公开(公告)号：US07815721B2

公开(公告)日：2010-10-19

申请号：US11964384

申请日：2007-12-26

申请人： Yaoxin Wang ,  Yangtian Zhang ,  Zhizhong Liang ,  Jin Lin ,  Zhongxia Zhang ,  Hua Peng ,  Yinong Liu

发明人： Yaoxin Wang ,  Yangtian Zhang ,  Zhizhong Liang ,  Jin Lin ,  Zhongxia Zhang ,  Hua Peng ,  Yinong Liu

IPC分类号： B01D53/04 ,  B01D53/26

CPC分类号： B01D46/0023 ,  B01D46/0001 ,  B01D46/0005 ,  B01D46/0036 ,  B01D46/2414 ,  B01D46/30 ,  B01D53/0415 ,  B01D2259/4145 ,  B01D2271/022

摘要： The present invention relates to a gas filtering-buffering device, which comprises at least one gas filtering unit; a gas inlet, the gas to be processed flows into the at least one gas filtering unit from the gas inlet; and a gas outlet, the gas processed by the at least one gas filtering unit is discharged out of the at least one gas filtering unit via the gas outlet, wherein the at least one gas filtering unit comprising: a gas buffering cavity for performing buffering function for the gas, and a gas filtering part for performing filtering function for the gas. In the present invention, it is not only provided with a gas filtering part which is able to filter the moisture and organic substance in the gas, but also provided with a gas buffering cavity, which integrate the filtering and buffering functions together. The buffering cavity may expand the capacity and stabilize the pressure of the gas, and balance the concentration, pressure and flow rate of the gas, it is advantageous to reduce the on-way pressure lost and partially pressure lost, decrease fluctuation of the flow current and the pressure thus, the detecting performance of the detector is improved.

摘要翻译： 本发明涉及一种气体过滤缓冲装置，其包括至少一个气体过滤单元; 气体入口，待处理气体从气体入口流入至少一个气体过滤单元; 和气体出口，由所述至少一个气体过滤单元处理的气体经由所述气体出口排出所述至少一个气体过滤单元，其中所述至少一个气体过滤单元包括：气体缓冲腔，用于执行缓冲功能 用于气体，以及用于对气体进行过滤功能的气体过滤部。 在本发明中，不仅设置能够对气体中的水分和有机物质进行过滤的气体过滤部，还设置有将过滤和缓冲功能集成在一起的气体缓冲腔。 缓冲腔可以扩大容量并稳定气体的压力，平衡气体的浓度，压力和流量，有利于减少接通压力损失和部分压力损失，减少流量的波动 从而提高了检测器的检测性能。

公开(公告)号：US20080155946A1

公开(公告)日：2008-07-03

申请号：US11964384

申请日：2007-12-26

申请人： Yaoxin Wang ,  Yangtian Zhang ,  Zhizhong Liang ,  Jin Lin ,  Zhongxia Zhang ,  Hua Peng ,  Yinong Liu

发明人： Yaoxin Wang ,  Yangtian Zhang ,  Zhizhong Liang ,  Jin Lin ,  Zhongxia Zhang ,  Hua Peng ,  Yinong Liu

IPC分类号： B01D50/00

CPC分类号： B01D46/0023 ,  B01D46/0001 ,  B01D46/0005 ,  B01D46/0036 ,  B01D46/2414 ,  B01D46/30 ,  B01D53/0415 ,  B01D2259/4145 ,  B01D2271/022

摘要： The present invention relates to a gas filtering-buffering device, which comprises at least one gas filtering unit; a gas inlet, the gas to be processed flows into the at least one gas filtering unit from the gas inlet; and a gas outlet, the gas processed by the at least one gas filtering unit is discharged out of the at least one gas filtering unit via the gas outlet, wherein the at least one gas filtering unit comprising: a gas buffering cavity for performing buffering function for the gas, and a gas filtering part for performing filtering function for the gas. In the present invention, it is not only provided with a gas filtering part which is able to filter the moisture and organic substance in the gas, but also provided with a gas buffering cavity, which integrate the filtering and buffering functions together. The buffering cavity may expand the capacity and stabilize the pressure of the gas, and balance the concentration, pressure and flow rate of the gas, it is advantageous to reduce the on-way pressure lost and partially pressure lost, decrease fluctuation of the flow current and the pressure thus, the detecting performance of the detector is improved.

摘要翻译： 本发明涉及一种气体过滤缓冲装置，其包括至少一个气体过滤单元; 气体入口，待处理气体从气体入口流入至少一个气体过滤单元; 和气体出口，由所述至少一个气体过滤单元处理的气体经由所述气体出口排出所述至少一个气体过滤单元，其中所述至少一个气体过滤单元包括：用于执行缓冲功能的气体缓冲腔 用于气体，以及用于对气体进行过滤功能的气体过滤部。 在本发明中，不仅设置能够对气体中的水分和有机物质进行过滤的气体过滤部，还设置有将过滤和缓冲功能集成在一起的气体缓冲腔。 缓冲腔可以扩大容量并稳定气体的压力，平衡气体的浓度，压力和流量，有利于减少接通压力损失和部分压力损失，减少流量的波动 从而提高了检测器的检测性能。

公开(公告)号：US08309918B2

公开(公告)日：2012-11-13

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

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：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：US08304716B2

公开(公告)日：2012-11-06

申请号：US13170763

申请日：2011-06-28

申请人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Zhongxia Zhang ,  Xin Xue ,  Yaoxin Wang ,  Jin Lin ,  Xiaohui Yang

发明人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Zhongxia Zhang ,  Xin Xue ,  Yaoxin Wang ,  Jin Lin ,  Xiaohui Yang

IPC分类号： B01D59/44 ,  H01J49/00

CPC分类号： G01N27/622

摘要： The present invention discloses a sampling device for an ion migration spectrometer (IMS), comprising: an inner sleeve part, inside of which an inner cavity is defined, one end of the inner sleeve part is connected with an inlet of an migration pipe via an inner-layer channel, and the other end of the inner sleeve part is configured with an inner end cap having an inner opening; and an outer sleeve part, which is configured as an eccentric sleeve that is coaxial with the inner sleeve part and able to rotate with respect to the inner sleeve part, so as to form a sleeve cavity between the inner sleeve part and the outer sleeve part, wherein one end of the outer sleeve part is configured with at least one connecting opening that is selectively connected with the inner-layer channel, and the other end of the outer sleeve part is configured with an outer end cap, on which a first outer opening selectively connected with the inner opening and a second outer opening selectively connected with the sleeve cavity are configured, wherein the outer end cap is configured to be able to rotate between a first location and a second location with respect to the inner end cap, so as to selectively introduce a sample to be detected into the inner-layer channel via one of the inner cavity and the sleeve cavity. Moreover, the present invention further relates to a method for solid and gas sampling by using the above sampling device.

摘要翻译： 本发明公开了一种离子迁移光谱仪（IMS）的取样装置，其特征在于，包括：内套筒部，内侧限定有内腔，内套筒部的一端经由移动管的入口 内层通道，内套筒部的另一端构成为具有内开口的内端盖; 以及外套筒部，其被构造为与内套筒部分同轴且能够相对于内套筒部分旋转的偏心套筒，以在内套筒部分和外套筒部分之间形成套筒腔 其中，所述外套筒部分的一端构造有至少一个连接开口，所述至少一个连接开口与所述内层通道选择性地连接，并且所述外套筒部分的另一端构造有外端盖， 构造了与内部开口选择性地连接的开口和与套筒空腔有选择地连接的第二外部开口，其中外部端盖构造成能够相对于内部端盖在第一位置和第二位置之间旋转，因此 以便通过内腔和套管腔中的一个选择性地将要检测的样品引入内层通道。 此外，本发明还涉及使用上述采样装置进行固体和气体取样的方法。

公开(公告)号：US20110290041A1

公开(公告)日：2011-12-01

申请号：US12737341

申请日：2010-12-01

申请人： Yaoxin Wang ,  Yangtian Zhang ,  Jin Lin ,  Bin Xue ,  Wen He ,  Hua Peng ,  Peng Jiao

发明人： Yaoxin Wang ,  Yangtian Zhang ,  Jin Lin ,  Bin Xue ,  Wen He ,  Hua Peng ,  Peng Jiao

IPC分类号： G01N1/22

CPC分类号： G01N27/622 ,  G01N1/4022

摘要： The present invention discloses a sampling component comprising a sampling body that can be electrically heated and the outer surface of which has a wiping sampling area; and an insulated handle that is connected with one longitudinal end of the sampling body. The sampling component according to the present invention contacts directly the contacts of an external power supply after being disposed in a analysis chamber, the power supply is turned on to heat the sampling body so as to realize sample pyrolysis, and the power is turned off immediately after the sampling component is taken away. Thus, the power supply of the sampler can work discontinuously so that the power consumption of the system is reduced, meanwhile, the system malfunction caused by a long-term work of the sampling device under a high temperature can be avoided. The present invention further discloses a sampling device having said sampling component and an ion mobility spectrometer having the sampling device.

摘要翻译： 本发明公开了一种采样部件，包括：采样体，其能够被电加热，其外表面具有擦拭采样区域; 以及与采样体的一个纵向端连接的绝缘手柄。 根据本发明的采样部件在分配室内配置时，直接与外部电源的触头接触，接通电源以对取样体进行加热，以实现样品热解，并立即关闭电源 采样成分被取走后。 因此，采样器的电源可以不连续地工作，从而可以减少系统的功耗，同时可以避免高温采样装置的长期工作引起的系统故障。 本发明还公开了一种采样装置，其具有采样部件和具有采样装置的离子迁移谱仪。

公开(公告)号：US20120168617A1

公开(公告)日：2012-07-05

申请号：US13170763

申请日：2011-06-28

申请人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Zhongxia Zhang ,  Xin Xue ,  Yaoxin Wang ,  Jin Lin ,  Xiaohui Yang

发明人： Zhiqiang Chen ,  Yuanjing Li ,  Hua Peng ,  Zhongxia Zhang ,  Xin Xue ,  Yaoxin Wang ,  Jin Lin ,  Xiaohui Yang

IPC分类号： H01J49/04

CPC分类号： G01N27/622

摘要： The present invention discloses a sampling device for an ion migration spectrometer (IMS), comprising: an inner sleeve part, inside of which an inner cavity is defined, one end of the inner sleeve part is connected with an inlet of an migration pipe via an inner-layer channel, and the other end of the inner sleeve part is configured with an inner end cap having an inner opening; and an outer sleeve part, which is configured as an eccentric sleeve that is coaxial with the inner sleeve part and able to rotate with respect to the inner sleeve part, so as to form a sleeve cavity between the inner sleeve part and the outer sleeve part, wherein one end of the outer sleeve part is configured with at least one connecting opening that is selectively connected with the inner-layer channel, and the other end of the outer sleeve part is configured with an outer end cap, on which a first outer opening selectively connected with the inner opening and a second outer opening selectively connected with the sleeve cavity are configured, wherein the outer end cap is configured to be able to rotate between a first location and a second location with respect to the inner end cap, so as to selectively introduce a sample to be detected into the inner-layer channel via one of the inner cavity and the sleeve cavity. Moreover, the present invention further relates to a method for solid and gas sampling by using the above sampling device.

摘要翻译： 本发明公开了一种离子迁移光谱仪（IMS）的取样装置，其特征在于，包括：内套筒部，内侧限定有内腔，内套筒部的一端经由移动管的入口 内层通道，内套筒部的另一端构成为具有内开口的内端盖; 以及外套筒部，其被构造为与内套筒部分同轴且能够相对于内套筒部分旋转的偏心套筒，以在内套筒部分和外套筒部分之间形成套筒腔 其中，所述外套筒部分的一端构造有至少一个连接开口，所述至少一个连接开口与所述内层通道选择性地连接，并且所述外套筒部分的另一端构造有外端盖， 构造了与内部开口选择性地连接的开口和与套筒空腔有选择地连接的第二外部开口，其中外部端盖构造成能够相对于内部端盖在第一位置和第二位置之间旋转，因此 以便通过内腔和套管腔中的一个选择性地将要检测的样品引入内层通道。 此外，本发明还涉及使用上述采样装置进行固体和气体取样的方法。

公开(公告)号：US08528425B2

公开(公告)日：2013-09-10

申请号：US12737341

申请日：2010-12-01

申请人： Yaoxin Wang ,  Yangtian Zhang ,  Jin Lin ,  Bin Xue ,  Wen He ,  Hua Peng ,  Peng Jiao

发明人： Yaoxin Wang ,  Yangtian Zhang ,  Jin Lin ,  Bin Xue ,  Wen He ,  Hua Peng ,  Peng Jiao

IPC分类号： G01N1/22

CPC分类号： G01N27/622 ,  G01N1/4022

摘要： A sampling component including a sampling body that can be electrically heated and an outer surface of which has a wiping sampling area to receive a sample; and an insulated handle that is connected to one longitudinal end of the sampling body. The sampling component contacts directly electrical contacts of an external power supply after being positioned in a analysis chamber, the power supply is turned on to vaporize the sample, and the power is turned off immediately after the sampling component removed from the chamber. The power consumption and a malfunction caused by long-term use of the sampling device under a high temperature can be avoided. A sampling device having the sampling component and an ion mobility spectrometer having the sampling device are also provided.

摘要翻译： 一种采样部件，包括可被电加热并且其外表面具有用于接收样品的擦拭采样区域的采样体; 以及连接到采样体的一个纵向端的绝缘手柄。 采样部件定位在分析室中后，直接与外部电源的电接点接触，电源接通以使样品汽化，并且在从腔室中取出取样部件后立即关闭电源。 功耗降低，并且可以避免在高温下长期使用取样装置引起的故障。 还提供了具有取样分量的采样装置和具有采样装置的离子迁移谱仪。

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：US08141441B2

公开(公告)日：2012-03-27

申请号：US12228054

申请日：2008-08-07

申请人： Yangtian Zhang ,  Jianhua Liu ,  Yaoxin Wang ,  Hua Peng

发明人： Yangtian Zhang ,  Jianhua Liu ,  Yaoxin Wang ,  Hua Peng

IPC分类号： G01N1/04

CPC分类号： G01N1/02 ,  G01N2001/022 ,  G01N2001/028

摘要： A hand-held sampling apparatus used for an ion mobility spectrometer and method of obtaining a sample are provided to prevent deformation of sampling wipes when detecting explosives and drugs. The apparatus has a body comprising a handle in the rear portion and a wiping sampling mechanism in the front portion, with a wiping surface located on its underside. The sampling wipe can be in full contact with the surface of the object during wiping to improve wiping efficiency. Correspondingly, a smaller sample inlet port can be disposed on the analyzer so as to save a large amount of sampling wipes. and meanwhile avoid sampling wipes from deformation and folds hard to restore, thereby ensuring subsequent sample insertion operation, enhancing the efficiency of both sample collection and sample injection and improving the detection performance for the analytes to be detected. The method of using said sampling device according to the present invention comprises the following steps: attaching a sampling wipe to the swiping surface; fixing the front end portion of the sampling wipe by using the front holder, and fixing the rear end portion of the sampling wipe by using the rear holder. The method of the present invention is simple and convenient.

摘要翻译： 提供用于离子迁移谱仪的手持取样装置和获得样品的方法，以防止在检测爆炸物和药物时采样湿巾变形。 该装置具有主体，该主体包括在后部的手柄和在前部中的擦拭取样机构，其擦拭表面位于其下侧。 在擦拭过程中，取样擦拭物可以与物体的表面充分接触以提高擦拭效率。 相应地，可以在分析器上设置较小的样品入口，以便节省大量的采样湿巾。 同时避免采样湿巾变形，折叠难以恢复，从而确保随后的样品插入操作，提高样品收集和样品注入的效率，并提高待检测分析物的检测性能。 根据本发明的使用所述采样装置的方法包括以下步骤：将取样擦拭物附接到所述滑动表面; 通过使用前保持器固定取样擦拭物的前端部分，并且通过使用后支架固定取样擦拭物的后端部分。 本发明的方法简单方便。