USEPA 524.2 Method Validation Using the Evolution Purge and Trap Concentrator and the Centurion WS Autosampler

In order to measure low level purgeable volatile organic compounds in water, the United States Environmental Protection Agency (USEPA) developed the 524.2 method. This method requires a 5mL or 25mL purge volume and can be further complicated by the mandatory lower detection limits and an extended four minute desorb time. These constraints can be problematic for laboratories due to the large amount of water the system is exposed to. This application will utilize the requisite method parameters and examine the linearity, detection, precision and accuracy of the EST Analytical Evolution and Centurion purge and trap sampling system.