[1]
H. H. Ulbrich, S. Andrade, V. A. Janasi, and R. S. Cardenete, “QUALITY CONTROL OF ANALYTICAL ROUTINES FOR WHOLE-ROCK GEOCHEMISTRY: I: PARTICIPATION OF THE CHEMISTRY AND ICP-OES LABORATORY, INSTITUTE OF GEOSCIENCES, UNIVERSITY OF SÃO PAULO, IN THE INTERNATIONAL PROFICIENCY ROUNDS GEOPT 2, 3 AND 4”, Geochim. Bras., vol. 16, no. 2, Dec. 2011.