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9663152 
Journal Article 
Extraction of DBP and DEHP in reclaimed water by dispersive-solid phase extraction 
Zhang, Y; Hao, R; Xu, P; Xu, Z 
2016 
Huanjing Gongcheng Xuebao / Chinese Journal of Environmental Engineering
ISSN: 1673-9108 
Science Press 
10 
7 
3522-3528 
Chinese 
In order to make quantitative analyses of dibutyl phthalate (DBP) and di-2-ethylhexyl phthalate (DEHP) which are environmental hormones in reclaimed water, the extraction conditions in the pretreatment process of dispersive-solid phase extraction (DSPE) were investigated, and finally the pretreatment method was used for the analysis of real reclaimed water. The results showed that when the extractant (HC-C18) dosage of 0.20 g, eluent of 6 mL ethyl acetate, extraction time of 20 min, shaking speed of 200 r· min-1 and the extraction temperature of 50℃, the recoveries of DBP and DEHP were 96.91% and 101.82%, respectively. The calibration curves were linear in the range of 0.50 to 50.00 μg·L-1, and the correlation coefficients were 0.998 6 and 0.998 8, respectively, the detection limits were 0.05 and 0.008 μg·L-1, the recoveries of standard addition averaged at 96.58% and 97.23% and the RSDs of DBP and DEHP were 3.37% to 8.29% and 4.91% to 5.74% separately. Without the need of filtering water, this method can reduce the loss of the target compounds in the filtering process, shorten the pretreatment time, and can not cause extraction column blockage, it is suitable for the analysis of reclaimed water which has changeable water quality and high content of suspended substance. Ultimately, the accuracy and precision met the requirement of trace analysis by using DSPE-GC-MS for DBP and DEHP detection. © 2016, Science Press. All right reserved. 
Dispersive-solidphase extraction; Phthalate esters; Pretreatment method; Reclaimed water