Evaluation of quantitative synchrotron radiation micro-X-ray fluorescence in rice grain.

ABSTRACT: Concentrations of nutrients and contaminants in rice grain affect human health, specifically through the localization and chemical form of elements. Methods to spatially quantify the concentration and speciation of elements are needed to protect human health and characterize elemental homeostasis in plants. Here, an evaluation was carried out using quantitative synchrotron radiation microprobe X-ray fluorescence (SR-µXRF) imaging by comparing average rice grain concentrations of As, Cu, K, Mn, P, S and Zn measured with rice grain concentrations from acid digestion and ICP-MS analysis for 50 grain samples. Better agreement was found between the two methods for high-Z elements. Regression fits between the two methods allowed quantitative concentration maps of the measured elements. These map

SUBMITTER: Limmer MA 

PROVIDER: S-EPMC10000813 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature