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Y. A. Polyakova, I. A. Ananieva, E. N. Shapovalova, A. G. Majouga, O. A. Shpigun

Separation of water soluble vitamins on silica modified L-cysteine-stabilized gold nanoparticles by HPLC


Prepared silica functionalized with 3-aminopropyltriethoxysilane and L-cysteine-stabilized gold nanoparticles (SiO2NH2AuL-cysteine). The influence of the content of acetonitrile in the mobile phase and pH on the retention and separation selectivity 8 vitamins was studied. Chromatographic conditions allowing to separate mixtures of vitamins C, B3, B12, B5 and B1, B2, B6, B10 were suggested. The possibility of separating a mixture of vitamins C, B3, B12, B5 for 8 min, and mixtures of vitamins B1, B2, B6, B10 in 12 min. on the synthesized stationary phases SiO2NH2AuL-cysteine in isocratic elution was shown.
Key words: HPLC, modified silica, gold nanoparticles, L-cysteine, water soluble vitamins.
Moscow University Chemistry Bulletin.
2016, Vol. 57, No. 1, P. 24

Copyright (C) Chemistry Dept., Moscow State University, 2002
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