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Soft ionization mass spectrometry for studying desorption of bioactive compounds from a shungite surface

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Abstract

Ionized products of desorption of biologically active amino compounds (1,1-dimethylhydrazine, diglycine, tyrosine, and tryptophan) from the surface of a modified mineral (shungite-III, Karelia) have been investigated by laser desorption/ionization mass spectrometry methods (MALDI and SALDI). The composition of the ionized products of laser desorption of amino acids from the surface of nanodispersed shungite is almost independent of carbon content in shungite. The comparative analysis of ionized organic compounds desorbed from the surfaces of shungite and carbon black has led to the suggestion that the decomposition and surface transformation of 1,1-dimethylhydrazine molecules mainly occur on the inorganic components of shungite.

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Correspondence to A. K. Buryak.

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Original Russian Text © K.E. Polunin, I.S. Goncharova, A.V. Ul’yanov, I.A. Polunina, A.K. Buryak, 2017, published in Kolloidnyi Zhurnal, 2017, Vol. 79, No. 2, pp. 198–205.

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Polunin, K.E., Goncharova, I.S., Ul’yanov, A.V. et al. Soft ionization mass spectrometry for studying desorption of bioactive compounds from a shungite surface. Colloid J 79, 250–257 (2017). https://doi.org/10.1134/S1061933X17020090

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  • DOI: https://doi.org/10.1134/S1061933X17020090

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