1) Qualitative confirmation procedure for ephedrines as acetonide derivatives in doping urine samples by gas chromatography/electron ionization mass spectrometry
Rodny Montes de Oca Porto, Arístides Rosado Pérez, Margarita Teresa Correa Vidal, Mario Granda Fraga
Rapid Communications in Mass Spectrometry
Volume 23, Issue 2, pages 249–257, 30 January 2009
- DOI:
http://dx.doi.org/10.1002/rcm.3872
B. M. El-Haj, A. M. Al-Amri, M. H. Hassana, H. S. Ali and R. K. Bin Khadem
Forensic Science International
Volume 135, Issue 1, 29 July 2003, Pages 16-26
- DOI:
http://dx.doi.org/10.1016/S0379-0738(03)00101-4