DETERMINATION OF PHENOLIC COMPOUNDS AND WATER-SOLUBLE VITAMINS IN THE EXTRACT OF A POPLAR (POPULUS ALBA) AND WILLOW (SALIX) MIXTURE BY HPLC METHOD AND EVALUATION OF THEIR BIOLOGICAL SIGNIFICANCE. Eureka Journal of Physical and Chemical Research, [S. l.], v. 2, n. 1, p. 27–39, 2026. Disponível em: https://eurekaoa.com/index.php/1/article/view/265. Acesso em: 4 apr. 2026.