Matos, Geraldo Domingues, César Ricardo Teixeira Tarley, Sérgio Luis Costa Ferreira, and Marco Aurélio Zezzi Arruda. “Use of Experimental Design in the Optimisation of a Solid Phase Preconcentration System for Cobalt Determination by GFAAS”. Eclética Química 30, no. 1 (March 28, 2005): 65–74. Accessed September 28, 2024. https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/453.