RP-HPLC Determination of Bromo-cyano-methybenzene in Soil

RP-HPLC was applied to the determination of bromo-cyano-methybenzene in soil.The sample was treated by Soxhlet extraction with dichloromethane as extraction solvent for 6 h.The extract obtained was separated on ODS-C18 column (150 mm×6mm,5 μm) with a mixture of methanol-water (70+30) as mobile phase and the content of bromo-cyano-methybenzene was determined at the wavelength of 237 nm.Linear relationship between the values of peak area and mass concentration of bromo-cyano-methybenzene was obtained in the range of 0.6-10.0 mg·L-1.The values of recovery found by standard addition method were in the range of 85.0%-95.7%,and values of RSD′s (n=6) were in the range of 1.9%-10.3%.