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.

公开(公告)号：US06764857B2

公开(公告)日：2004-07-20

申请号：US10267807

申请日：2002-10-09

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.

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。

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

IPC分类号： G01N1/22 ,  G01N1/40 ,  G01N31/00 ,  G01N33/00

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。