Fluorescence detection of atmospheric nitrogen dioxide using a blue light-emitting diode as an excitation source.
We report on the development of a low-cost and compact instrument for quantifying atmospheric NO(2) concentrations by detecting NO(2) fluorescence using a commercial light-emitting diode around 435 nm as a fluorescence excitation light source. The minimum detectable limit of the NO(2) instrument developed has been estimated to be 9.8 parts per billion of volume mixing ratio (ppbv) in a 60 s integration time and with a signal-to-noise ratio of 2.
Matsumi
Yutaka
Y
Solar-Terrestrial Environment Laboratory and Graduate School of Science, Nagoya University, Furo-cho, Chigusa-ku, Nagoya, Aichi 464-8601, Japan. matsumi@nagoya-u.jp
Taketani
Fumikazu
F
Takahashi
Kenshi
K
Nakayama
Tomoki
T
Kawai
Megumi
M
Miyao
Yuka
Y