dos Santos Brigido, Tatielle, Centro Universitário Estácio Unimeta, Brazil

• Scientia Naturalis Vol. 3 No. 5 (2021): - Articles
  Elementary identification of (copper, zinc, iron, rubidio) in the waste of the cupuaçu shells (theobrama grandiflorum) by x-ray fluoridation method
  Abstract  pdf (Português (Brasil))
• Scientia Naturalis Vol. 3 No. 1 (2021): - Articles
  Preliminary investigation of the chemical properties of cupuaçú waste (Theobroma grandiflorum) through the dispersive energy x-ray fluorescence spectrosctive technique
  Abstract  pdf (Português (Brasil))