Determination of nitrogen-15 isotope fractionation in tropine: evaluation of extraction protocols for isotope ratio measurement by isotope ratio mass spectrometry

2009 ◽  
Vol 23 (24) ◽  
pp. 4031-4037 ◽  
Author(s):  
Roland Molinié ◽  
Renata A. Kwiecień ◽  
Virginie Silvestre ◽  
Richard J. Robins
The Analyst ◽  
1998 ◽  
Vol 123 (12) ◽  
pp. 2617-2620 ◽  
Author(s):  
Véronique Ferchaud ◽  
Bruno Le Bizec ◽  
Fabrice Monteau ◽  
François André

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