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公开(公告)号：US5571945A
公开(公告)日：1996-11-05
申请号：US403321
申请日：1995-03-13
CPC分类号： G01N15/0618
摘要： Apparatus for measuring the amount of particulate matter in a gas having a gas supply, a first particulate matter collector downstream of the gas supply and in gaseous communication with the gas supply, and a second particulate matter collector downstream of the gas supply and in gaseous communication with the gas supply. Gas from the gas supply to the second particular matter collector is passed through a particle remover to remove particulate matter prior to contact of gas from the gas supply with the second particulate matter collector. A pressure sensor is provided to measure differential pressure between the first particulate matter collector and the second particulate matter collector, and at least one pump to cause gas to pass from the gas supply to the first particulate matter collector and the second particulate matter collector.
摘要翻译： 用于测量具有气体供应的气体中的颗粒物质的量的装置，在气体供应器下游并与气体供应气体连通的第一颗粒物质收集器，以及在气体供应器和气体通路下游的第二颗粒物质收集器 与气体供应。 在气体供应与第二颗粒物收集器接触之前，从气体供应到第二特定物质收集器的气体通过颗粒去除器去除颗粒物质。 提供压力传感器来测量第一颗粒物质收集器和第二颗粒物质收集器之间的压差，以及至少一个泵，以使气体从气体供应通过到第一颗粒物质收集器和第二颗粒物质收集器。
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2.发明授权
公开(公告)号：US5932795A
公开(公告)日：1999-08-03
申请号：US785929
申请日：1997-01-22
CPC分类号： G01N1/2273 , G01N1/2205 , G01N15/0255 , G01N15/0618 , G01N1/2208 , G01N1/24
摘要： Methods and apparatus for the continuous monitoring of ambient particulate mass in a gas sample encompassing the monitoring of PM.sub.10, (particulate matter greater than 10 .mu.m) and coarse particles (2.5 to 10 .mu.m), the determination of the size distribution of particles, the determination of particle density and the determination of particle-bound water, utilizing such laboratory equipment as an inertial impactor, a virtual impactor, diffusion dryer(s), HEPA filter(s), particulate matter collector(s), and pressure transducer(s).
摘要翻译： 包括监测PM10（颗粒物大于10微米）和粗颗粒（2.5〜10微米）的气体样品中的环境颗粒物质的连续监测方法和装置，颗粒尺寸分布的确定， 使用这种实验室设备作为惯性冲击器，虚拟冲击器，扩散干燥器，HEPA过滤器，颗粒物质收集器和压力传感器（例如， s）。
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公开(公告)号：US20100242633A1
公开(公告)日：2010-09-30
申请号：US12729669
申请日：2010-03-23
IPC分类号： G01N1/22
CPC分类号： G01N1/2208 , G01N33/497 , G01N2001/2223
摘要： One aspect of the invention relates to the devices and methods for the collection of bioaerosols (such as viruses, bacteria, and proteins) from the exhaled breath of humans and/or animals, for the purpose of determining, for example, particle size, generation rate, diseases and interventions for particle release.
摘要翻译： 本发明的一个方面涉及用于从人和/或动物的呼出气体中收集生物气溶胶（例如病毒，细菌和蛋白质）的装置和方法，以确定例如粒度，产生 速率，疾病和颗粒释放的干预措施。
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公开(公告)号：US06435043B1
公开(公告)日：2002-08-20
申请号：US09540397
申请日：2000-03-31
IPC分类号： G01N1510
CPC分类号： G01N15/0255 , G01N1/2208 , G01N2015/0261
摘要： The present disclosure relates to a method of collecting particles in a gas sample comprising impacting particles in the gas sample on a porous material, as well as to impactors wherein an inertial impactor includes a porous substrate.
摘要翻译： 本公开涉及一种在气体样品中收集颗粒的方法，包括在多孔材料上冲击气体样品中的颗粒，以及冲击器，其中惯性冲击器包括多孔基材。
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5.发明授权公开(公告)号：US08250903B2
公开(公告)日：2012-08-28
申请号：US12729669
申请日：2010-03-23
IPC分类号： G01N1/22
CPC分类号： G01N1/2208 , G01N33/497 , G01N2001/2223
摘要： Provided are devices and methods for the collection of bioaerosols (such as viruses, bacteria, and proteins) from the exhaled breath of humans and/or animals, for the purpose of determining, for example, particle size, generation rate, diseases and interventions for particle release.
摘要翻译： 提供了用于从人和/或动物的呼出气体中收集生物气溶胶（例如病毒，细菌和蛋白质）的装置和方法，以确定例如粒径，发生率，疾病和干预措施 颗粒释放。
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公开(公告)号：US5302191A
公开(公告)日：1994-04-12
申请号：US938854
申请日：1992-09-01
CPC分类号： B01D51/10 , B01D50/002 , G01N1/2205 , G01N1/2214 , G01N2001/2217 , G01N2001/2223
摘要： A denuder for collection of gases, consisting of a plurality of generally parallel elongated tubes having a surface formed from an inert non-metallic material, said tubes being configured and arranged to allow recovery of gaseous material collected on each said surface.
摘要翻译： 一种用于收集气体的分解器，由多个具有由惰性非金属材料形成的表面的大致平行的细长管组成，所述管被构造和布置成允许回收在每个所述表面上收集的气态物质。
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公开(公告)号：US5185129A
公开(公告)日：1993-02-09
申请号：US662164
申请日：1991-02-28
申请人： Petros Koutrakis , Jack M. Wolfson
发明人： Petros Koutrakis , Jack M. Wolfson
IPC分类号： G01N31/22
CPC分类号： G01N31/225 , Y10S436/902
摘要： An ozone monitor including an ozone reactive surface, held within a container, which is adapted to specifically react with ozone. The surface is also adapted to fail to react with nitrogen dioxide in an amount which affects ozone quantitation by more than 20% when the nitrogen dioxide is provided at a concentration of 76 ppb and ozone is provided at a concentration of 30 ppb within a test gas.
摘要翻译： 一种包含臭氧反应性表面的臭氧监测器，其保持在容器内，适于与臭氧特异性地反应。 当二氧化氮浓度为76ppb，臭氧在试验气体中以30ppb的浓度提供时，该表面还适于与二氧化氮反应的量会影响臭氧定量超过20％ 。
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公开(公告)号：US20050059157A1
公开(公告)日：2005-03-17
申请号：US10895240
申请日：2004-07-20
申请人： George Allen , Petros Koutrakis , Yiming Ding
发明人： George Allen , Petros Koutrakis , Yiming Ding
CPC分类号： G01N31/005 , G01N1/2205 , G01N1/40 , G01N33/0037 , G01N2001/2223 , Y02A50/245 , Y10T436/17 , Y10T436/173076 , Y10T436/176921
摘要： The systems and methods described herein relate to the measurement of nitrate levels in a sample of gas, for example, air, exhaust, or other sources of gas. Moreover, the systems and methods described herein are capable of operating using short sample collection periods, permitting rapid data collection and finely time-resolved nitrate monitoring over a span of time. Additionally, ambient nitrate can effectively be distinguished from other airborne particles, such as sulfate and carbon.
摘要翻译： 本文所述的系统和方法涉及测量气体样品中的硝酸盐水平，例如空气，废气或其他气体来源。 此外，本文描述的系统和方法能够使用短的采样周期进行操作，允许快速数据收集和在一段时间内精细地定时硝酸盐监测。 此外，环境硝酸盐可以有效地与其他空气传播的颗粒，如硫酸盐和碳。
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公开(公告)号：US06503758B1
公开(公告)日：2003-01-07
申请号：US09687190
申请日：2000-10-12
申请人： George A. Allen , Petros Koutrakis , Yiming Ding
发明人： George A. Allen , Petros Koutrakis , Yiming Ding
IPC分类号： G01N3300
CPC分类号： G01N31/005 , G01N1/2205 , G01N1/40 , G01N33/0037 , G01N2001/2223 , Y02A50/245 , Y10T436/17 , Y10T436/173076 , Y10T436/176921
摘要： The systems and methods described herein relate to the measurement of nitrate levels in a sample of gas, for example, air, exhaust, or other sources of gas. Moreover, the systems and methods described herein are capable of operating using short sample collection periods, permitting rapid data collection and finely time-resolved nitrate monitoring over a span of time. Additionally, ambient nitrate can effectively be distinguished from other airborne particles, such as sulfate and carbon.
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10.发明授权Virtual impactor for removing particles from an airstream and method for using same 失效用于从气流中去除颗粒的虚拟冲击器及其使用方法
公开(公告)号：US5425802A
公开(公告)日：1995-06-20
申请号：US57748
申请日：1993-05-05
摘要： A virtual impactor that can remove essentially all of the particles from an airstream is disclosed. Also disclosed are a method of separating particles from the airstream using this virtual impactor, a method of concentrating the particulate matter in an airstream, and the concentrated airstream.
摘要翻译： 公开了一种可以从气流中基本上除去所有颗粒的虚拟冲击器。 还公开了使用该虚拟冲击器从空气流中分离颗粒的方法，将颗粒物质浓缩在气流中的方法和浓缩气流。
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