On-line solid-phase extraction combined with liquid chromatography–tandem mass spectrometry for high throughput analysis of 11-nor-Δ9-tetrahydrocannabinol-9-carboxylic acid in urine

2009 ◽  
Vol 877 (22) ◽  
pp. 2153-2157 ◽  
Author(s):  
María del Mar Ramírez Fernández ◽  
Sarah M.R. Wille ◽  
Nele Samyn ◽  
Michelle Wood ◽  
Manuel López-Rivadulla ◽  
...  
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