Improved Automated Sample Preparation for Persistent Organic Pollutants using Parallel Gas Assisted Accelerated Solvent Extraction and Automated Solvent Concentration

New Organic Monitoring Techniques
Oral Presentation

Prepared by C. Shevlin1, R. Ullah2, M. Wang3, Y. Liu1, F. Galbiati1
1 - Thermo Fisher Scientific, 490 Lakeside Dr, Sunnyvale, CA, 82801, United States
2 - Thermo Fisher Scientific, 490 Lakeside Dr, Sunnyvale, CA, 94085, United States
3 - Thermo Fisher Scientific, China Innovation Center, Shanghai, , China

Contact Information: [email protected]; 774-402-0647


Accelerated solvent extraction is a high-temperature and high-pressure extraction technique that is widely used in environmental, chemical and food analysis. New advancements have been made in accelerated solvent extraction which allows for a more efficient and controlled extraction to allow for better extraction over traditional methods and devices. Gas assisted extraction is a new method employed for extracting analytes of interest from a solid or semi-solid matrix, that uses a mixture of a liquid solvent at a constant flow rate. Gas assisted extraction can be more effective as compared to static extraction methods. In addition, when done in parallel, this new technique yields many advantages. Furthermore, the solvent evaporation process is fully incorporated into the automated process.

In this presentation, we discuss a new parallel gas assisted extraction for pursuing extractions and by quantitation for PFAS and persistence organic pollutants (POPs). We present here performance data of the new method for analyte extraction and evaporation in the same platform from soil samples for different POP. Unlike traditional methods such as liquid-solvent extraction followed by N2 stream evaporation, the fully automated solvent extraction and evaporation system saves time, solvent, and labor, while ensuring high reproducibility and productivity for analytical testing.