Ultrasound-assisted dispersive liquid-liquid microextraction combined with gas chromatography-mass spectrometry in negative chemical ionization mode for the determination of polybrominated diphenyl ethers in water

2013 ◽  
Vol 36 (7) ◽  
pp. 1263-1269 ◽  
Author(s):  
Qian Zhang ◽  
Tao Liang ◽  
Lili Guan
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