Determination of dextromethorphan in human plasma using pipette tip solid-phase extraction and gas chromatography–mass spectrometry

2011 ◽  
Vol 401 (7) ◽  
pp. 2215-2223 ◽  
Author(s):  
Chika Hasegawa ◽  
Takeshi Kumazawa ◽  
Seisaku Uchigasaki ◽  
Xiao-Pen Lee ◽  
Keizo Sato ◽  
...  
Talanta ◽  
2006 ◽  
Vol 70 (2) ◽  
pp. 474-478 ◽  
Author(s):  
Takeshi Kumazawa ◽  
Chika Hasegawa ◽  
Xiao-Pen Lee ◽  
Akemi Marumo ◽  
Natsuko Shimmen ◽  
...  

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