Screening the capability of vibrational spectroscopic techniques for simultaneous quantification of vitamins B1, B6, and B12 in a powder blend, Apostol, Todorovski, Geskovski Nikola, Petreska Marina, Deconinck Eric, Hervé Rebière, Nakov Natalija, Brezovska Katerina, and Acevska Jelena , Vibrational Spectroscopy, Jan-07-2024, Volume 133, (2024)