Figure 8: Variation of diamide induced absorbance during 15 min reacting with GSH (100 μmol/L) dissolved in 0.1 mol/L phosphate buffer (pH 7.5). (a) Only diamide (90 μmol/L); (b) Only GSH; (c) diamide (6 μmol/L) plus GSH; (d) diamide (30 μmol/L) plus GSH; (e) diamide (60 μmol/L) plus GSH; (f) diamide (90 μmol/L) plus GSH.