Measuring the bioavailability of organochlorine pesticides in water using triolein embedded cellulose acetate membrane
三油酸甘油脂-醋酸纤维素复合膜测定水中有机氯农药生物有效性

Three organochlorine pesticides(OCPs)-endrin,dieldrin,and p,p'-DDT-were used as target compounds to test the hypothesis that triolein embedded cellulose acetate membrane(TECAM) only extracts freely dissolved hydrophobic organic compounds(HOCs).The effect of dissolved organic carbon(DOC) on the bioavailability of the OCPs was also examined through accumulation study with TECAM and Japanese medaka(Oryzias latipes).Results showed that TECAM only extracted the freely dissolved HOCs and the presence of DOC in water reduced the availability of HOCs to both TECAM and Japanese medaka.The effect of DOC on the accumulation profiles of the three target compounds in TECAM and medaka was similar.Therefore,TECAM can be used to predict the effect of DOC on the bioavailability of HOCs in fish.