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Applied Optics

Applied Optics


  • Vol. 22, Iss. 22 — Nov. 15, 1983
  • pp: 3618–3621

Repetitive-scanning derivative spectrometer as a monitor of environmental air pollution

Takusuke Izumi and Nobuaki Takeda  »View Author Affiliations

Applied Optics, Vol. 22, Issue 22, pp. 3618-3621 (1983)

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The derivative spectrometer, developed for monitoring environmental air pollutants, employs signal processing to subtract the mean value of the minima of second derivative from the maximum, and to average the subtracted values. The signal processing leads to compensation of the long-term drift and hence to improvement of the sensitivity, i.e., the detection limit is 2–3 ppb or less for such gases as SO2, NO, and NO2, under circumstances where the ambient temperature fluctuates between 0 and 40°C.

© 1983 Optical Society of America

Original Manuscript: August 31, 1982
Published: November 15, 1983

Takusuke Izumi and Nobuaki Takeda, "Repetitive-scanning derivative spectrometer as a monitor of environmental air pollution," Appl. Opt. 22, 3618-3621 (1983)

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  1. R. N. Hager, Anal. Chem. 45, 1131A (1973).
  2. T. Izumi, K. Nakamura, J. Phys. E 14, 105 (1981). [CrossRef]
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  6. J. W. Strojek, D. Yates, T. Kuwana, Anal. Chem. 47, 1050 (1975). [CrossRef]

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