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Dyes from different chemical categories are frequent in effluents from textile production, food processing and paper mills. Dyes are also very frequently used in biology, biochemistry, histology and microbiology laboratory studies. Congo red (C32H22N6Na2O6S2) is a water-soluble secondary diazo dye. Hematoxylin (C16H14O6) is a natural dye, extracted from the heartwood of the tree Haematoxylum campechianum. Safranine (C20H19ClN4) is used as a biological stain commonly used as a counterstain in the Gram stain procedure and in histological studies. Neutral red (C15H17ClN4), is a vital stain used in many staining methods.
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Citação
Barros, P., & Costa, J. (2015). Ecotoxicity of Congo red, hematoxylin, safranine and neutral red dyes in green algae and cyanobacteria. In R. A. Silva, P. Baylina, F. Q. Vieira, C. Barrias, M. Rubim, T. Coelho, C. Prudêncio, & Â. Jesus (Eds.), II Congresso Internacional da Saúde Gaia Porto: Livro de Resumos (1st ed., Vol. 1, pp. 116). Escola Superior de Tecnologia da Saúde do Instituto Politécnico do Porto.
Editora
Escola Superior de Tecnologia da Saúde do Instituto Politécnico do Porto