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

초임계이산화탄소에 의한 어류조직 중 유기염소계 농약의 추출수율

  • Lim, Sang-Bin (Department of Food Science and Technology, Cheju National University) ;
  • Jwa, Mi-Kyung (Department of Food Science and Technology, Cheju National University) ;
  • Kang, Soon-Bae (Institute of Health and Environment, Cheju-do Provincial Government)
  • Published : 1996.06.30

Abstract

A simple, fast, inexpensive method hal been developed to extract organochlorine pesticide spiked in fish tissues by supercritical carbon dioxide. Following static supercritical fluid extraction (SFE), pesticides are collected by rapidly depressurizing the carbon dioxide effluent through a 0.79 mm i.d. metering valve into a capped screw-top tube. Percent recovers of standard organochlorine pesticides mixture (SOPM) increased with the decrease of the extraction temperature at 103 bar. Maximum average percent recovery of SOPM was 98% at $40^{\circ}C/172\;bar$ Average recoveries of SOPM spiked in Pacific cod, flatfish and common squid were 85,74,and 83% respectively at $40^{\circ}C/172\;bar$ Application of supercritical carbon dioxide ectraction offers and attractive alternative to the use of organic solvents for extraction of organochlorine pesticides from fish tissues.

Keywords

supercritical carbon dioxide extraction;organochlorine pesticide residues;fish tissues