Extraction Efficiencies of Organophosphorus Pesticides Spiked in Fish Tissues by Supercritical Carbon Dioxide

초임계 이산화탄소에 의한 어류조직 중 유기인계 농약의 첨가회수율

  • Lim, Sang-Bin (Department of Food Science and Technology, Cheju National University) ;
  • Jwa, Mi-Kyung (Department of Food Science and Technology, Cheju National University)
  • Published : 1998.10.01

Abstract

Fish tissues were spiked with organophosphorus pesticides (OPPs), mixed with a celite as a drying agent, and dynamically extracted with pure $CO_2$ or modified $CO_2$ for 10 min at different extraction temperatures, pressures and $CO_2$ flow rates. Recoveries of OPPs spiked in jacopever increased with the decrease of extraction temperature and pressure, and decreased with the increase of $CO_2$ flow rates. Modified $CO_2$ extractions with 10% methylene chloride showed a slight increase in the recoveries over pure $CO_2$ extraction. Quantity of fish tissues had great effect on their extraction efficiencies. Recoveries of OPPs were $66.7{\sim}86.3%$ for jacopever, $56.2{\sim}79.2%$ for yellow tail, $57.6{\sim}77.8%$ for blanquillo, $84.2{\sim}96.3%$ for sardine, $74.6{\sim}83.6%$ for mackerel. Application of supercritical carbon dioxide extraction offers an attractive alternative to the use of organic solvents for extraction of pesticide residues from fish tissues.