Innovative reference material for improving the quality control in the sucroenergetic sector

Autor(es)

Martinez, Maria I. V. ^[1] ; Zeisler, Rolf ^[2] ; De Nadai Fernandes, Elisabete A. ^[1] ; Bacchi, Marcio A. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Nucl Energy Ctr Agr, Av Centenario 303, BR-13416000 Piracicaba, SP - Brazil

^[2] NIST, 100 Bur Dr, MS 6100, Gaithersburg, MD 20899 - USA

• Tipo de documento: Artigo Científico
• Fonte: ACCREDITATION AND QUALITY ASSURANCE; v. 23, n. 6, p. 329-336, DEC 2018.
• Citações Web of Science: 0

Resumo

Analytical techniques in the sucroenergetic sector can now for the first time be supported by an innovative matrix-matching reference material produced from sugarcane leaves. This will further enhance the validity of the measurement results and contribute significantly to the quality assurance of plant nutrition analysis. The candidate reference material obtained had a low residual moisture and appropriate particle size. Neutron activation analysis was used to determine the mass fraction of Al, Br, Ca, Cl, Ce, Co, Cs, Cu, Fe, Hf, K, La, Mg, Mn, Mo, Na, P, Rb, Sb, Sc, Sm, Sr, Th, V and Zn, and the Kjeldahl method for N. Statistical techniques were applied to evaluate minimum sample mass and within-bottle homogeneity (ANOVA, Tukey test and PCA) and between-bottles homogeneity (ANOVA). It is demonstrated in this paper that the material is homogeneous using 50mg mass sample for most chemical elements. However, sample masses of 200 mg or greater are required for Co, Na, Sb and V. (AU)

• Processo FAPESP: 14/06494-8 - Caracterização química de um material de referência candidato de folhas de cana-de-açúcar usando PGAA com ênfase em n, si, s, b e mo
• Beneficiário: Maria Isabel Vega Martinez
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado