Standardization and determination of mercury (Hg) in bee pollen of Brassica napus. L. L.García MY; Di Bernardo ML; Vit P, Rondón C; González I; Saavedra AR; Zago K.; Uzcategui; NA   [ Abstract ]
   
Study of stability and determination of metabolites of cocaine and marijuana in biological fluids. Morales Alexis; Di Bernardo María L; Luna José; García María Y; Yánez Carlos; Mejías Richart; Hernández Yajaira; Gualtieri María; Rodríguez Lester; Peña Jesús [ Abstract ]