Automated Pressurized Fluid Extraction for Accurate and Reproducible Determination of SVOCs in SoilNew Organic Monitoring Techniques
Poster Presentation
Prepared by A. Stell, B. Liu
CEM Corporation, 3100 Smith Farm Rd., Matthews, NC, 28106, United States
Contact Information: [email protected]; 704-821-7015
ABSTRACT
Semi-Volatile Organic Compounds (SVOCs) pose ongoing risks to human health, making reliable environmental monitoring critical. Originating from both natural and human sources, they accumulate in the environment, giving rise to strict exposure and environmental limits. Effective monitoring of SVOCs in solid matrices such as soil depends on robust and efficient sample preparation techniques. Traditionally manual solvent extraction has been employed, which can be time-consuming, inconsistent, and susceptible to human error. Furthermore, manual solvent extraction often requires large volumes and unwanted solvents such as dichloromethane. In this study, an automated pressurized fluid extraction system was evaluated for the solvent extraction of contaminated soil samples, including both a spiked soil and a certified reference material (CRM). Good precent recovery and reproducibly was achieved, while also reducing solvent consumption and eliminating the use of dichloromethane. The results demonstrate the suitability of this automated approach for accurate and reproducible solvent extraction of SVOCs from soil matrices.
