Development of new metrology methods for determining major elements in solid biofuels ash and establishment of results’ traceability

In this study, new analytical procedures: microwave plasma-atomic emission spectrometry and wavelength dispersive—X-ray fluorescence for the determination of major elements in ash generated by combustion of solid biofuels such as wood chips and straw were developed and validated. The study also describes the establishment of results’ traceability and comparison of developed methods. The aim of this study was to test reliability of measurement results for total major element content in ash by means of non-destructive X-ray fluorescence method that can be used directly on site. The study was entirely performed within the implementation of the EMPIR 19ENG09 BIOFMET New metrological methods for biofuel materials analysis project.