公开(公告)号：US20090289183A1

公开(公告)日：2009-11-26

申请号：US12422427

申请日：2009-04-13

申请人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Wen He ,  Hui Li ,  Zhongxia Zhang

发明人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Wen He ,  Hui Li ,  Zhongxia Zhang

IPC分类号： H01J49/26

CPC分类号： G01N1/02 ,  G01N1/405 ,  G01N27/622 ,  G01N2001/028 ,  Y10T436/2575

摘要： A sample processing system and a sample processing method for a trace detector are disclosed. The system comprises a sampling substrate for collecting a substance or substances from the surface of an object to be tested by contacting the sampling substrate with the surface of the object, and a trace detector. The trace detector includes a sample feeding device provided with a sample feeding part. The substance collected by the sampling substrate can be transferred to a surface of the sample feeding part so that the substance transferred to the surface of the sample feeding part can be detected. With the configuration of some embodiments of the present invention, a sampling substrate made of chemical fiber is used to collect a sample from the surface of an object to be tested by contacting the sampling substrate with the surface of the object to be tested. The sample collected by the sampling substrate is mechanically transferred to a metal film or mesh of the sample feeding device of the trace detector. Then, the metal film or mesh of the sample feeding device is heated to vaporize the sample and to release the sample vapor into the trace detector. Therefore, the efficiency of sample collection and desorption processes can be improved. In addition, the direct heating of a sampling substrate can be avoided so as to decrease the interference of the sampling substrate with trace detection.

摘要翻译： 公开了一种用于跟踪检测器的样品处理系统和样品处理方法。 该系统包括：采样基板，用于通过使采样基板与物体的表面接触并从待测物体的表面收集物质或物质;以及轨迹检测器。 痕量检测器包括具有样品供给部的样品供给装置。 由采样基板收集的物质可以转移到样品供给部的表面，从而可以检测转移到样品供给部的表面的物质。 利用本发明的一些实施例的结构，由化学纤维制成的采样衬底用于通过使采样衬底与待测试物体的表面接触从待测物体的表面收集样品。 由采样基板收集的样品被机械转移到迹线检测器的样品供给装置的金属膜或网孔。 然后，加热样品供给装置的金属膜或网，使样品蒸发并将样品蒸气释放到痕量检测器中。 因此，可以提高样品收集和解吸过程的效率。 此外，可以避免采样衬底的直接加热，从而降低采样衬底与痕量检测的干扰。

公开(公告)号：US20090283694A1

公开(公告)日：2009-11-19

申请号：US12437044

申请日：2009-05-07

申请人： Zhiqiang CHEN ,  Yuanjing LI ,  Hua PENG ,  Qingjun ZHANG ,  Jin LIN ,  Shaoji MAO ,  Zhude DAI ,  Shiping CAO ,  Zhongxia ZHANG ,  Yangtian ZHANG ,  Dexu LIN ,  Qinghua WANG ,  Shaofeng WANG ,  Hui LI

发明人： Zhiqiang CHEN ,  Yuanjing LI ,  Hua PENG ,  Qingjun ZHANG ,  Jin LIN ,  Shaoji MAO ,  Zhude DAI ,  Shiping CAO ,  Zhongxia ZHANG ,  Yangtian ZHANG ,  Dexu LIN ,  Qinghua WANG ,  Shaofeng WANG ,  Hui LI

IPC分类号： H01J27/00 ,  H01J49/00 ,  G21G4/00

CPC分类号： H01J49/14 ,  H01J27/20

摘要： Disclosed is an ion source comprising a plate-shaped source body which has radioactivity on its both sides and allows positive and negative ions to penetrate through the source body. The present invention gives beneficial effects. First, the ion source structure can improve the ionization efficiency of sample molecules, and the generated sample ions have a centralized distribution within a flat space on both sides of the source body. Such distribution of ion cloud facilitates to improve the IMS sensitivity. Meanwhile, the source body of the present invention has a transmittance in itself. Thus, positive and negative ions generated on both sides of the source body can penetrate through the source body and be separated to the both sides of the source body. In this way, it is possible to improve the utilization efficiency of ions.

摘要翻译： 公开了一种离子源，其包括在其两侧具有放射性并允许正离子和负离子穿过源体的板状源体。 本发明具有有益效果。 首先，离子源结构可以提高样品分子的电离效率，并且所产生的样品离子在源体的两侧的平坦空间内具有集中分布。 这种离子云的分布有助于提高IMS灵敏度。 同时，本发明的源体本身具有透光性。 因此，源体两侧产生的正离子和负离子可以穿透源体并分离到源体的两侧。 以这种方式，可以提高离子的利用效率。

公开(公告)号：US08640727B2

公开(公告)日：2014-02-04

申请号：US12743926

申请日：2009-12-30

申请人： Zhongxia Zhang ,  Hui Li ,  Yangtian Zhang ,  Jin Lin ,  Jianhua Liu

发明人： Zhongxia Zhang ,  Hui Li ,  Yangtian Zhang ,  Jin Lin ,  Jianhua Liu

IPC分类号： F17D1/02 ,  G01N27/62 ,  F16L53/00

CPC分类号： G01N27/622 ,  Y10T137/3112 ,  Y10T137/4891 ,  Y10T137/6606 ,  Y10T137/87346 ,  Y10T137/87571

摘要： The present invention relates to a dopant gas generating device for supplying the dopant gas to the ion mobility spectrometry instrument, comprising: a doping container; an air inlet having an inlet end connecting with an upstream side of a carrier gas passage and an outlet end connecting with the doping container; an air outlet having an entrance end connecting with the doping container and an exit end connecting with an downstream side of the carrier gas passage; a dopant gas generating unit for releasing the dopant gas, wherein the dopant gas generating unit is disposed within the doping container. Through disposing the dopant gas generating unit, which is used for releasing the dopant gas, within the doping container, the dopant gas in the present invention is applicable with not only a solid state dopant, but also a liquid state dopant.

摘要翻译： 本发明涉及一种用于将掺杂剂气体供给到离子迁移率光谱仪器的掺杂剂气体产生装置，包括：掺杂容器; 空气入口，其具有与载气通道的上游侧连接的入口端和与所述掺杂容器连接的出口端; 具有与所述掺杂容器连接的入口端的出气口和与所述载气通道的下游侧连接的出口端; 用于释放掺杂气体的掺杂剂气体发生单元，其中所述掺杂剂气体发生单元设置在所述掺杂容器内。 通过在掺杂容器内设置用于释放掺杂剂气体的掺杂剂气体发生单元，本发明中的掺杂气体不仅可以应用于固态掺杂剂，而且也可应用于液态掺杂剂。

公开(公告)号：US08217365B2

公开(公告)日：2012-07-10

申请号：US12437044

申请日：2009-05-07

申请人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Qingjun Zhang ,  Jin Lin ,  Shaoji Mao ,  Zhude Dai ,  Shiping Cao ,  Zhongxia Zhang ,  Yangtian Zhang ,  Dexu Lin ,  Qinghua Wang ,  Shaofeng Wang ,  Hui Li

发明人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Qingjun Zhang ,  Jin Lin ,  Shaoji Mao ,  Zhude Dai ,  Shiping Cao ,  Zhongxia Zhang ,  Yangtian Zhang ,  Dexu Lin ,  Qinghua Wang ,  Shaofeng Wang ,  Hui Li

IPC分类号： H01J27/20 ,  H01J49/14

CPC分类号： H01J49/14 ,  H01J27/20

摘要： Disclosed is an ion source comprising a plate-shaped source body which has radioactivity on its both sides and allows positive and negative ions to penetrate through the source body. The present invention gives beneficial effects. First, the ion source structure can improve the ionization efficiency of sample molecules, and the generated sample ions have a centralized distribution within a flat space on both sides of the source body. Such distribution of ion cloud facilitates to improve the IMS sensitivity. Meanwhile, the source body of the present invention has a transmittance in itself. Thus, positive and negative ions generated on both sides of the source body can penetrate through the source body and be separated to the both sides of the source body. In this way, it is possible to improve the utilization efficiency of ions.

摘要翻译： 公开了一种离子源，其包括在其两侧具有放射性并允许正离子和负离子穿过源体的板状源体。 本发明具有有益效果。 首先，离子源结构可以提高样品分子的电离效率，并且所产生的样品离子在源体的两侧的平坦空间内具有集中分布。 这种离子云的分布有助于提高IMS灵敏度。 同时，本发明的源体本身具有透光性。 因此，源体两侧产生的正离子和负离子可以穿透源体并分离到源体的两侧。 以这种方式，可以提高离子的利用效率。

公开(公告)号：US20110139975A1

公开(公告)日：2011-06-16

申请号：US12747243

申请日：2009-12-30

申请人： Hua Peng ,  Jin Lin ,  Wen He ,  Yangtian Zhang ,  Yaoxin Wang ,  Peng Jiao ,  Hui Li ,  Zhongxia Zhang

发明人： Hua Peng ,  Jin Lin ,  Wen He ,  Yangtian Zhang ,  Yaoxin Wang ,  Peng Jiao ,  Hui Li ,  Zhongxia Zhang

IPC分类号： H01J49/04 ,  B01D59/44

CPC分类号： G01N27/62 ,  G01N1/2202 ,  G01N1/40

摘要： A trace detector is disclosed. The trace detector comprises: a desorption chamber defining a desorption region, and the desorption chamber has a housing. The housing has a sample feeding port for introducing a substance to be detected into the desorption chamber and a gas discharge port for discharging gas entraining the sample from the desorption chamber. A controller is used for controlling the trace detector in such a manner that the sample feeding port and the gas discharge port are in fluid communication with the desorption chamber during pre-concentration process of the trace detector, thereby continuously feeding and collecting the sample. With the above manner, data collecting, processing and analyzing processes may be performed by the trace detector throughout the sample feeding process and the gas pre-concentrating process. The trace detector has an excellent detecting period of time whether the substance to be detected in the gas is in a high concentration state or a low concentration state, and the trace detector can perform continuous sampling for a long time, thereby improving a ratio of the amount of trapped substance to the amount of the substance entrained in the gas to be detected and the amount of the cumulated trapped substance, decreasing the probability of failing to detect the substance, and increasing detection sensitivity. In addition, the detection efficiency of the detector is increased during the gas pre-concentration process.

摘要翻译： 公开了一种跟踪检测器。 痕量检测器包括：解吸室，其限定解吸区域，并且解吸室具有壳体。 壳体具有用于将待检测物质引入解吸室的样品供给口和用于排出从解吸室夹带样品的气体的气体排出口。 控制器用于控制跟踪检测器，使得样品供给口和排气口在迹线检测器的预浓缩过程期间与解吸室流体连通，从而连续地进料和收集样品。 通过上述方式，数据收集，处理和分析过程可以在整个采样过程和气体预浓缩过程中由迹线检测器执行。 痕量检测器在气体中被检测物质是处于高浓度状态还是低浓度状态下具有优异的检测时间段，并且痕量检测器可以长时间进行连续取样，从而提高 捕获的物质的量与被检测气体中夹带的物质的量和累积的捕获物质的量的量，降低检测不到物质的可能性，并提高检测灵敏度。 此外，在气体预浓缩过程中检测器的检测效率增加。

公开(公告)号：US20090321638A1

公开(公告)日：2009-12-31

申请号：US12468194

申请日：2009-05-19

申请人： Haifeng Hu ,  Zhiqiang Chen ,  Yuanjing Li ,  Jin Lin ,  Jinyu Zhang ,  Hua Peng ,  Qingjun Zhang ,  Zhongxia Zhang ,  Yangtian Zhang ,  Xiaoti Yin ,  Liwei Song

发明人： Haifeng Hu ,  Zhiqiang Chen ,  Yuanjing Li ,  Jin Lin ,  Jinyu Zhang ,  Hua Peng ,  Qingjun Zhang ,  Zhongxia Zhang ,  Yangtian Zhang ,  Xiaoti Yin ,  Liwei Song

IPC分类号： G01N23/00 ,  G01T1/00 ,  G01R19/00

CPC分类号： G01V11/00 ,  G01N1/02 ,  G01N2001/022

摘要： The present invention discloses a security inspection door comprising a narcotic drug/explosive detecting subsystem, a radioactive substance detecting subsystem and a metal detecting subsystem which are provided in a tank body, wherein electromagnetic radiation shields are respectively provided around the three detecting subsystems, so that the narcotic drug/explosive detecting subsystem, the radioactive substance detecting subsystem and the metal detecting subsystem are isolated from one another and are not interfered with one another. In the present invention, the narcotic drug/explosive detecting subsystem, the radioactive substance detecting subsystem and the metal detecting subsystem are combined together for the first time to form a novel security inspection door, so the narcotic drugs/the explosives, the radioactive substances and the dangerous metal articles can be detected at the same time. Further, in the present invention, electromagnetic radiation shields are respectively provided around the three detecting subsystems, so that the three detecting subsystems are isolated from one another and are not interfered with one another, and thus, the inspection reliability and the inspection accuracy are improved.

摘要翻译： 本发明公开了一种安全检查门，其包括设在罐体内的麻醉药物/爆炸物检测子系统，放射性物质检测子系统和金属检测子系统，其中分别在三个检测子系统周围设置电磁辐射屏蔽，使得 麻醉药品/爆炸物检测子系统，放射性物质检测子系统和金属检测子系统彼此隔离，不会相互干扰。 在本发明中，麻醉药物/爆炸物检测子系统，放射性物质检测子系统和金属检测子系统首次组合形成新型安全检查门，麻醉药品/爆炸物，放射性物质和 可以同时检测危险的金属制品。 此外，在本发明中，在三个检测子系统周围分别设置有电磁辐射屏蔽，使得三个检测子系统彼此隔离并且不彼此干扰，从而提高了检查可靠性和检查精度 。

公开(公告)号：US20120138783A1

公开(公告)日：2012-06-07

申请号：US13203078

申请日：2010-07-30

申请人： Hua Peng ,  Zhongxia Zhang ,  Yaoxin Wang

发明人： Hua Peng ,  Zhongxia Zhang ,  Yaoxin Wang

IPC分类号： H01J49/26

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.

摘要翻译： 本发明涉及一种提高离子迁移谱仪检测灵敏度的方法，包括：将样品插入离子迁移谱仪的样品接收装置; 触发通过光耦合器进行光谱采集的操作; 当获取的光谱数量达到含有足够的信息以准确检测具有较高蒸气压的炸药所需的水平时，通过控制电磁阀的ON / OFF状态将掺杂剂立即添加到电离区域; 当获取的光谱数量达到含有足够的信息以准确检测相对低的蒸气压的爆炸物所需的水平时，停止采集操作，并关闭电磁阀，以便停止向电离区添加掺杂剂; 分析所有获取的光谱以获得检测结果。 控制掺杂剂的添加时间使得掺杂剂可以对具有相对低的蒸汽压力的一些爆炸物的检测起作用，而当没有添加掺杂剂时可以以更高的灵敏度检测到的爆炸物可以被分析，在掺杂剂 浓度非常低，从而通过考虑其对各种炸药的响应来实现装置的最佳检测性能。

公开(公告)号：US08129691B2

公开(公告)日：2012-03-06

申请号：US12468194

申请日：2009-05-19

申请人： Haifeng Hu ,  Zhiqiang Chen ,  Yuanjing Li ,  Jin Lin ,  Jinyu Zhang ,  Hua Peng ,  Qingjun Zhang ,  Zhongxia Zhang ,  Yangtian Zhang ,  Xiaoti Yin ,  Liwei Song

发明人： Haifeng Hu ,  Zhiqiang Chen ,  Yuanjing Li ,  Jin Lin ,  Jinyu Zhang ,  Hua Peng ,  Qingjun Zhang ,  Zhongxia Zhang ,  Yangtian Zhang ,  Xiaoti Yin ,  Liwei Song

IPC分类号： G01T3/00

CPC分类号： G01V11/00 ,  G01N1/02 ,  G01N2001/022

摘要： A security inspection door comprising a narcotic drug/explosive detecting subsystem, a radioactive substance detecting subsystem and a metal detecting subsystem which are provided in a tank body is disclosed, wherein electromagnetic radiation shields are respectively provided around the three detecting subsystems, so that they are isolated from one another and are not interfered with one another. The three detecting subsystems are combined together to form a novel security inspection door, so the narcotic drugs/the explosives, the radioactive substances and the dangerous metal articles can be detected at the same time. Further, electromagnetic radiation shields are respectively provided around the three detecting subsystems, so that the three detecting subsystems are isolated from one another and are not interfered with one another, and thus, the inspection reliability and the inspection accuracy are improved.

摘要翻译： 公开了一种安全检查门，其包括设置在罐体中的麻醉药物/爆炸物检测子系统，放射性物质检测子系统和金属检测子系统，其中在三个检测子系统周围分别设置电磁辐射屏蔽， 彼此隔离，彼此不会相互干扰。 三个检测子系统结合在一起形成一个新的安全检查门，因此可以同时检测麻醉药品/爆炸物，放射性物质和危险金属物品。 此外，在三个检测子系统周围分别设置电磁辐射屏蔽，使得三个检测子系统彼此隔离并且彼此不相干，从而提高了检测可靠性和检查精度。

公开(公告)号：US07958792B2

公开(公告)日：2011-06-14

申请号：US12429659

申请日：2009-04-24

申请人： Hua Peng ,  Jianhua Liu ,  Wen He ,  Hui Li ,  Zhongxia Zhang

发明人： Hua Peng ,  Jianhua Liu ,  Wen He ,  Hui Li ,  Zhongxia Zhang

IPC分类号： G01N1/04

CPC分类号： G01N1/02 ,  G01N2001/028

摘要： The present invention relates to a hand-held swipe sampling device which can continuously supply sampling swabs. The swipe sampling device comprises a hand-held portion and a swipe sampling portion, wherein the hand grip portion is a rectangular housing in the interior of which contains a continuous sampling swab space, with a bottom cover provided on the underside of the sampling swab space, and a sampling swab outlet provided at an upper end of one side of the sampling swab space; a front end face of the swipe sampling portion configured as an accurate swipe sampling surface and provided with a sampling swab cutter. The sampling device according to the present invention is designed in a manner that continuous folded sampling swabs can be mounted and used in the sampling device such that the device can be used for many times after each mounting of the sampling swabs, thereby simplifying the mounting operations, reducing the contamination opportunities and facilitating the storage of the sampling swabs.

摘要翻译： 本发明涉及一种能够连续供应取样拭子的手持式刷卡取样装置。 滑动采样装置包括手持部分和滑动取样部分，其中手握部分是矩形壳体，其内部包含连续取样拭子空间，底盖设置在取样拭子空间的下侧 以及设置在取样拭子空间一侧上端的取样拭子出口; 滑动采样部分的前端面被配置为精确的扫掠采样表面并且设置有采样拭子切割器。 根据本发明的采样装置的设计方式是可以在采样装置中安装和使用连续折叠的采样拭子，使得该装置可以在每次安装采样拭子之后多次使用，从而简化了安装操作 ，减少污染机会并促进采样拭子的储存。

公开(公告)号：US20100102219A1

公开(公告)日：2010-04-29

申请号：US12579719

申请日：2009-10-15

申请人： Hua Peng ,  Qingjun Zhang ,  Jin Lin ,  Yuanjing Li ,  Zhiqiang Chen ,  Shaoji Mao ,  Zhude Dai ,  Shiping Cao ,  Zhongxia Zhang ,  Yangtian Zhang ,  Dexu Lin ,  Qinghua Wang ,  Zhang Qing Jun

发明人： Hua Peng ,  Qingjun Zhang ,  Jin Lin ,  Yuanjing Li ,  Zhiqiang Chen ,  Shaoji Mao ,  Zhude Dai ,  Shiping Cao ,  Zhongxia Zhang ,  Yangtian Zhang ,  Dexu Lin ,  Qinghua Wang ,  Zhang Qing Jun

IPC分类号： H01J49/02 ,  B01D59/44

CPC分类号： H01J3/04 ,  H01J49/004 ,  H01J49/061

摘要： Disclosed is an ion gate for a dual IMS and method. The ion gate includes an ion source, a first gate electrode placed on one side of the ion source, a second gate electrode placed on the other side of the ion source, a third gate electrode placed on the side of the first gate electrode away from the ion source, a fourth gate electrode placed on the side of the second gate electrode away from the ion source, wherein during the ion storage, the potential at the position on the tube axis of the ion gate corresponding to the first gate electrode is different from the potentials at the positions on the tube axis corresponding to the ion source and the third gate electrode, and the potential at the position on the tube axis corresponding to the second gate electrode is different from the potentials at the positions on the tube axis corresponding to the ion source and the fourth gate electrode. According to the present invention, after sample gas enters the ion gates, charge exchange with reaction ions occurs between the first gate electrode and the second electrode, and positive and negative ions are continuously stored into the storage regions for the positive and negative ions. This leads to an improvement of utility rate of ions. Then, the ions are educed in a step-wise manner from the storage regions for the positive and negative ions by a simple control of a combination of the electrodes.

摘要翻译： 公开了一种用于双重IMS和方法的离子门。 离子浇口包括离子源，位于离子源一侧的第一栅电极，位于离子源另一侧的第二栅电极，位于第一栅电极侧的第三栅电极， 离子源，第四栅极放置在远离离子源的第二栅电极侧，其中在离子存储期间，对应于第一栅电极的离子门的管轴上的位置的电位不同 从对应于离子源和第三栅电极的管轴上的位置的电位和对应于第二栅电极的管轴上的位置的电位与管轴对应的位置的电位不同 到离子源和第四栅电极。 根据本发明，在样品气体进入离子浇口之后，在第一栅电极和第二电极之间产生与反应离子的电荷交换，正离子和负离子被连续地存储在正离子和负离子的存储区中。 这导致了离子的利用率的提高。 然后，通过简单地控制电极的组合，从正离子和负离子的存储区域逐步地排出离子。