Simultaneous determination of four phthalate esters in water samples using ultrasound-assisted dispersive liquid-liquid microextraction coupled with high performance liquid chromatography

2014 ◽  
Vol 31 (2) ◽  
pp. 155-161 ◽  
Author(s):  
Yanling MA ◽  
Lingxin CHEN ◽  
Yangjun DING ◽  
Yongfei MING
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