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Introduction to Ozone Instrumentation and Analysis

Introduction to Ozone Instrumentation and Analysis. Nate Herbst, Southern Ute Indian Tribe Joe Hameed, ITEP/TAMS. Intro to Instruments and Analysis. What type of instrumentation is used? What type of analysis is employed? How is the analysis performed? How does the analyzer work?.

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Introduction to Ozone Instrumentation and Analysis

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  1. Introduction to OzoneInstrumentation and Analysis Nate Herbst, Southern Ute Indian Tribe Joe Hameed, ITEP/TAMS

  2. Intro to Instruments and Analysis • What type of instrumentation is used? • What type of analysis is employed? • How is the analysis performed? • How does the analyzer work?

  3. Ozone Analyzer Basics • Design based on U.V absorption • U.V photometry  [O3] Some pictures of the Thermo 49C

  4. Theory of Analysis • Ozone absorbs 240nm U.V radiation • Dual cell technique  ambient and zero absorptions • Zero and ambient absorptions compared • Ozone concentration = ambient absorption – zero absorption

  5. U. V. Photometric Absorption • Remember: ozone absorbs U.V. Photo courtesy of University of Wisconsin General Chemistry Class. Ozone absorbing U.V radiation. Animation by NASA. Amount of U.V light leaving cell #1 corresponds to [O3] Amount of U.V light leaving cell #2 provides your blank U.V. Lamp Zero air Ambient air Detector

  6. Ozone Analyzer Optical System (Thermo Env. 49C)

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