L Glutathione vs. oxidized vs. Reduced Glutathione The optimised method of HPLC analysis of glutathione allows to determine the degree of oxidative stress in plant cell culture ScienceDirect PDF) Assay for quantitative determination of glutathione and glutathione disulfide levels using enzymatic recycling method A locally activatable sensor for robust quantification of organellar glutathione Nature Chemistry Glutathione Quantification GSSG GSH Quantification Kit Oxidized Reduced Glutathione Assay Dojindo Glutathione Assay (Colorimetric)