[1] Univ Fed Santa Maria, Curso Posgrad Ciencias Farmaceut, BR-97119900 Santa Maria, RS, Brazil
[2] Univ Fed Santa Maria, Dept Anal Clin & Toxicol, BR-97119900 Santa Maria, RS, Brazil
[3] Univ Fed Santa Maria, Curso Farm, BR-97119900 Santa Maria, RS, Brazil
[4] Univ Fed Vale do Sao Francisco, Curso Pos Grad Ciencia Anim, Petrolina, PE, Brazil