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Continuous Analyzer for Volatile Organic Compounds in Air and Water

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Continuous Analyzer for Volatile Organic Compounds in Air and Water

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  • Author: MURATA Akihiro, SHIBATA Shozo, SAITO Mika
Environmental pollution caused by volatile organic compounds (VOCs) has become a global environment issue, including issues on effects upon health. This paper introduces a system based on detection and sampling technologies and developed for measuring VOCs in the global environment. Small amounts of VOCs are measured with a gas chromatograph or photoionization detector (PID). VOCs in water are sampled using a sparging method. A small quantity of VOC constituents of more than 20 different types can be measured with a gas chromatograph using a programmed temperature oven. The PID can detect a ppb level of VOCs that are ionized using a vacuum ultraviolet radiation lamp. We expect these devices will be useful for improving the global environment.

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