The article compares the product purity of fullerene C-60, synthesized in different
laboratories. The content of main product impurities was determined by liquid
chromatography, infrared spectroscopy and mass spectrometry. It is shown that only one
method of chromatographic analysis, the results of which are given in the certificates of
goods, is not enough for detecting detect impurities.
Keywords: fullerene C-60; product purity
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