Application of Focused Ultrasound-Assisted Extraction for the Quantification of Persistent Organic Pollutions in Liver Tissue of Giant Toad (Rhinella marina)

作者：Flores Ramirez R^*; Espinosa Reyes G; Cilia Lopez V G; Gonzalez Mille D J; Rodriguez Aguilar M; Diaz de Len Martinez L; Diaz Barriga F

来源：Bulletin of Environmental Contamination and Toxicology, 2017, 98(2): 204-211.

DOI：10.1007/s00128-016-2009-y

• Persistent Organic Pollutants
• Focused ultrasound extraction
• Biomonitor
• Mexico

A simple and rapid focused ultrasound extraction method was developed for the determination of Persistent Organic Pollutants (POPs) in liver tissue obtained of giant toad (Rhinella marina) using a gas chromatography coupled to a mass detector with electron impact ionization. The performed method for POPs, was validated in fortified matrix, showing linearity from the LOQ up to 100 ng/mL; LODs and LOQs for each compound were between 1.7 and 4.8 and 3.5-7.5 ng/mL, respectively. Recovery rates were among 79%-116% for POPs determined. Finally, the method was applied in liver samples of giant toads found in a malarial area in Mexico. The sensitivity of the proposed method was good enough to ensure reliable determination of target analytes at concentration levels commonly found in this kind of samples.

• 出版日期2017-2