METHOD FOR QUANTITATIVE DETERMINATION OF INORGANIC ELEMENTS IN BIOLOGICAL SUBSTRATES BY MEANS OF X-RAY FLUORESCENT ANALYSIS

摘要

Method for quantitative determination of inorganic elements in biological substrates by means of X-ray fluorescent analysis includes sampling biological substrates, preparation of samples for analysis, drying of investigation material, ashing of biological material, measurement and calculation of concentration with account of intensity of fluorescent radiation. One brings in internal standard as element of gallium of germanium in concentration 0.1-1 mg/g applied to silicon dioxide.