caa a22 4500 445370955 CHVBK 20180317142946.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s00340-011-4647-4 doi (NATIONALLICENCE)springer-10.1007/s00340-011-4647-4 Real-time measurement of nitrogen dioxide in vehicle exhaust gas by mid-infrared cavity ring-down spectroscopy [Elektronische Daten] [Y. Yamamoto, H. Sumizawa, H. Yamada, K. Tonokura] The application of pulsed cavity ring-down spectroscopy (CRDS) was demonstrated for the measurement of nitrogen dioxide (NO2) in automotive exhaust gas. The transition of the ν 3 vibrational band assigned to the antisymmetric stretching mode of NO2 was probed with a thermoelectrically cooled, pulsed, mid-infrared, distributed feedback, quantum cascade laser (QCL) at 6.13μm. The measurement of NO2 in the exhaust gas from two diesel vehicles equipped with different aftertreatment devices was demonstrated using a CRDS-based NO2 sensor, which employs a HEPA filter and a membrane gas dryer to remove interference from water as well as particulates in the exhaust gas. Stable and sensitive measurement of NO2 in the exhaust gas was achieved for more than 30minutes with a time resolution of 1s. Springer-Verlag, 2011 Yamamoto Y. Environmental Science Center, The University of Tokyo, 7-3-1 Hongo, 113-0033, Bunkyo-ku, Tokyo, Japan aut Sumizawa H. Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, 113-8656, Bunkyo-ku, Tokyo, Japan aut Yamada H. National Traffic Safety and Environment Laboratory, 7-42-27 Jindaiji-Higashimachi, 182-0012, Chofu, Tokyo, Japan aut Tonokura K. Environmental Science Center, The University of Tokyo, 7-3-1 Hongo, 113-0033, Bunkyo-ku, Tokyo, Japan aut Applied Physics B Springer-Verlag 105/4(2011-12-01), 923-931 0946-2171 105:4<923 2011 105 340 https://doi.org/10.1007/s00340-011-4647-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-011-4647-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yamamoto Y. Environmental Science Center, The University of Tokyo, 7-3-1 Hongo, 113-0033, Bunkyo-ku, Tokyo, Japan aut NATIONALLICENCE 700 1- Sumizawa H. Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, 113-8656, Bunkyo-ku, Tokyo, Japan aut NATIONALLICENCE 700 1- Yamada H. National Traffic Safety and Environment Laboratory, 7-42-27 Jindaiji-Higashimachi, 182-0012, Chofu, Tokyo, Japan aut NATIONALLICENCE 700 1- Tonokura K. Environmental Science Center, The University of Tokyo, 7-3-1 Hongo, 113-0033, Bunkyo-ku, Tokyo, Japan aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 105/4(2011-12-01), 923-931 0946-2171 105:4<923 2011 105 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer