Determination of sulfate in algal polysaccharide samples: a step-by-step protocol using microplate reader. Ocean and Coastal Research, [S. l.], v. 69, 2022. DOI: 10.1590/2675-2824069.21-010pbt. Disponível em: https://journals.usp.br/ocr/article/view/199407.. Acesso em: 9 apr. 2025.