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公开(公告)号：US11320407B2
公开(公告)日：2022-05-03
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：US11215626B2
公开(公告)日：2022-01-04
申请号：US16406272
申请日：2019-05-08
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Ziran Zhao , Yinong Liu , Yaohong Liu , Qiufeng Ma , Lili Yan , Weiping Zhu , Biao Cao
摘要： The present disclosure provides a gate system for sample detection and a method of sample inspection, which relate to the field of detection and analysis technology. The gate system comprises: an accommodating apparatus configured to accommodate an inserted ticket to be detected; a wipe sampling apparatus including a wipe sampling belt which is configured to drive the ticket to be detected to move within the accommodating apparatus and to conduct a wipe sampling to the ticket; an inspiratory sampling apparatus configured to collect samples dropped from the wipe sampling apparatus; and a detection apparatus configured to detect the samples and output detection results. The gate system for sample detection and the method of sample inspection provided by the present disclosure have a wide range of applications and can perform rapid sampling and detection to those substances that are difficult to be volatilized.
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公开(公告)号：US11193860B2
公开(公告)日：2021-12-07
申请号：US16314063
申请日：2018-12-10
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Ziran Zhao , Yinong Liu , Yaohong Liu , Lili Yan , Ge Li , Qiufeng Ma
IPC分类号： G01N1/34 , G01N1/22 , G01N1/44 , G01N27/622
摘要： Embodiments of the present disclosure provide a gas purifying device and an ion migration spectrometer. The gas purifying device includes a first purificant vessel, a second purificant vessel and a valve communicated between the first purificant vessel and the second purificant vessel. The valve is configured to allow a gas flows from the second purificant vessel to the first purificant vessel in a first state and to permit the gas to flow from the first purificant vessel to the second purificant vessel in a second state.
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公开(公告)号：US11022581B2
公开(公告)日：2021-06-01
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
IPC分类号： G01N27/00 , G01N27/622 , H01J49/04
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：US11346807B2
公开(公告)日：2022-05-31
申请号：US16626767
申请日：2019-06-12
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Jianmin Li , Yinong Liu , Yaohong Liu , Lili Yan , Biao Cao , Weiping Zhu , Ge Li , Qiufeng Ma , Qi Mao , Nan Bai
IPC分类号： H01J49/00 , 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.
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公开(公告)号：US11346808B2
公开(公告)日：2022-05-31
申请号：US16934520
申请日：2020-07-21
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Jianmin Li , Yinong Liu , Yaohong Liu , Yanqin Zhao , Lili Yan , Biao Cao , Qiufeng Ma , Ge Li
IPC分类号： G01N27/622 , G01N27/626 , H05K1/02
摘要： The present disclosure provides a trace detection device. The trace detection device includes: a box body comprising a main body frame and a top plate, the top plate and the main body frame forming a fully enclosed cavity; an ion migration tube assembly in the cavity and on a first side of the cavity; and a preamplifier and high voltage circuit board in the cavity and on a second side of the cavity, the second side being opposite to the first side.
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