Abstract
Abstract A compact, fast-response instrument for measuring atmospheric NO 2 by single-wavelength excitation laser-induced fluorescence (LIF) technique was improved. A single-pass alignment of a more powerful, pulsed laser was utilized to realize the pptv (=10 −12 by volume) of the limit of detection (LOD). As a result, the LOD reached 1.8 pptv for 1-min averaging ( S / N =1). To determine the instrumental zero accurately, interference by particles was cancelled out utilizing an NO 2 scrubber tube coated with a mixture of titanium dioxide (TiO 2 ) and hydroxyapatite. Consequently, it was confirmed that the combination of the improved single-wavelength LIF instrument with the scrubber was reasonable for measuring atmospheric NO 2 .
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
