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Methods used for the quantitative measurement of ozone (O3) in commercial instrumentation are reviewed. The limits of specificity, sensitivity, accuracy, repeatability, and response time are discussed. Characteristics of the ozone-ethylene (O3-CH2:CH2) chemiluminescent reaction which make it the preferred method are examined. Major subsystems of the chemiluminescent analyzer are presented, with consideration of the important parameter variations associated with each. Basic specifications, operating conditions, and typical maintenance tasks are summarized. Finally, a brief look at recent developments and future trends is given.
air, ozone, measurement, chemiluminescence, photometers, detectors, analyzers, monitors
REM Scientific Inc., Santa Monica, Calif.
President, REM Scientific Inc., Santa Monica, Calif.