Risma Eka Cahyani, Aditya. Validasi Metode Spektrofotometri UV-Vis untuk Analisis Octyl Methoxycinnamate (OMC) pada Sampel Powder Tabir Surya.: Validation of UV-Vis Spectrophotometric Method for the Analysis of Octyl Methoxycinnamate (OMC) in Sunscreen Powder Samples. jff. 2026;4(1):55-66. doi:10.35760/jff.2026.v4i1.106