Recent Advances in Sample Preparation of POPs by a New Accelerated Solvent Extraction Technology

New Organic Monitoring Techniques
Oral Presentation

Prepared by C. Shevlin1, R. Ullah2, C. Qiu2, A. Wang2, Y. Liu2, H. El-Esawi2, M. Wang2
1 - Thermo Fisher Scientific, 490 Lakeside Drive, Sunnyvale, CA, 94085, United States
2 - Thermo Fisher Scientific, 1228 Titan Way, Sunnyvale, CA, 94085, United States

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. Extractions at high temperatures and pressures allow faster extraction of analytes relative to conventional solid-liquid or liquid-liquid based extraction techniques. Moreover, parallel extraction offer the advantage of faster operation. Gas assisted extraction is a method of extracting an analyte from a sample that uses a mixture of a liquid solvent and a gas through the sample container. Gas assisted extraction allows the extraction to proceed at low flow of solvent continuously.

In this presentation, we discuss a new parallel extraction protocol for pursuing extractions in gas assisted extraction mode followed by quantitation for persistence organic pollutants (POP). 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.