ALCHAB, F. A. Methyl paraben detection in cosmetic products by synthesis of azo compounds using infrared spectroscopy. Tishreen University Journal -Medical Sciences Series, [S. l.], v. 41, n. 2, 2019. Disponível em: https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/8576. Acesso em: 4 may. 2024.