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Air analysis with quick, reliable results.

In 1972, Wilks Scientific Corporation introduced a portable gas analyzer based on the infrared (IR) analytical principle. In the ensuing four years, more than 1000 infrared toxic vapor analyzers have been delivered, with the annual sales volume for this type of product passing $2.5 million. The original MIRAN-I Gas Analyzer has evolved into a family of instruments ranging from low-cost battery-operated specific-vapor analyzers to multi-station continuous monitors with automatic alarm and data-collecting facilities. The rapid acceptance and widespread use of the infrared technique is the result of several fundamental characteristics that make it ideal for toxic vapor analysis in ambient air. These will become clear after a brief review of IR spectroscopy.