Determination of vitamin D3 in vitamin D drops by high resolution sampling two-dimensional chromatography*
WU Jue, GUO Wei-bin, QIU Xiao-feng, ZHENG Shu-feng
Chinese Journal of Pharmaceutical Analysis . 2024, (7): 1169 -1175 .  DOI: 10.16155/j.0254-1793.2023-0741