GAS CHROMATOGRAPH-ION MOBILITY SPECTROMETRY COMBINED EQUIPMENT

    公开(公告)号:US20200240961A1

    公开(公告)日:2020-07-30

    申请号:US16714799

    申请日:2019-12-16

    IPC分类号: G01N30/44 G01N30/72

    摘要: The present disclosure discloses a gas chromatograph-ion mobility spectrometry combined equipment, including: a gas chromatograph device for pre-separating a to-be-detected sample to form a pre-separated sample; an ion mobility spectrometry device in fluid communication with an outlet of the gas chromatograph device for detecting the pre-separated sample; and a gas circulating device in fluid communication with a discharged gas interface of the ion mobility spectrometry device for processing a discharged gas from the ion mobility spectrometry device, wherein the gas circulating device is further in gas communication with the gas chromatograph device for conveying a part of the discharged gas to the gas chromatograph device to serve as a carrier gas, which drives the to-be-detected sample to enter the gas chromatograph device. The miniaturization and the portability of the gas chromatograph-ion mobility spectrometry combined equipment are improved.

    SCRUBBING AND SAMPLING DEVICE, CARD READER APPARATUS AND GATE APPARATUS

    公开(公告)号:US20180164194A1

    公开(公告)日:2018-06-14

    申请号:US15826098

    申请日:2017-11-29

    IPC分类号: G01N1/22 G01N33/00

    摘要: It is disclosed a scrubbing and sampling device, a card reader apparatus and a gate apparatus. The scrubbing and sampling device includes: a scrubbing and sampling portion including a first wheel and a second wheel, which are respectively capable of rotating around respective rotating axes, and a scrubbing conveyor belt tensioned by the first wheel and the second wheel and driven by rotation of the first wheel and the second wheel, to move between them; and an desorbing portion configured to desorb properties of an sample that is conveyed into the desorbing portion. The scrubbing conveyor belt is configured to move through the desorbing portion such that the desorbing portion desorbs the sample on the scrubbing conveyor belt when the scrubbing conveyor belt enters the desorbing portion.

    DARKROOM TYPE SECURITY INSPECTION APPARATUS AND METHOD

    公开(公告)号:US20170138902A1

    公开(公告)日:2017-05-18

    申请号:US15271713

    申请日:2016-09-21

    IPC分类号: G01N27/62 G01N1/22 G01N30/72

    摘要: The present invention discloses darkroom type security inspection apparatus and method. An apparatus comprises a housing constituting a closed darkroom, and assemblies disposed inside the housing. The assemblies disposed inside the housing are communicated by fittings or connectors and comprises: a sampling assembly comprising a sample collecting unit and a conveyer unit configured to convey an object to be inspected into the sample collecting unit; a sample processing assembly configured to concentrate and analyze the sample; and, an inspecting assembly configured to inspect composition of the sample by means of a gas chromatographic-ion mobility spectrometer (GC-IMS) or a separated ion mobility spectrometer (IMS). The security inspection apparatus of the present invention can perform the sampling easy, rapidly and effectively and perform the inspection accurately and rapidly without destroying and unpacking an object to be inspected, and thus is suitable for requirements of on-site rapid inspection of forbidden items in the airport, customs and the likes.

    PULSED SAMPLING-BASED ION MOBILITY SPECTROMETER AND SNIFFER

    公开(公告)号:US20210404988A1

    公开(公告)日:2021-12-30

    申请号:US16626767

    申请日:2019-06-12

    IPC分类号: G01N27/622 G01N1/22

    摘要: There are provided an ion mobility spectrometer and a sniffer. The ion mobility spectrometer includes: an ion migration tube; a sampling gas path having a sampling device configured to temporarily store a sample gas collected by a sampling head in a sampling pipe; a sample introduction gas path having two ends in communication with the gas inlet and outlet of the ion migration tube respectively, and configured to introduce a carrier gas within the ion migration tube into the sampling pipe and to carry a sample gas temporarily stored in the sampling pipe into the ion migration tube; and a valve assembly configured to only allow gas to flow from the sampling device to the sampling pipe in a sampling state, and to only allow gas to flow from the ion migration tube through the sampling pipe back to the ion migration tube in a sample introduction state.

    WIPING-TYPE SAMPLE SAMPLING AND FEEDING DEVICE, CARD READING APPARATUS, AND GATE MACHINE APPARATUS

    公开(公告)号:US20180196078A1

    公开(公告)日:2018-07-12

    申请号:US15868878

    申请日:2018-01-11

    IPC分类号: G01N35/04 G01N1/02 G01N35/00

    摘要: The present invention discloses a wiping-type sample sampling and feeding device, a card reading apparatus, and a gate machine apparatus. The wiping-type sample sampling and feeding device comprises a thermally desorbing portion for analyzing a substance; a wiping-type sampling portion for wiping the substance on a card or certificate and includes a first wheel, a second wheel and a wiping conveyor belt that travels between the first and second wheels along a first direction; and a card/certificate conveyor portion including a card carrying belt configured to convey a card or certificate along a second direction so that the card or certificate can contact with the wiping conveyor belt during conveyance of the card or certificate, thereby the wiping conveyor belt wipes a surface of the card or certificate, wherein the second direction is substantially perpendicular to the first direction.

    PREPARATION AND FEED APPARATUS OF STANDARD SAMPLE FOR CALIBRATION OF TRACE-ANALYSIS INSTRUMENT

    公开(公告)号:US20180158659A1

    公开(公告)日:2018-06-07

    申请号:US15786389

    申请日:2017-10-17

    摘要: Embodiments of the present disclosure relate to a preparation and feed apparatus of a standard sample for calibration of a trace-analysis instrument, and especially to a preparation and feed apparatus of a standard sample for calibration of a gas chromatograph-ion mobility spectrometer. When the trace-analysis instrument is being calibrated by taking advantage of the preparation and feed apparatus according to embodiments of the disclosure, it is unnecessary to use an additional dedicated tool and steps to prepare the sample for testing and to use an organic solvent or a dedicated sample application/dispensing tool, resulting in that the trace-analysis instrument is simple and convenient to carry and use, and the substance for calibration is also convenient to store and exchange; moreover, the trace-analysis instrument is also safe, reliable and environmentally friendly.

    GENERAL SAMPLE INJECTOR, GAS CHROMATOGRAPH AND COMBINED SPECTROMETER
    10.
    发明申请
    GENERAL SAMPLE INJECTOR, GAS CHROMATOGRAPH AND COMBINED SPECTROMETER 有权
    一般样品注射器,气相色谱和组合光谱仪

    公开(公告)号:US20150185189A1

    公开(公告)日:2015-07-02

    申请号:US14577603

    申请日:2014-12-19

    IPC分类号: G01N30/18 G01N27/62 G01N30/72

    摘要: The present invention discloses a general sample injector, comprising a sample injection port mechanism, a sample injector shell, a vaporizing chamber, a heater, a temperature control unit, a carrier gas channel, a septum purge channel, a flow splitting channel, a coolant channel, a multichannel flow control valve and a temperature control unit. The general sample injector, equivalent to a “programmed temperature vaporizer” injector combining splitting/no splitting with cold column head sample injection, gives full play to the advantages of various sample injection modes, overcomes a plurality of disadvantages, and has higher practicability and better flexibility.

    摘要翻译: 本发明公开了一种一般的样品注射器,其包括样品注入端口机构,样品注射器壳体,蒸发室,加热器,温度控制单元,载气通道,隔膜清洗通道,分流通道,冷却剂 通道,多通道流量控制阀和温度控制单元。 一般样品注射器相当于组合分离/不分离与冷柱头样品注入的“编程温度蒸发器”注射器,充分发挥各种样品注射模式的优点,克服了多种缺点,具有较高的实用性和更好的效果 灵活性。