VOCARB Purge Traps for GC Analyses of Volatile Organic Compounds in Wastewater

This application note demonstrates that VOCARB purge traps are ideal for monitoring volatile organic compounds (VOCs) in water, due to their adsorption/desorption characteristics, thermal stability, and hydrophobicity. Analysts monitoring wastewater samples for volatile organic compounds according to US EPA Methods 624/1624 must concentrate their samples, using a purge and trap technique, prior to chromatographic analysis. This type of concentration and sample transfer can present several difficulties and so careful selection of adsorbent materials must be employed to minimize these problems.