ABSTRACT
Monitoring of volatile organic compounds (VOCs) in the environment has become a subject of concern because many of these compounds are toxic and persistent[1] and, in addition, are responsible for odor and taste problems in various types of water.[2] Their presence in water is mainly associated with industrial and urban discharges, chlorination of municipal wastewater, or on-land application of pesticides.[3] Analysis of VOCs has been performed using various techniques involving purge and trap (P&T), headspace, liquid-liquid extraction, solid-phase microextraction (SPME), or closed loop stripping analysis (CLSA).[4] However, P&T is the most commonly used technique because it permits the extraction of a wide range of analytes of different chemistries.
