)日：1988-10-11
申请号：JP7927987
申请日：1987-03-30
Applicant: SHIMADZU CORP
Inventor： KITAOKA MITSUO
Abstract: PURPOSE:To simultaneously measure absorption spectra over the entire region from an ultraviolet region to a visible region, by providing a filter shielding ultraviolet rays to the front surface of the photodetector for detecting the visible region among the photodetectors of a photodiode array. CONSTITUTION:The window material 20 of a photodiode array 12 is divided into the part 12a of the element used in an ultraviolet region and the part 12b corresponding to a visible region and the boundary of both parts is set so as to come to the part of an element receiving light of 350-360nm. Coating 18 having a transmission spectrum shown by a drawing is applied to the part corresponding to the element on the side of the visible region of the surface of the window material 20. The transmission spectrum of this coating 1 has a characteristic shielding light having a wavelength shorter than 300nm but sufficiently transmitting light having a wavelength longer than 350nm. For example, the coating 18 can be realized by forming a dielectric layer film composed of zirconium oxide or SiO2 by a vapor deposition method. By this method, the absorbancies extending from the ultraviolet region to the visible region can be simultaneously measured.
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Patent Agency Ranking
公开(公告)号：JPS5961750A
公开(公告)日：1984-04-09
申请号：JP17262982
申请日：1982-09-30
Applicant: Shimadzu Corp
Inventor： KITAOKA MITSUO
CPC classification number: G01N21/1702
Abstract: PURPOSE:To enable high sensitivity detection by a continuous spectrum even in an ultraviolet region, by using a mercury-xenon lamp as a light source. CONSTITUTION:Light passing through a diffraction grating 6, a light blocking plate 7 and an optical chopper means 9 from a light source 2 is incident to a photoacoustic cell 10 having a specimen stored therein and the sound corresponding to the specimen is generated to perform the specimen analysis through a piezoelectric resistance effect element 11. When a mercury-xenon lamp is used as the light source 2, it is unnecessary to align a radiation wavelength to an absorption wavelength as in the case using monochromatic light as a continuous spectrum by wavelength-spectroscopic energy characteristics and high sensitivity detection can be performed over a wide wavelength band even in an ultraviolet region.
Abstract translation: 目的：通过使用水银氙灯作为光源，即使在紫外线区域中也能通过连续光谱进行高灵敏度检测。 构成：通过来自光源2的衍射光栅6，遮光板7和光斩波器装置9的光入射到其中存储有样本的光声单元10，并且产生与样本相对应的声音，以执行 通过压电电阻效应元件11进行样本分析。当使用水银氙灯作为光源2时，与使用单色光作为连续光谱的情况相比，不需要将辐射波长对准吸收波长， 即使在紫外线区域中也可以在宽波长带上进行光谱能量特性和高灵敏度检测。
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公开(公告)号：JP2008256530A
公开(公告)日：2008-10-23
申请号：JP2007098982
申请日：2007-04-05
Applicant: Shimadzu Corp , 株式会社島津製作所
Inventor： KITAOKA MITSUO , ODA RYUTARO , GUNJI MASAHIDE
CPC classification number: G01N21/645 , G01N21/0332 , G01N21/05 , G01N30/74 , G01N2021/6482
Abstract: PROBLEM TO BE SOLVED: To improve the reproducibility of the detection result of a fluorescence detector without having to cause the cost of system configuration to increase.
SOLUTION: A flow cell 2 is accommodated in a temperature control block 6 for a sample. A photodetector 12 that detects fluorescence from a sample is accommodated in a temperature control block for a photodetector. A temperature control section 11 on the lower side of the flow cell 2, that comprises a thermally conductive simultaneous temperature control block 10 and a Peltier element 8 as a temperature control mechanism contacted to the simultaneous control block that cools or heats the simultaneous temperature control block 10. The simultaneous temperature control block 10 is integrated with the temperature control block 6 for the sample and the temperature control block 14 for the photodetector. With the integration of the temperature control block 14 for the photo-detector 14 and the simultaneous temperature control block 10, the temperature of the photodetector 12 is controlled at a fixed temperature.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提高荧光检测器的检测结果的再现性，而不必导致系统配置的成本增加。 解决方案：流动池2容纳在用于样品的温度控制块6中。 检测来自样品的荧光的光检测器12容纳在用于光电检测器的温度控制块中。 在流动池2的下侧的温度控制部11，其包括导热同时温度控制块10和作为与同时控制块接触的温度控制机构的珀耳帖元件8，该同时控制块冷却或加热同时温度控制块 同时温度控制块10与用于样品的温度控制块6和用于光电检测器的温度控制块14集成。 通过用于光电检测器14和同时温度控制块10的温度控制块14的集成，光电检测器12的温度被控制在固定温度。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008180567A
公开(公告)日：2008-08-07
申请号：JP2007013342
申请日：2007-01-24
Applicant: Shimadzu Corp , 株式会社島津製作所
Inventor： KITAOKA MITSUO
Abstract: PROBLEM TO BE SOLVED: To provide a fluorometric spectrophotometer capable of efficiently condensing the fluorescence emitted from a sample to a detector and enhancing detection sensitivity.
SOLUTION: The fluorometric spectrophotometer is constituted so that the sample flowing through a cylindrical flow cell 11 is irradiated with the exciting light emitted from an exciting optical system and the fluorescence emitted from the sample is detected by a fluorometric spectroscope 25. The exciting optical system is arranged so that the exciting light is thrown axially from the cell window 18 of the flow cell 11. A reflecting mirror 17 surrounds the peripheral surface of the flow cell 11 and reflects the fluorescence emitted from the sample to guide it to the fluorometric spectroscope 25.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供能够有效地将从样品发射的荧光冷凝到检测器的荧光分光光度计，并提高检测灵敏度。 解决方案：荧光分光光度计被构成为使得流过圆柱形流通池11的样品被从激发光学系统发射的激发光照射，并且通过荧光分光镜25检测从样品发射的荧光。令人兴奋的 光学系统被布置成使得激发光从流动池11的电池窗口18轴向抛出。反射镜17围绕流动池11的外周表面并且反射从样品发射的荧光将其引导到荧光 分光镜25.版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2002014084A
公开(公告)日：2002-01-18
申请号：JP2000197500
申请日：2000-06-30
Applicant: SHIMADZU CORP
Inventor： KITAOKA MITSUO
Abstract: PROBLEM TO BE SOLVED: To provide a liquid chromatograph fro gradient elution analysis, that solves such a problem that difference in analysis results among devices are generated, even under identical analysis conditions, and can apply the same analysis conditions to another device universally. SOLUTION: In this liquid chromatograph having a gradient liquid-feeding mechanism for feeding liquid while changing the composition of mobile phase liquid according to a specific program, a sample-injecting mechanism for injecting a sample into the mobile phase liquid, and a controller 10 for controlling them, the value (or a value related to this) of the inner volume of a mobile phase liquid channel from a mixing point M, where a plurality of mobile phase liquids merge to a sample injection point S is stored in the controller 10, the time when the composition of the mobile phase liquid starts to change at the sample injection point S is calculated from the value, and the timing for injecting the liquid at the sample-injecting mechanism is determined, based on the result. Accordingly always simultaneously to starting of the change in the mobile phase composition in a column 6 as soon as the sample enters the column 6 and eliminating the difference in analysis results due to the difference in the inner volume among the devices.
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公开(公告)号：JP2000346805A
公开(公告)日：2000-12-15
申请号：JP16258099
申请日：1999-06-09
Applicant: SHIMADZU CORP
Inventor： MAEDA AIMEI , KITAOKA MITSUO
Abstract: PROBLEM TO BE SOLVED: To make performable reliable quantitative analysis even for a sample with a large temperature coefficient of fluorescent intensity. SOLUTION: A sample solution to arrive at a flow cell 28 reaches a set temperature at all times so as to be measured at a constant temperature by covering a whole sample chamber with a heat insulating material 21 to be cut off thermally from the outside and by keeping the flow cell 28 and a guiding tube 27 for guiding the sample solution to the flow cell 28 at the set temperature by means of a heater 23 as a heating means, a Peltier element 24 as a cooling means, a platinum resistive element 25 as a temperature-detecting means and a temperature-controlling circuit 26. In addition, for detecting fluorescence, employing a photomultiplier having a photoelectric surface made of a material of bialkali compound semiconductor or multialkali compound semiconductor limits the temperature coefficient of the detector to a low level.
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