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公开(公告)号：US09513266B2
公开(公告)日：2016-12-06
申请号：US14577653
申请日：2014-12-19
Applicant: Nuctech Company Limited
Inventor： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Qiufeng Ma , Ziran Zhao , Yinong Liu , Yaohong Liu , Xiang Zou , Yanchun Wang , Junxiao Wang , Jianping Chang
CPC classification number: G01N30/7206 , G01N27/622 , G01N27/64 , H01J49/0422
Abstract: A GC-IMS system is disclosed. The system includes a sample transfer device. The sample transfer device connects the gas chromatograph to the reaction region and, the sample from the gas chromatograph is transferred to the reaction region by the sample transfer device. With the GC-IMS system, generation of sample molecular ion fragments can be avoided so that the spectrum is easily identified; moreover, the application field of the GC-IMS system is extended to a range of analysis of organic macromolecule samples which have a high polarity, are difficult to volatilize, and are thermally instable. On the other hand, the GC-IMS system overcomes the defect of ion destruction due to neutralization reaction among positive and negative ions so as to evade the detection.
Abstract translation: 公开了一种GC-IMS系统。 该系统包括样品转移装置。 样品转移装置将气相色谱仪连接到反应区域，样品转移装置将样品从气相色谱仪转移到反应区域。 使用GC-IMS系统，可以避免样品分子离子片段的产生，从而可以容易地鉴定光谱; 此外，GC-IMS系统的应用领域扩展到具有高极性，难以挥发和热不稳定的有机大分子样品的分析范围。 另一方面，GC-IMS系统克服了由于正离子和负离子之间的中和反应引起的离子破坏的缺陷，以避免检测。
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12.发明申请PROCESS FOR THE PREPARATION OF GADOLINIUM OXYSULFIDE (Gd2O2S) SCINTILLATION CERAMICS 有权氧化钆（Gd2O2S）激光陶瓷的制备方法公开(公告)号：US20160046861A1
公开(公告)日：2016-02-18
申请号：US14827258
申请日：2015-08-14
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Yanchun WANG , Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Ziran Zhao , Yinong Liu , Yaohong Liu , Jianping Chang , Shuqing Zhao , Wenjian Zhang , Yongqiang Wang
IPC: C09K11/77 , C04B40/00 , C04B35/645
CPC classification number: C09K11/7772 , C04B35/5156 , C04B35/547 , C04B35/6261 , C04B35/64 , C04B35/645 , C04B35/6455 , C04B40/0007 , C04B2235/3203 , C04B2235/3224 , C04B2235/3229 , C04B2235/3287 , C04B2235/445 , C04B2235/5436 , C04B2235/5481 , C04B2235/6565 , C04B2235/6567 , C04B2235/6581 , C04B2235/661 , C04B2235/662 , C04B2235/666 , C04B2235/72 , C04B2235/77 , C04B2235/9653
Abstract: The present disclosure is directed to a rapid process for the preparation of gadolinium oxysulfide having a general formula of Gd2O2S, referred to as GOS, scintillation ceramics by using the combination of spark plasma primary sintering (SPS) and hot isostatic pressing secondary sintering.
Abstract translation: 本公开涉及通过使用火花等离子体一次烧结（SPS）和热等静压二次烧结的组合制备具有通式Gd 2 O 2 S（称为GOS）闪烁陶瓷的通式Gd 2 O 2 S的快速方法。
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公开(公告)号：US20190234905A1
公开(公告)日：2019-08-01
申请号：US16376986
申请日：2019-04-05
Applicant: Nuctech Company Limited
Inventor： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Ziran Zhao , Yinong Liu , Yaohong Liu , Huishao He , Qiufeng Ma , Weiping Zhu , Xiang Zou , Jianping Chang , Song Liang
CPC classification number: G01N27/622 , G01N1/02 , G01N1/2211 , G01N1/405 , G01N1/42 , G01N30/60 , G01N30/722 , G01N2001/028 , H01J49/0422 , H01J49/0459 , H01J49/0468 , G01N30/6043 , G01N30/6078
Abstract: A detection apparatus and a detection method are disclosed. In one aspect, the detection apparatus includes a sampling device for collecting samples to be checked. It further includes a sample pre-processing device configured to pre-process the sample from the sampling device. It further includes a sample analyzing device for separating samples from the pre-processing device and for analyzing the separated samples. The detection apparatus is miniaturized and highly precise, and is capable of quickly and accurately detecting gaseous phase or particulate substances, and it has applications for safety inspections at airports, ports, and subway stations.
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公开(公告)号：US10281431B2
公开(公告)日：2019-05-07
申请号：US15271713
申请日：2016-09-21
Applicant: Nuctech Company Limited
Inventor： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Weiping Zhu , Ziran Zhao , Qiufeng Ma , Huishao He , Jianping Chang , Xiang Zou , Linxia Tan
Abstract: 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.
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公开(公告)号：US10215666B2
公开(公告)日：2019-02-26
申请号：US15117086
申请日：2015-12-28
Applicant: Nuctech Company Limited
Inventor： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Weiping Zhu , Huishao He , Qiufeng Ma , Yaohong Liu , Xiang Zou , Jianping Chang
IPC: G01N1/02 , G01N30/08 , G01N1/22 , G01N1/40 , G01N27/62 , H01J49/04 , G01N1/42 , G01N1/38 , G01N30/12
Abstract: A sample injection device for sample collection and thermal desorption includes: a sample collection structure; a piston type adsorber having an adsorption cavity communicating with the sample collection structure; a piston cylinder defining a piston chamber accommodating the adsorber and communicating with the adsorption cavity; a thermal desorption chamber communicating with the adsorption cavity and the piston chamber; and a pump configured to pump a sample diffused in an ambient gas into the adsorption cavity through the sample collection structure and the piston chamber; the adsorber is movable between a sample collecting position where the adsorption cavity is outside the thermal desorption chamber and adsorbs the sample collected by the sample collection structure and a sample desorbing position where the adsorption cavity is inside the thermal desorption chamber so that the adsorbed sample is thermally desorbed in the thermal desorption chamber.
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Patent Agency Ranking
公开(公告)号：US09771515B2
公开(公告)日：2017-09-26
申请号：US14827248
申请日：2015-08-14
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Yanchun Wang , Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Ziran Zhao , Yinong Liu , Yaohong Liu , Jianping Chang , Shuqing Zhao , Wenjian Zhang , Yongqiang Wang
IPC: C09K11/77 , C04B35/63 , C04B35/645 , G01T1/29
CPC classification number: C09K11/7771 , C04B35/547 , C04B35/62615 , C04B35/6303 , C04B35/645 , C04B35/6455 , C04B2235/3224 , C04B2235/445 , C04B2235/5436 , C04B2235/5463 , C04B2235/604 , C04B2235/656 , C04B2235/6565 , C04B2235/662 , G01T1/2935
Abstract: The present disclosure is directed to a low cost sintering process for the preparation of gadolinium oxysulfide having a general formula of Gd2O2S, referred to as GOS, scintillation ceramics, comprising uniaxial hot pressing primary sintering and hot isostatic pressing secondary sintering.
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公开(公告)号：US09618484B2
公开(公告)日：2017-04-11
申请号：US14577603
申请日：2014-12-19
Applicant: NUCTECH COMPANY LIMITED
Inventor： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Qiufeng Ma , Ziran Zhao , Yinong Liu , Yaohong Liu , Junxiao Wang , Xiang Zou , Yanchun Wang , Jianping Chang , Linxia Tan
CPC classification number: G01N30/18 , G01N27/622 , G01N30/12 , G01N30/20 , G01N30/30 , G01N30/7206 , G01N2030/025
Abstract: 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.
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公开(公告)号：US09285342B2
公开(公告)日：2016-03-15
申请号：US14525058
申请日：2014-10-27
Applicant: Nuctech Company Limited
Inventor： Qingjun Zhang , Shiping Cao , Yuanjing Li , Zhiqiang Chen , Ziran Zhao , Yinong Liu , Jianping Chang , Yan Zheng , Yanchun Wang , Shaoji Mao
CPC classification number: G01N27/622 , G01N30/7206 , H01J49/0422 , H01J49/0468
Abstract: An ion mobility spectrometer system is disclosed. In one aspect, the system includes a gas chromatograph, first and second ion mobility spectrometers, and a sample feed device that feeds a sample from the gas chromatograph to the first and second ion mobility spectrometers. The sample feed device includes an inner chamber, first and second sample outlets for outputting the sample from the gas chromatograph to the first and second ion mobility spectrometers, respectively, and a gas inlet for inputting a gas into the sample feed device. The system detects and identifies molecules at improved resolution and enhanced molecule information. The system detects positive and negative ions, interrelates positive-mode and negative-mode spectrums, and separates substances.
Abstract translation: 公开了一种离子迁移谱仪系统。 在一个方面，该系统包括气相色谱仪，第一和第二离子迁移谱仪，以及将样品从气相色谱仪供给到第一和第二离子迁移谱仪的样品进料装置。 样品进料装置包括内室，用于将样品从气相色谱仪分别输出到第一和第二离子迁移谱仪的第一和第二样品出口，以及用于将气体输入到样品进料装置中的气体入口。 该系统以改进的分辨率和增强的分子信息检测和识别分子。 系统检测正离子和负离子，相互作用正模式和负模式光谱，并分离物质。
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公开(公告)号：US10408804B2
公开(公告)日：2019-09-10
申请号：US15276595
申请日：2016-09-26
Applicant: TSINGHUA UNIVERSITY , NUCTECH COMPANY LIMITED
Inventor： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Ziran Zhao , Weiping Zhu , Yaohong Liu , Qiufeng Ma , Xiang Zou , Huishao He , Jianping Chang , Song Liang
IPC: G01N30/72 , G01N23/085 , G01B15/00 , G01N30/84
Abstract: A darkroom type security inspection apparatus and a method of performing an inspection using the darkroom type security inspection apparatus. An apparatus includes a housing constituting a closed darkroom, and assemblies disposed inside the housing. The assemblies disposed inside the housing include: a sample collecting unit configured to collect a sample, a conveyor unit, and a X-ray detection unit to detect a position of the objected to be inspected, wherein the X-ray detection unit is configured to determine the position of the objected to be inspected within the sampling assembly so that the object to be inspected together with the conveyor unit is conveyed to an expected position; and a sample processing assembly, wherein the assemblies disposed inside the housing are communicated by fittings or connectors.
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公开(公告)号：US20190234904A1
公开(公告)日：2019-08-01
申请号：US16376983
申请日：2019-04-05
Applicant: Nuctech Company Limited
Inventor： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Ziran Zhao , Yinong Liu , Yaohong Liu , Huishao He , Qiufeng Ma , Weiping Zhu , Xiang Zou , Jianping Chang , Song Liang
Abstract: A detection apparatus and a detection method are disclosed. In one aspect, the detection apparatus includes a sampling device for collecting samples to be checked. It further includes a sample pre-processing device configured to pre-process the sample from the sampling device. It further includes a sample analyzing device for separating samples from the pre-processing device and for analyzing the separated samples. The detection apparatus is miniaturized and highly precise, and is capable of quickly and accurately detecting gaseous phase or particulate substances, and it has applications for safety inspections at airports, ports, and subway stations.
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