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    • 2. 发明专利
    • Liquid chromatograph auto-sampler
    • 液相色谱自动采样器
    • JP2014106213A
    • 2014-06-09
    • JP2012261843
    • 2012-11-30
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • HARADA YUJIOTSUBO AYANOITO MASATO
    • G01N30/16G01N30/20G01N30/26
    • PROBLEM TO BE SOLVED: To provide a method for providing a weighing bulb separate from a passage switch valve and weighing a sample in a passage provided in a seal to accurately inject the minute quantity of the sample.SOLUTION: A liquid sample introduction device for a liquid chromatograph comprises: a weighing bulb having a plurality of passages capable of storing the predetermined quantity of sample; a liquid sample introduction part for weighing and sucking the sample to introduce the sample into the passages provided in the weighing bulb; and a passage switch valve for switching the passages so as to introduce the sample introduced into the passages provided in the weighing bulb into a mobile phase passage.
    • 要解决的问题:提供一种用于提供与通道切换阀分开的称重灯泡并在设置在密封件中的通道中称量样品以精确地注入微量样品的方法。解决方案:一种液体样品引入装置, 液相色谱仪包括:具有能够存储预定量样品的多个通道的称重灯泡; 用于称量和吸取样品以将样品引入设置在称重灯泡中的通道中的液体样品引入部分; 以及通道切换阀,用于切换通道,以将引入到设置在称重灯泡中的通道的样品引入流动相通道。
    • 4. 发明专利
    • Liquid chromatograph device
    • 液相色谱仪
    • JP2012145595A
    • 2012-08-02
    • JP2012105591
    • 2012-05-07
    • Ajinomoto Co IncHitachi High-Technologies Corp味の素株式会社株式会社日立ハイテクノロジーズ
    • MARUOKA KANTAROFUKUDA MASATOTOMITA KOJIOKUZAWA KAZUHIKOMINAMOTO NORIMASAKUBO SHINTAROTSUTSUDA KOUJIYOSHIDA MASAAKIITO MASATOOZAWA SHINICHI
    • G01N30/02
    • PROBLEM TO BE SOLVED: To provide an automated liquid chromatograph device, which can respond to such needs by recent users that they want to relatively easily operate liquid chromatography devices without participating in special educational training on liquid chromatography.SOLUTION: Automation in purging and bubbling can be achieved by controlling a high pressure change-over valve and an electromagnetic valve, respectively, by a time program. However, when these operations are always controlled by a given time program, an intelligent automated device is no longer obtained because of excessive purging or excessive bubbling. Thereby, it is required to scheme a process flow that takes knowledge of experts for achieving intelligent control. In the case of purging, it is preferable to control purging depending on a time period that a pump is stopped, such that a purging period is decreased with a shorter stop time, and the purging period is increased with a longer stop time.
    • 要解决的问题:提供一种自动化液相色谱装置,其可以响应最近用户的这种需要,以便他们想要相对容易地操作液相色谱装置,而不参加液相色谱的特殊教育培训。 解决方案:通过时间程序分别控制高压转换阀和电磁阀可以实现吹扫和起泡中的自动化。 然而,当这些操作总是由给定的时间程序控制时,由于过量的吹扫或过多的起泡,不再获得智能自动化设备。 因此,需要制定一个掌握专家知识以实现智能控制的流程。 在清洗的情况下,优选根据泵的停止时间来控制清洗,使得清洗期间以较短的停止时间减少,并且清洗期间以更长的停止时间增加。 版权所有(C)2012,JPO&INPIT
    • 5. 发明专利
    • Separation column for liquid chromatography and liquid chromatography
    • 液相色谱和液相色谱分离柱
    • JP2012008061A
    • 2012-01-12
    • JP2010145772
    • 2010-06-28
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • SHIMIZU KATSUTOSHIITO MASATO
    • G01N30/88
    • PROBLEM TO BE SOLVED: To provide a separation column for liquid chromatography achieving a high-speed separation and analysis without lowering a column performance even if enhancing a linear velocity, and to provide liquid chromatography.SOLUTION: A monolith type separation column incorporates a monolith rod formed into a columnar shape in the separation column, a specimen and a moving phase flow into the monolith rod, and the monolith rod is alternately provided with portions having pores and portions without pores. The monolith rod is configured such that porous bodies having pores and portions without pores are alternately disposed in the specimen flowing direction. Alternatively, the portions having pores are porous bodies and the portions without pores are non-porous beads.
    • 要解决的问题:提供用于液相色谱的分离柱,即使提高线速度也能实现高速分离和分析,而不降低色谱柱性能,并提供液相色谱。 解决方案:整体式分离塔包括在分离柱中形成为柱状的整料,样品和移动相流入整料,并且整料棒交替地设置有具有孔和部分的部分,没有 毛孔。 整料杆构造成使得具有孔和不带孔的部分的多孔体在试样流动方向上交替地设置。 或者,具有孔的部分是多孔体,没有孔的部分是无孔珠粒。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • Mixer and liquid analyzer
    • 混合器和液体分析仪
    • JP2008261880A
    • 2008-10-30
    • JP2008176432
    • 2008-07-07
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • OOHASHI TOMOKISASAKI YASUHIKOITO MASATOKACHI HIRONORI
    • G01N30/34B01F3/08B01F5/02B01F5/06B01F13/00B01F15/02
    • B01F5/0256B01F13/0059
    • PROBLEM TO BE SOLVED: To provide a mixer capable of mixing two kinds of liquids with each other while varying a mixing ratio in a wide range of the flow rates thereof by causing the two liquids in trace amounts to come into contact with each other, or a mixer capable of mixing them in short time. SOLUTION: This mixer is composed of a very thin mixing chamber for effecting mixing reaction, and micro-nozzles, provided at a high density on the upper and lower faces thereof. The mixer is structured such that the micro-nozzles are arranged on the inner walls of the mixing chamber to oppose each other, and the two liquids are spurted from the micro-nozzles, thereby implementing mixing by taking advantage of a diffusion phenomenon. Since the two liquids in trace amounts are ejected from the micro-nozzles in such a way as to oppose each other, the two liquids in trace amounts come into contact with each other, thereby enabling diffusion mixing in short time. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种混合器,其能够通过使两种微量液体与每种液体接触而在宽的流速范围内改变混合比,从而将两种液体彼此混合 或者混合器能够在短时间内混合它们。 解决方案:该混合器由用于进行混合反应的非常薄的混合室和在其上表面和下表面上以高密度提供的微喷嘴组成。 混合器被构造成使得微喷嘴布置在混合室的内壁上彼此相对,并且两个液体从微喷嘴喷出,从而通过利用扩散现象来实现混合。 由于微量的这两种液体从微喷嘴以彼此相对的方式喷出,所以痕量的两种液体彼此接触,从而能够在短时间内进行扩散混合。 版权所有(C)2009,JPO&INPIT
    • 9. 发明专利
    • Liquid chromatography
    • 液相色谱
    • JP2008256654A
    • 2008-10-23
    • JP2007101780
    • 2007-04-09
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • KUBO SHINTAROTONO HIROYUKIITO MASATO
    • G01N30/24G01N30/20G01N30/26
    • PROBLEM TO BE SOLVED: To improve the analysis throughput without reducing the accuracy of analysis.
      SOLUTION: The liquid chromatography includes an analysis column, a detector to detect components separated in the analysis column, a pump to transfer a mobile phase of liquid and an analysis sample to the analysis column, a needle to suck a sample and inject it into aninjection port and suck washing liquid and injecting it into a washing port, a measuring syringe to eject the sample and washing liquid, and two sample loops communicating the needle with the tip. The chromatography is equipped with a sample inlet flow channel selector valve and a measuring flow channel selector valve. The sample inlet flow channel selector valve has a function to change communications among the analysis column, pump, injection port, and two sample loops. The measuring flow channel selector valve has a function of alternatively communicating the measuring syringe to the washing liquid supply side, washing port, and the sample inlet flow channel selector valve.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提高分析吞吐量,而不降低分析的准确性。 解决方案:液相色谱法包括分析柱,检测分析柱中分离成分的检测器,将液体流动相和分析样品转移到分析柱的泵,吸取样品的针头和注射 将其注入入口并吸入洗涤液并将其注入清洗口,测量注射器以喷射样品和洗涤液体,以及将针与尖端连通的两个样品回路。 色谱仪配有样品入口流道切换阀和测量流路切换阀。 样品入口流道切换阀具有改变分析柱,泵,注射口和两个样品环之间的通讯功能。 测量流路切换阀具有将测量注射器交替地连通到洗涤液供给侧,洗涤口和样品入口流路切换阀的功能。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Liquid chromatograph
    • 液相色谱
    • JP2008224559A
    • 2008-09-25
    • JP2007065977
    • 2007-03-15
    • Hitachi High-Technologies Corp株式会社日立ハイテクノロジーズ
    • SHIMIZU KATSUTOSHIITO MASATO
    • G01N30/86G01N30/88
    • PROBLEM TO BE SOLVED: To overcome differences in results of analysis due to column-by-column variations of attribute parameters of separation columns such as a monolithic-type column.
      SOLUTION: On the basis of the volume V
      0 of a filler in a separation column and a non-retention time t
      0 of an analysis sample, attribute parameters of separation columns such as a monolithic-type column, a pumping rate F of a liquid chromatograph is adjusted as an adjustment parameter in such a way that values of non-retention time t
      0 of the analysis sample between separation columns, and between liquid chromatographs results in the same value. The liquid chromatograph performs measurement as above.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了克服分析结果的差异,这是由于分离柱(如单片型柱)的属性参数的逐列变化引起的。 解决方案:基于分析柱中的填料的体积V 0 和分析样品的非保留时间t 0 ,属性参数 分离柱如单片型柱,将液相色谱仪的泵送速率F调节为调节参数,使得分离样品在分离时的非保留时间t 0 的值 柱和液相色谱之间产生相同的值。 液相色谱仪如上所述进行测量。 版权所有(C)2008,JPO&INPIT