Characteristics of the behavior of the water-soluble fraction of oil in model experiments

In connection with the characteristics of the behavior of petroleum products in water, when conducting toxicological investigations, the highly sensitive radiotracer technique is used which permits judging the concentration of hydrocarbons based on radioactivity (RA) in a small volume of water. A method of labeling water-soluble components of oil with radioactive iodine-131 is discussed. The authors extracted the water-soluble fraction of crude oil (WSFO) with chloroform and labeled it with radioactive iodine-131, obtaining (/sup 131/I)WSFO, which was then introduced into a vessel with water and into the bottom sediments for conducting model experiments. The RA was determined sixfold. The dynamics of petroleum hydrocarbons in the water-WSFO system are discussed, as well as in the water-sediment-WSFO system and in the water-sediment-animals-WSFO system.