CEN Webinars: Stronger Bonds
Improving Dioxin Extraction Using In-Cell Pressurized Liquid Extraction: A Case Study for Solid Sample Matrices
Thursday December 12th 2013
8:00a.m. PST / 11:00a.m. EST / 16:00 GMT
Sascha Usenko,
Assistant Professor of Environmental Product Manager — Dionex ASE Science,
Baylor University
Aaron Kettle,
Product Manager,
Dionex ASE Systems,
Thermo Fisher Scientific
Linda Wang,
Senior Editor, C&EN
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In recent years, there has been an increasing demand for high-throughput analytical methods capable of quantifying organic contaminants in biological or other solid matrices. One approach to increasing the throughput is to reduce or eliminate the bottlenecks associated with sample preparation.

Polychlorodibenzop-dioxins, polychlorodibenzofurans (PCDD/Fs and dioxin-like polychlorobiphenyls (dl-PCBs) are extracted from fish tissue composites using a Thermo Scientific™ Dionex™ ASE™ Accelerated Solvent Extractor system that layers alumina, florisil, silica gel, celite, and carbopack into the extraction cell. This method offers significant improvements over more tradition methods (e.g. U.S. EPA Method 1613) by reducing the labor, solvent consumption, and laboratory space required for the routine analysis of these organic contaminants. This advanced PLE method improves analyte recoveries and reduces the time associated with sample preparation to less than two hours.

In this web seminar, we discuss a novel high-throughput advanced pressurized liquid extraction (PLE) technique that incorporates multiple cleanup techniques into a single automated procedure.


- Introduce in-cell PLE

- How to combine the extraction technique with one or all of the necessary cleanup techniques in a single automated step

- How to maximize your Dionex ASE system

- How to develop high-throughput analytical methods capable of quantitation of organic contaminants in biological or other solid matrices

  • • Academic or governmental research groups that routine measuring organic contaminants in biological or solid matrices
  • • Laboratories tasked with the monitoring organic contaminants for larger-scale and time sensitive projects such as environmental disasters
  • • Scientist in fields associated with environmental chemistry, toxicology, medicine, food safety, drug discovery, and criminal forensics
  • • Scientist that use or have access to a Dionex ASE system
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