Validation of HPLC stability-indicating method for Vitamin C in semisolid pharmaceutical/cosmetic preparations with glutathione and sodium metabisulfite, as antioxidants - Maia, Adriana Moura; Baby, André Rolim; Yasaka, Wilson Junitiro; Suenaga, Eunice Mayumi; Kaneko, Telma Mary; Velasco, Maria Valéria Robles (Talanta, 2007)