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he present studies contain the results of infrared spectra over 400-4000 cm-1 range of ashes from plants such as: field horsetail (equisetum arvense), pigweed (chenopodium alba), stalked boletus (leccinum testaceoscarbum). those plants were groving in sandy barren weak acid soil in the region without industry in Poland near the Baltic Sea. The absorptionbands correspond to a definite vibrations of...
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