Measuring the Phthalates of Xiangjiang River Using Liquid-Liquid Extraction Gas Chromatography
Objective: To observe the phthalates pollution situation in water environment and design the liquid-liquid extraction gas chromatography method to measure phthalates in Xiangjiang River water. Methods: The water samples were collected from six monitor points of the Xiangjiang River’s Changsha period. After liquid-liquid extraction, gas chromatography was used to measure and analyze the phthalates pollution in this period of the river. Results: Dioctyl phthalate resin (DOP) and dibutyl phthalate (2- ethylhexyl) phthalate (DEHP) were detectable in all samples from six monitor points, the concentrations of DEHP were from 0.62-15.23μg/L, DOP were from 0.04-0.21μg/L. Conclusion: The optimum conditions for the extraction of phthalates are: 0.025ml dichloromethane as extraction solvent, centrifuge speed at 4000r/min, extraction time 20 minutes, and this method is appropriate for monitoring the phthalates pollution in water environment.
Riza Esa and Yanwen Wu
X. J. Zhu and Y. Y. Qiu, "Measuring the Phthalates of Xiangjiang River Using Liquid-Liquid Extraction Gas Chromatography", Advanced Materials Research, Vols. 301-303, pp. 752-755, 2011