-
公开(公告)号：US20240272122A1
公开(公告)日：2024-08-15
申请号：US18109094
申请日：2023-02-13
发明人： Chady Stephan
CPC分类号： G01N27/68 , G01N21/714 , G01N30/72
摘要： Systems and methods for use in introducing samples to an analytical instrument. In particular, systems and methods to process moisture sensitive/reactive gases and then analyze by an analytical device/instrument using also a liquid calibrant sample. Suitable analytical devices include, for example, an inductively coupled plasma-mass spectrometer or inductively coupled plasma-optical emission spectrometer.
-
公开(公告)号：US20170004958A1
公开(公告)日：2017-01-05
申请号：US15192665
申请日：2016-06-24
发明人： Mike Black , Matthew Hart , John Somerville , Alastair Taylor , Iva Manasi , Max Allsworth
CPC分类号： H01J49/0422 , G01N27/622 , G01N27/624 , G01N27/68 , H01J49/40 , H01J49/403
摘要： An ion mobility gas detector apparatus including a detector core, an inlet gas path, an exhaust gas path, a source of diluent gas, and at least one or more sensors for measuring temperature, pressure and humidity of gas streams. Further included is a mixing mechanism adapted to mix at least first and second gas streams in response to one or more sensor measurements. A controller is provided for applying drive signals to the detector core.
摘要翻译： 包括检测器芯，入口气体路径，排气路径，稀释气体源以及用于测量气流的温度，压力和湿度的至少一个或多个传感器的离子迁移率气体检测器装置。 还包括一种混合机构，其适于响应于一个或多个传感器测量值混合至少第一和第二气流。 提供了一种用于将驱动信号施加到检测器芯的控制器。
-
公开(公告)号：US09136084B2
公开(公告)日：2015-09-15
申请号：US13744196
申请日：2013-01-17
发明人： Teresa M. Marta , Fouad Nusseibeh
摘要： Micro discharge devices, methods, and systems are described herein. One device includes a non-conductive material, a channel through at least a portion of the non-conductive material having a first open end and a second open end, a first electrode proximate to a first circumferential position of the channel between the first open end and the second open end, a second electrode proximate to a second circumferential position of the channel between the first open end and the second open end, a discharge region defined by a portion of the channel between the first electrode and the second electrode, an optical emission collector positioned to receive an optical emission from the discharge region, and a discharge shielding component between the discharge region and the optical emission collector.
摘要翻译： 本文描述了微放电装置，方法和系统。 一个装置包括非导电材料，穿过非导电材料的至少一部分的通道，其具有第一开口端和第二开放端，第一电极靠近通道的第一周向位置在第一开口端 并且所述第二开口端，靠近所述通道在所述第一开口端和所述第二开口端之间的第二圆周位置的第二电极，由所述第一电极和所述第二电极之间的所述通道的一部分限定的放电区域， 发射集电体，其被定位成接收来自放电区域的光发射;以及放电屏蔽部件，位于放电区域和发光集电体之间。
-
4.发明申请公开(公告)号：US20150054521A1
公开(公告)日：2015-02-26
申请号：US14382600
申请日：2012-03-15
IPC分类号： G01N27/68
CPC分类号： G01N27/68 , G01N27/70 , G01N30/64 , G01N2030/647
摘要： An aging treatment is performed by using cleaning gas obtained by mixing inert gas, as an impurity, to plasma gas. Plasma generation by dielectric-barrier discharge is performed until a predetermined period of time has elapsed by applying high AC voltage to an electrode while supplying the cleaning gas to a dielectric tube from a gas inlet.
摘要翻译： 使用通过将惰性气体作为杂质混合而获得的清洁气体进行等离子体气体来进行时效处理。 通过介电阻挡放电进行等离子体生成，直到通过向电极施加高交流电压而经过预定时间段，同时从气体入口向介电管提供清洁气体。
-
公开(公告)号：US08921778B2
公开(公告)日：2014-12-30
申请号：US13858288
申请日：2013-04-08
CPC分类号： G01N27/622 , G01N27/62 , G01N27/68 , H01J49/0045 , H01J49/40
摘要： An ion mobility spectrometer has a pair of electrodes and midway along the drill chamber. A high field is applied between the electrodes and sufficient to modify ions in the region of the electrodes such that they move at a different rate towards the collector plate. This is used to modify the time of flight of selected ions or ion clusters and enable identification of ambiguous peaks on the IMS spectrum.
摘要翻译： 离子迁移谱仪具有一对电极和沿着钻室的中途。 在电极之间施加高电场并足以改变电极区域中的离子，使得它们以不同的速率朝向集电板移动。 这用于修改所选择的离子或离子簇的飞行时间，并使得能够识别IMS谱上的模糊峰。
-
6.发明授权Corona discharge device and ion mobility spectrometer having corona discharge device 有权具有电晕放电装置的电晕放电装置和离子迁移谱仪公开(公告)号：US08921771B2
公开(公告)日：2014-12-30
申请号：US14005820
申请日：2012-11-29
发明人： Zhiqiang Chen , Qingjun Zhang , Shuqiang Dong , Yuanjing Li , Ziran Zhao , Yinong Liu , Yan Zheng
CPC分类号： H01T19/04 , G01N27/622 , G01N27/68 , H01J27/022 , H01J49/168 , H01J49/26
摘要： The present invention provides a corona discharge device, comprising a first electrode including: a first substantially cylindrical inner chamber portion and a second substantially conical inner chamber portion in communication with the first inner chamber portion, wherein the second inner chamber portion has a cross sectional area that gradually enlarges in a direction away from the first inner chamber portion. The present invention also provides an ion mobility spectrometer comprising: an ionization region; and the corona discharge device disposed in the ionization region. With the above construction and structure, the ion mobility spectrometer of the present invention has the advantages that extraction of ions is facilitated and a life time of the corona electrode is lengthened. In addition, the focusing and storing electrode is used to effectively shield interference of a corona discharge pulse, and to push and focus sample ions. A designed voltage control solution is used to achieve mobility differentiating of ions, while a corona pulse is shielded to prevent variation in an ion quantity due to the corona pulse, thereby achieving an effect of stabilizing mobility spectrum lines.
摘要翻译： 本发明提供一种电晕放电装置，包括：第一电极，包括：与第一内室部分连通的第一基本上圆柱形的内室部分和第二基本上圆锥形的内室部分，其中第二内室部分具有横截面积 其在远离第一内室部分的方向上逐渐扩大。 本发明还提供了一种离子迁移谱仪，包括：电离区域; 以及设置在电离区域中的电晕放电装置。 通过上述结构和结构，本发明的离子迁移谱仪具有促进离子提取和电晕电极寿命延长的优点。 此外，聚焦和存储电极用于有效屏蔽电晕放电脉冲的干扰，并推动和聚焦样品离子。 使用设计的电压控制解决方案来实现离子的移动性差异，同时屏蔽电晕脉冲以防止由于电晕脉冲引起的离子量的变化，从而实现稳定迁移率谱线的效果。
-
公开(公告)号：US08797041B2
公开(公告)日：2014-08-05
申请号：US13092003
申请日：2011-04-21
摘要： A discharge ionization current detector using a low-frequency dielectric barrier discharge with an improved S/N ratio is provided. A current detector 20 is disposed between an excitation high-voltage power source 8 and a discharge electrode 5 to detect a discharge current flowing in pulses due to plasma generation. The detection signal of the current detector 20 and an output signal from a current amplifier 18 for amplifying an ion current are inputted into an output extraction unit 21. The output extraction unit 21 detects a precipitous-rise portion of the discharge current detection signal and generates a trigger signal, and then extracts an ion current signal for a predetermined time period from the trigger signal. This can remove an influence of a noise appearing in a signal during a time period where no plasma emission is generated, thereby improving the S/N ratio of the detection signal.
摘要翻译： 提供使用具有改善的S / N比的低频电介质阻挡放电的放电电离电流检测器。 电流检测器20设置在激发高压电源8和放电电极5之间，以检测由于等离子体产生而以脉冲流动的放电电流。 电流检测器20的检测信号和用于放大离子电流的电流放大器18的输出信号被输入到输出提取单元21.输出提取单元21检测放电电流检测信号的急剧上升部分，并产生 触发信号，然后从触发信号提取预定时间段的离子电流信号。 这可以消除在不产生等离子体发射的时间段期间出现在信号中的噪声的影响，从而提高检测信号的S / N比。
-
公开(公告)号：US20140008527A1
公开(公告)日：2014-01-09
申请号：US13858288
申请日：2013-04-08
IPC分类号： G01N27/62
CPC分类号： G01N27/622 , G01N27/62 , G01N27/68 , H01J49/0045 , H01J49/40
摘要： An ion mobility spectrometer has a pair of electrodes and midway along the drill chamber. A high field is applied between the electrodes and sufficient to modify ions in the region of the electrodes such that they move at a different rate towards the collector plate. This is used to modify the time of flight of selected ions or ion clusters and enable identification of ambiguous peaks on the IMS spectrum.
摘要翻译： 离子迁移谱仪具有一对电极和沿着钻室的中途。 在电极之间施加高电场并足以改变电极区域中的离子，使得它们以不同的速率朝向集电板移动。 这用于修改所选择的离子或离子簇的飞行时间，并使得能够识别IMS谱上的模糊峰。
-
公开(公告)号：US20110260732A1
公开(公告)日：2011-10-27
申请号：US13092003
申请日：2011-04-21
IPC分类号： G01N27/62
摘要： A discharge ionization current detector using a low-frequency dielectric barrier discharge with an improved S/N ratio is provided. A current detector 20 is disposed between an excitation high-voltage power source 8 and a discharge electrode 5 to detect a discharge current flowing in pulses due to plasma generation. The detection signal of the current detector 20 and an output signal from a current amplifier 18 for amplifying an ion current are inputted into an output extraction unit 21. The output extraction unit 21 detects a precipitous-rise portion of the discharge current detection signal and generates a trigger signal, and then extracts an ion current signal for a predetermined time period from the trigger signal. This can remove an influence of a noise appearing in a signal during a time period where no plasma emission is generated, thereby improving the S/N ratio of the detection signal.
摘要翻译： 提供使用具有改善的S / N比的低频电介质阻挡放电的放电电离电流检测器。 电流检测器20设置在激发高压电源8和放电电极5之间，以检测由于等离子体产生而以脉冲流动的放电电流。 电流检测器20的检测信号和用于放大离子电流的电流放大器18的输出信号被输入到输出提取单元21.输出提取单元21检测放电电流检测信号的急剧上升部分，并产生 触发信号，然后从触发信号提取预定时间段的离子电流信号。 这可以消除在不产生等离子体发射的时间段期间出现在信号中的噪声的影响，从而提高检测信号的S / N比。
-
公开(公告)号：US07932489B2
公开(公告)日：2011-04-26
申请号：US11918940
申请日：2006-04-20
IPC分类号： H01J49/40
CPC分类号： G01N27/622 , G01N27/62 , G01N27/68 , H01J49/0045 , H01J49/40
摘要： An ion mobility spectrometer has a pair of electrodes (13A) and (13B) midway along the drift chamber (7). A high field is applied between the electrodes (13A) and (13B) sufficient to modify (e.g. fragment) ions in the region of the electrodes such that they move at a different rate towards the collector plate (8) . This is used to modify the time of flight of selected ions or ion clusters and enable identification of ambiguous peaks on the IMS spectrum.
摘要翻译： 离子迁移谱仪在漂移室（7）的中途具有一对电极（13A）和（13B）。 在电极（13A）和（13B）之间施加足以在电极区域中修饰（例如片段）离子的高场，使得它们以不同的速率朝向集电板（8）移动。 这用于修改所选择的离子或离子簇的飞行时间，并使得能够识别IMS谱上的模糊峰。
-
-
-
-
-
-
-
-
-
搜索结果
128 条记录 (耗时 0.019 秒)
