Rapid Quantification of Oxidized and Reduced Forms of Glutathione Using Ortho phthalaldehyde in Cultured Mammalian Cells In Vitro Full article: Comparison of three methods for in vivo quantification of glutathione in tissues of hypertensive rats Machine learning driven sensor array for predictive detection of glutathione ScienceDirect Determination of l glutathione by spot test and spectrophotometric methods based on its interaction with phenazine Analytical Methods (RSC Publishing)