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Chemical monitoring method and apparatus, and incinerator

  • US 20020048818A1
  • Filed: 11/13/2001
  • Published: 04/25/2002
  • Est. Priority Date: 11/25/1998
  • Status: Active Grant
First Claim
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1. A monitoring apparatus comprising:

  • a gas sampling unit for sampling flue gas or atmospheric air;

    an ion source for ionizing components present in very small amounts in said flue gas or atmospheric air under atmospheric pressure or a pressure based thereon;

    a mass analyzing unit, provided in a region evacuated to a pressure lower than atmospheric, for mass analysis of ions generated by said ion source and measuring their ion current signals; and

    a data processor for processing the measured signals;

    wherein at least one of dioxins, chlorobenzenes and chlorophenols in said flue gas or atmospheric air is monitored.

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