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公开(公告)号：US20230236150A1
公开(公告)日：2023-07-27
申请号：US17999201
申请日：2021-05-14
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Jianmin LI , Weiping ZHU , Qiufeng MA , Biao CAO , Lili YAN , Ge LI , Nei YANG
IPC分类号： G01N27/622 , G01N30/20
CPC分类号： G01N27/622 , G01N30/20 , G01N2030/025 , G01N2030/201
摘要： A trace detection device including: an ion mobility tube ; a sampling gas path module ; a sample injection gas path module configured to introduce a sample carrier gas containing a sample collected by the sampling gas path module toward the ion mobility tube; and a gas chromatography apparatus capable of pre-separating the sample carrier gas, so as to form a pre-separated sample carrier gas; wherein the sample injection gas path module is further configured to be capable of switching between a first mode and a second mode, in the first mode, the sample injection gas path module introduces the sample carrier gas into the ion mobility tube; and in the second mode, the sample injection gas path module introduces the sample carrier gas into the gas chromatography apparatus to pre-separate the sample carrier gas, and the pre-separated sample carrier gas is introduced into the ion mobility tube.
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公开(公告)号：US20230236093A1
公开(公告)日：2023-07-27
申请号：US18001249
申请日：2021-06-07
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Jianmin LI , Weiping ZHU , Ge LI , Nei YANG , Biao CAO , Wei WANG , Xiulin NI , Shengxi LIU , Zheng LIANG
CPC分类号： G01N1/2211 , G01N1/24 , G01N30/20 , B25J9/1697 , G01N2030/201 , G01N30/7206
摘要： Provided are an odor sniffing device (11) and a vehicle-mounted security inspection apparatus for a container (1). The odor sniffing device (11) includes a primary sampling front end (116), which has a vent adapter (116-1) having a shape matching with a vent of the ventilator of the container, so that when the primary sampling front end (116) fits with the ventilator, the vent adapter (116-1) and the vent generally cooperate to achieve fluid communication. The vehicle-mounted security inspection apparatus (1) may perform imaging inspection and chemical inspection simultaneously.
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公开(公告)号：US20200240961A1
公开(公告)日：2020-07-30
申请号：US16714799
申请日：2019-12-16
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Weiping ZHU , Yaohong LIU , Qiufeng MA , Ge LI , Biao CAO , Lili YAN
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.
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公开(公告)号：US20200150086A1
公开(公告)日：2020-05-14
申请号：US16627434
申请日：2019-01-25
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Honghui XIN , Biao CAO , Nan BAI , Wei WANG , Qiufeng MA
摘要： A gas path flow monitoring apparatus for an ion mobility spectrometer includes: an ion migration tube, a sensor group, and monitoring device. The ion migration tube has a drift gas inlet, a carrier gas inlet for a sample gas, and an exhaust outlet. The sensor group comprises a drift gas intake quantity sensor connected to the drift gas inlet, a carrier gas intake quantity sensor connected to the carrier gas inlet, and an exhaust quantity sensor connected to the exhaust outlet. The monitoring device is connected to the sensor group to monitor a drift gas intake quantity sensed by the drift gas intake quantity sensor, a carrier gas intake quantity sensed by the carrier gas intake quantity sensor, and an exhaust quantity sensed by the exhaust quantity sensor.
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5.发明申请公开(公告)号：US20190204270A1
公开(公告)日：2019-07-04
申请号：US16235315
申请日：2018-12-28
发明人： Qingjun ZHANG , Weiping ZHU , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Qiufeng MA , Ge LI , Biao CAO , Nan BAI
CPC分类号： G01N27/622 , G01N30/20 , G01N30/6026 , G01N2030/025
摘要： A gas chromatography-ion mobility spectrometry detector and a hyphenated apparatus, the gas chromatography-ion mobility spectrometry detector comprises a gas chromatography mechanism and an ion mobility spectrometry mechanism. The gas chromatography mechanism comprises a chromatographic column and a sample injection port. The ion mobility spectrometry mechanism comprises a mobility tube and a connecting body, while a metal connection plate of the connecting body comprises a chromatographic metal plate, an ion mobility metal plate and a semipermeable membrane; on the ion mobility metal plate there are provided an ion mobility sample and carrier gas inlet, an ion mobility sample chamber and a sample injection port; the chromatography sample chamber and the ion mobility sample chamber are separated by semipermeable membrane.
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公开(公告)号：US20210048376A1
公开(公告)日：2021-02-18
申请号：US16989123
申请日：2020-08-10
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Jianmin LI , Shangmin SUN , Yaohong LIU , Weiping ZHU , Qiufeng MA , Ge LI , Biao CAO , Zheng LIANG , Ying LI , Yu HU
摘要： A sampling probe, an automatic sampling device, and a container detection system are provided. The sampling probe includes: a mounting base; a housing mounted on the mounting base, a first accommodation chamber having an opening being defined in the housing, and an exhaust hole in communication with the first accommodation chamber and outside of the housing being formed in the housing; a coupling portion formed on an outer edge of the opening of the first accommodation chamber and formed to be hermetically coupled with an air outlet of a container; and a suction device mounted on the housing and configured to suck gas in the container into the first accommodation chamber through the air outlet. The sampling probe may collect the odor of toxic and harmful gases/hazardous chemicals inside the container at the air outlet of the container, without destroying the overall structure of the container.
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7.发明申请公开(公告)号：US20180196078A1
公开(公告)日：2018-07-12
申请号：US15868878
申请日：2018-01-11
发明人： Qingjun ZHANG , Yuanjing LI , Ziran ZHAO , Qiufeng MA , Ge LI , Biao CAO , Qi MAO
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.
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公开(公告)号：US20200209192A1
公开(公告)日：2020-07-02
申请号：US16727612
申请日：2019-12-26
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Jianmin LI , Yaohong LIU , Weiping ZHU , Qiufeng MA , Biao CAO , Ge LI , Wei WANG , Lili YAN , Guangqin LI
摘要： Embodiments of the present disclosure provide an ion mobility spectrometer device. The ion mobility spectrometer device includes: an ion mobility tube, a sampling device, and a sampling and circulating gas path. The sampling device includes a solid sample desorption device and a gas sampling device. The solid sample desorption device is configured to process the solid sample into a first mixed gas containing the solid sample, and the gas sampling device is configured to process the gas sample into a second mixed gas containing the gas sample. The sampling and circulating gas path is configured to transfer the first mixed gas and/or the second mixed gas into the ion mobility tube for detection.
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公开(公告)号：US20190204271A1
公开(公告)日：2019-07-04
申请号：US16235340
申请日：2018-12-28
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Ge LI , Jingli XIE , Qiufeng MA , Biao CAO
CPC分类号： G01N27/622 , G01N1/2205 , G01N1/2211 , G01N1/24 , G01N2001/244
摘要： The present disclosure provides a device for collecting semi-volatile or non-volatile substance, including an air nozzle, a front cavity and a collecting body. The air nozzle is configured to eject air to a sample attachment surface. The front cavity has an upper port. The collecting body is sealingly connected to a lower end of the front cavity, inside of which is provided with a cylindrical cavity and a conical cavity arranged vertically coaxially, and bottom of which is provided with a sample outlet. The collecting body is provided with an air intake passage which is non-coplanar with respect to an axis of the cylindrical cavity and is disposed obliquely downward and inward. The collecting body is further provided with an air exhaust passage one end of which is a discharge port connected to the interior of the cylindrical cavity, the other end is connected to an air pump.
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10.发明申请公开(公告)号：US20190204188A1
公开(公告)日：2019-07-04
申请号：US16232672
申请日：2018-12-26
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Nan BAI , Ge LI , Qiufeng MA , Biao CAO , Weiping ZHU
CPC分类号： G01N1/2214 , B01D53/10 , B01D2259/40098 , G01N1/2205
摘要： A sampling adsorber, a heat desorption chamber device, a sampling apparatus and an analyzer apparatus. The sampling adsorber includes an outer barrel, which includes an outer barrel first end and an outer barrel second end, and a core located in the outer barrel, the core having a core first end and a core second end, and the outer barrel first end and the core first end are located at a same side of the sampling adsorber. The core includes an adsorbent portion configured to adsorb a sample and a core body portion, the adsorbent portion connected to the core body portion. Sizes of the outer barrel and the core are formed such that a gap is provided between them to allow external gas to enter the gap through the adsorbent portion and to subsequently be discharged from a downstream portion of the gap.
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