New Method of Synthesis of Calix-4-arenes as Analytical Reagent for Spectrophotometric Determination of Iron (III). Al Mustansiriyah Journal of Pharmaceutical Sciences, [S. l.], v. 10, n. 2, p. 19–33, 2011. DOI: 10.32947/ajps.v10i2.293. Disponível em: https://ajps.uomustansiriyah.edu.iq/index.php/AJPS/article/view/293. Acesso em: 20 apr. 2025.