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Laboratory and Field Testing of an Automated Atmospheric Particle-Bound Reactive Oxygen Species Sampling-Analysis System
Joint Authors
Wang, Yungang
Chalupa, David C.
Utell, Mark J.
Sun, Liping
Hopke, Philip K.
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-03-24
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Pharmacy, Health & Medical Sciences
Medicine
Abstract EN
In this study, various laboratory and field tests were performed to develop an effective automated particle-bound ROS sampling-analysis system.
The system uses 2′ 7′-dichlorofluorescin (DCFH) fluorescence method as a nonspecific, general indicator of the particle-bound ROS.
A sharp-cut cyclone and a particle-into-liquid sampler (PILS) were used to collect PM2.5 atmospheric particles into slurry produced by a DCFH-HRP solution.
The laboratory results show that the DCFH and H2O2 standard solutions could be kept at room temperature for at least three and eight days, respectively.
The field test in Rochester, NY, shows that the average ROS concentration was 8.3±2.2 nmol of equivalent H2O2 m−3 of air.
The ROS concentrations were observed to be greater after foggy conditions.
This study demonstrates the first practical automated sampling-analysis system to measure this ambient particle component.
American Psychological Association (APA)
Wang, Yungang& Hopke, Philip K.& Sun, Liping& Chalupa, David C.& Utell, Mark J.. 2011. Laboratory and Field Testing of an Automated Atmospheric Particle-Bound Reactive Oxygen Species Sampling-Analysis System. Journal of Toxicology،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-470743
Modern Language Association (MLA)
Wang, Yungang…[et al.]. Laboratory and Field Testing of an Automated Atmospheric Particle-Bound Reactive Oxygen Species Sampling-Analysis System. Journal of Toxicology No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-470743
American Medical Association (AMA)
Wang, Yungang& Hopke, Philip K.& Sun, Liping& Chalupa, David C.& Utell, Mark J.. Laboratory and Field Testing of an Automated Atmospheric Particle-Bound Reactive Oxygen Species Sampling-Analysis System. Journal of Toxicology. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-470743
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-470743