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Volume 25 Issue 1
Sep.  2013
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Study of sensitive photoacoustic spectrometer and biological application

  • 1.

    Southwest Institute of Technical Physics, Chengdu, 610041;

  • 2.

    Department of Optoelectric Science and Technology, Sichuan University, Chengdu, 610064

  • 3.

    Department of Physics, Dalian University of Technology, Dalian, 116024

  • Received Date: 1999-10-20
    Accepted Date: 1999-12-14
  • A sensitive intracavity photoacoustic spectrometer,which consists of a CO/CO2 laser, a longitudinal resonant photoacoustic cell, a plant gas sampling system and a computer control and data processing system, is able to measure many kinds of gases relevant to plant trace gas exchange. The sensitivity limit of the system for ethylene measurement is 2×10-11.The system is applied to the study of stress reaction of nectarine fruit exposed to O3 by monitoring the variation of the ethylene production. The measurement is helpful for the study of fruit postharvest biology and preservation technique.
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  • [1]

    Sigrist M W. Air monitoring by spectroscopic techniques.New York:John Wiley Sons Inc,1994
    [2]

    Harren F,Reuss J. Encyclopedia of Applied Physics.1997;19:413～435
    [3] 葛自良.自然杂志,1999;21(1):12～14
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Study of sensitive photoacoustic spectrometer and biological application

  • 1. Southwest Institute of Technical Physics, Chengdu, 610041;
  • 2. Department of Optoelectric Science and Technology, Sichuan University, Chengdu, 610064
  • 3. Department of Physics, Dalian University of Technology, Dalian, 116024
  • Received Date: 1999-10-20
  • Accepted Date: 1999-12-14
  • Available Online: 2001-01-25

Abstract: A sensitive intracavity photoacoustic spectrometer,which consists of a CO/CO2 laser, a longitudinal resonant photoacoustic cell, a plant gas sampling system and a computer control and data processing system, is able to measure many kinds of gases relevant to plant trace gas exchange. The sensitivity limit of the system for ethylene measurement is 2×10-11.The system is applied to the study of stress reaction of nectarine fruit exposed to O3 by monitoring the variation of the ethylene production. The measurement is helpful for the study of fruit postharvest biology and preservation technique.

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