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Supercritical fluid extraction and high performance liquid chromatographic determination of benzopyrans and phloroglucinol derivative in Hypericum polyanthemum
Faculdade de Engenharia, Departamento de Engenharia Química, Pontifícia Universidade Católica do Rio Grande do Sul. Av. Ipiranga, 6681-Prédio 30-Sala 277, 90619.900 Porto Alegre, RS, Brazil
Faculdade de Engenharia, Departamento de Engenharia Química, Pontifícia Universidade Católica do Rio Grande do Sul. Av. Ipiranga, 6681-Prédio 30-Sala 277, 90619.900 Porto Alegre, RS, Brazil
Faculdade de Engenharia, Departamento de Engenharia Química, Pontifícia Universidade Católica do Rio Grande do Sul. Av. Ipiranga, 6681-Prédio 30-Sala 277, 90619.900 Porto Alegre, RS, Brazil