Combined microextraction by packed sorbent and high-performance liquid chromatography–ultraviolet detection for rapid analysis of ractopamine in porcine muscle and urine samples

2014 ◽  
Vol 145 ◽  
pp. 789-795 ◽  
Author(s):  
Wei Du ◽  
Gang Zhao ◽  
Qiang Fu ◽  
Min Sun ◽  
Huiyan Zhou ◽  
...  
2007 ◽  
Vol 177 (4S) ◽  
pp. 295-295
Author(s):  
Michael Mullerad ◽  
Haleem J. Issaq ◽  
Alexander Kravtsov ◽  
Timothy Waybright ◽  
Brian Luke ◽  
...  

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