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

Author(s)

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

Affiliation

^[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

• Document type: Journal article
• Source: ACCREDITATION AND QUALITY ASSURANCE; v. 23, n. 6, p. 329-336, DEC 2018.
• Web of Science Citations: 0

Abstract

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)

• FAPESP's process: 14/06494-8 - Chemical characterization of a candidate reference material of sugarcane leaves using PGAA with emphasis on n, Si, s, b and mo
• Grantee: Maria Isabel Vega Martinez
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate