Using gc-ms and hplc-ms/ms for analyzing impurities in triethylene glycol accumulating in the process of natural gas drying by M. N. Usachev, Yu. A. Efimova, T. V. Manuylova

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DETERMINATION OF THE STRUCTURE OF IMPURITIES IN TRIETHYLENE GLYCOL BY NMR AND HPLC-MS/MS OF HIGH RESOLUTION by M. N. Usachev, Yu. A. Efimova, N. K. Zaitsev

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Biological functions of cobalt and its toxicology and detection in anti-doping control by I. V. Pronina, E. S. Mochalova, Yu. A. Efimova, P. V. Postnikov

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IDENTIFICATION OF EPO-Fс FUSION PROTEIN BY MEANS OF POLYACRYLAMIDE GEL-ELECTROPHORESIS WITH ISOELECTROFOCUSING (IEF-PAGE)AND IN PRESENCE OF SODIUM DODECYLSULPHATE (SDS-PAGE)/ LAURO... by P. V. Postnikov, G. I. Krotov, Yu. A. Efimova, M. A. Dikunets

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APPROACHES TO CHORIONIC GONADOTROPIN QUANTITATIVE DETERMINATION IN ANTI-DOPING CONTROL by I. O. Zvereva, N. B. Savelieva, P. V. Postnikov, Yu. A. Efimova, M. A. Dikunets

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Validation of a method for the quantitative determination of narcotic and psychotropic substances in urine by UHPLC–MS/MS by N. B. Savelieva, G. V. Ishutenko, A. V. Polosin, F. V. Radus, D. S. Polyansky, S. A. Kurbatkin, Yu. A. Efimova, P. V. Postnikov

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Experimental study of urinary stones by Yu. G. Alyayev, Yu. A. Efimova, G. M. Kuz’micheva, I. Yu. Lovchinovskiy, A. S. Olshanskaya, E. V. Filosofova, L. M. Rapoport, V. I. Rudenko

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