Published online by Cambridge University Press: 12 June 2017
n-Pentane was used to extract 3-(m-trifluoromethylphenyl)-1,1-dimethylurea (fluometuron) from soil-water samples. The microgram quantity of fluometuron in the n-pentane was measured at a wavelength of 242 mμ with an ultraviolet spectrophotometer and this measurement related to the fluometuron concentration in the soil-water sample. No measurable interference was noted in the n-pentane after the extraction of fluometuron from the soil-water samples. The procedure was developed for extracting and quantitatively determining fluometuron in soil-water samples.