Assay principle. Abbreviations: GSH, glutathione; GS R, glutathione Download Scientific Diagram Measurement of superoxide dismutase, catalase and glutathione peroxidase in cultured cells and tissue Nature Protocols Rapid Quantification of Oxidized and Reduced Forms of Glutathione Using Ortho phthalaldehyde in Cultured Mammalian Cells In Vitro Rapid and effective protocol to measure glutathione peroxidase activity Bulletin of the National Research Centre Springer Nature Link Rapid Quantification of Oxidized and Reduced Forms of Glutathione Using Ortho phthalaldehyde in Cultured Mammalian Cells In Vitro GSH Reactivity Assay Domainex