I want to seek the opinions of experts in the field of environmental science. I intend to determine elemental contents of some freeze dried plant samples collected after an experiment. Since I want a non destructive method of determination of these elements, mostly transition elements. I am being sceptical about the use of XRF because I have been used to the use of conventional method of total digestion and analysis by either A AS or ICP MS. So, I want to hear opinion of people that have used XRF concerning the reliability and reproducibility of results. Is it better than normal conventional element analysis and how reliable are the results from XRF? Thank you all

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