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    SAMPLE INTRODUCING DEVICE FOR ION MOBILITY SPECTROMETER, METHOD USING IT AND ION MOBILITY SPECTROMETER
    4.
    发明公开
    SAMPLE INTRODUCING DEVICE FOR ION MOBILITY SPECTROMETER, METHOD USING IT AND ION MOBILITY SPECTROMETER 审中-公开
    进样装置：用于离子迁移谱仪，离子迁移谱仪，用途和方法

    公开(公告)号：EP2492677A4

    公开(公告)日：2014-08-20

    申请号：EP11726316

    申请日：2011-05-04

    申请人： NUCTECH CO LTD

    发明人： CHEN ZHIQIANG ,  LI YUANJING ,  PENG HUA ,  ZHANG ZHONGXIA ,  XUE XIN ,  WANG YAOXIN ,  LIN JIN ,  YANG XIAOHUI

    IPC分类号： G01N27/64 ,  G01N27/62 ,  H01J49/04

    CPC分类号： G01N27/622

    摘要： The present invention discloses a sampling device for an ion migration spectrometer (IMS), comprising: an inner sleeve part, inside of which an inner cavity is defined, one end of the inner sleeve part is connected with an inlet of an migration pipe via an inner-layer channel, and the other end of the inner sleeve part is configured with an inner end cap having an inner opening; and an outer sleeve part, which is configured as an eccentric sleeve that is coaxial with the inner sleeve part and able to rotate with respect to the inner sleeve part, so as to form a sleeve cavity between the inner sleeve part and the outer sleeve part, wherein one end of the outer sleeve part is configured with at least one connecting opening that is selectively connected with the inner-layer channel, and the other end of the outer sleeve part is configured with an outer end cap, on which a first outer opening selectively connected with the inner opening and a second outer opening selectively connected with the sleeve cavity are configured, wherein the outer end cap is configured to be able to rotate between a first location and a second location with respect to the inner end cap, so as to selectively introduce a sample to be detected into the inner-layer channel via one of the inner cavity and the sleeve cavity. Moreover, the present invention further relates to a method for solid and gas sampling by using the above sampling device.

    AIR DRYER FOR ION MOBILITY SPECTROMETER
    5.
    发明公开
    AIR DRYER FOR ION MOBILITY SPECTROMETER 审中-公开
    LUFTTROCKNERFÜRIONENMOBILITÄTSSPEKTROMETER

    公开(公告)号：EP3029714A4

    公开(公告)日：2017-08-02

    申请号：EP15834705

    申请日：2015-06-18

    申请人： NUCTECH CO LTD

    发明人： BAO YUNTAI ,  ZHANG YANGTIAN ,  MA JIANHU ,  ZHOU HAICHAO ,  WU WANGYANG ,  HE WEN ,  ZHANG ZHONGXIA ,  XUE BIN

    IPC分类号： H01J49/04 ,  B01D53/04 ,  B01D53/26 ,  H01J49/00

    CPC分类号： G01N27/622 ,  B01D53/0438 ,  B01D53/261 ,  B01D2257/80 ,  B01D2259/4009

    摘要： Embodiments of the present invention provide an air dryer for an ion mobility spectrometer, comprising a heating element used to heat a thermal conduction device, thereby heating the desiccant. Embodiments of the present invention further provide a regeneration method, by which the operation mode of the ion mobility spectrometer may be switched, so that during a non-working time of the ion mobility spectrometer, the desiccant is heated and thereby regenerated. With the present invention, the desiccant is avoided from being regularly replaced, thereby improving the performance and increasing the service life of the dryer. Regeneration of thedesiccant is performed by making full use of the non-working time of the ion mobility spectrometerwithout affecting normal operation of instrument.

    摘要翻译： 本发明的实施例提供一种用于离子迁移谱仪的空气干燥器，其包括用于加热热传导装置的加热元件，由此加热干燥剂。 本发明的实施例还提供了一种再生方法，通过该再生方法，可以切换离子迁移谱仪的操作模式，使得在离子迁移谱仪的非工作时间期间，干燥剂被加热并由此再生。 通过本发明，避免了干燥剂定期更换，从而提高了干燥机的性能并延长了使用寿命。 充分利用离子迁移谱仪的非工作时间，不影响仪器的正常运行，实现对干燥剂的再生。

    ION MOBILITY SPECTROMETER AND METHOD FOR IMPROVING THE DETECTION SENSITIVITY THEREOF
    6.
    发明公开
    ION MOBILITY SPECTROMETER AND METHOD FOR IMPROVING THE DETECTION SENSITIVITY THEREOF 审中-公开
    用于提高其检测灵敏度离子迁移谱仪和方法

    公开(公告)号：EP2503329A4

    公开(公告)日：2014-07-30

    申请号：EP10831023

    申请日：2010-07-30

    申请人： NUCTECH CO LTD

    发明人： PENG HUA ,  ZHANG ZHONGXIA ,  WANG YAOXIN

    IPC分类号： G01N27/64 ,  G01N27/62 ,  G01N27/68 ,  G01N33/00 ,  H01J49/00

    CPC分类号： G01N27/622 ,  G01N33/0057 ,  Y10T436/163333 ,  Y10T436/182 ,  Y10T436/21 ,  Y10T436/24

    摘要： The present invention relates to a method of improving detection sensitivity of an ion mobility spectrometer, comprising: inserting a sample into a sample receiving device of the ion mobility spectrometer; triggering an operation of spectra acquisition through an optocoupler; when the number of the acquired spectra reaches the level required to contain enough information for accurate detection of explosives with relatively high vapor pressure, adding a dopant instantly to the ionization region by controlling the ON/OFF-state of an electromagnetic valve; when the number of the acquired spectra reaches the level required to contain enough information for accurate detection of explosives with relatively low vapor pressure, stopping the acquisition operation, and turning off the electromagnetic valve so as to stop adding the dopant to the ionization region; analyzing all of the acquired spectra to obtain the detection result. The addition time of the dopant is controlled such that the dopant can take effect on the detection of some explosives with relatively low vapor pressure while the explosives which can be detected with higher sensitivity when no dopant is added can be analyzed in the case that the dopant concentration is very low, thereby achieving the optimal detection performance of the apparatus by taking account of its response to various explosives.