Open AccessEnergy-dispersive spectroscopy for the quantitative determination of the major chemical elements in milk
Author(s) -
Igor Lima de Paula,
Ísis Rodrigues Toledo Renhe,
Rodrigo Stephani,
Ítalo Tuler Perrone,
Antônio Fernandes de Carvalho,
Alan Frederick Wolfschoon Pombo
Publication year - 2021
Publication title -
research, society and development
Language(s) - English
Resource type - Journals
ISSN - 2525-3409
DOI - 10.33448/rsd-v10i10.18910
Subject(s) - analytical chemistry (journal) , raw milk , chemistry , x ray fluorescence , quantitative analysis (chemistry) , incineration , fluorescence spectrometry , raw material , coefficient of variation , milk products , mass spectrometry , whole milk , environmental chemistry , fluorescence , chromatography , food science , waste management , physics , organic chemistry , quantum mechanics , engineering
The present preliminary study aims at the rapid quantitative determination of the major chemical elements in the ashes of raw milk samples, using energy dispersive X-ray fluorescence spectrometry. The precision of the method was satisfactory (variation coefficient ≤ 5%). The mean values (in mmol·kg-1) obtained from the analysis of 32 raw milk samples showed good agreement with data from the Brazilian and international literature: K (26.1 ± 4.6), Ca (33.8 ± 3.7), P (28.4 ± 2.7), Na (21 ± 3.3) and Mg (4.7 ± 0.5). Residual Cl concentration (19.0 ± 3.3 mmol·kg-1) was lower than expected due to incineration losses. The results suggest a good application potential of the method for other dairy products.