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An apparatus for generating and maintaining water solutions saturated with hydrophobic organic chemicals is described. The saturator replaces the reagent stock bottle and the organic solvents used in conventional diluters, and has ample capacity to dose large volumes of water necessary for long-term toxicology studies with aquatic organisms. The water in a constant-level reservoir is continuously saturated with the chemical by circulating the water through a bed of an inert substrate impregnated with the chemical under investigation.
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Veith et al. (1975) studied this question.
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