Solid-phase extraction based on magnetic core-shell silica nanoparticles coupled with gas chromatography-mass spectrometry for the determination of low concentration pesticides in aqueous samples

2012 ◽  
Vol 35 (18) ◽  
pp. 2430-2437 ◽  
Author(s):  
Zhichao Xiong ◽  
Lingyi Zhang ◽  
Runsheng Zhang ◽  
Yurong Zhang ◽  
Jianhu Chen ◽  
...  
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