Certified Industrial Hygienist (CIH) [exam-quick]

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Which of the following direct-reading instruments is most suitable for detecting a broad range of volatile organic compounds (VOCs) at low parts-per-million (ppm) levels and operates by using a high-energy ultraviolet lamp to ionize the target molecules?

Electrochemical Sensor Catalytic Combustion Sensor Non-Dispersive Infrared (NDIR) Analyzer Photoionization Detector (PID)

Correct Answer:

Photoionization Detector (PID)

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