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. 2021 Sep 26;22(19):10356. doi: 10.3390/ijms221910356

Figure 17.

Figure 17

The absorption spectra of GS-NO formed after adding glutathione to the solution of decomposed M-DNIC-H2O. Curves 2 and 3—GS-NO spectra registered immediately, and in 5 min after adding glutathione (with pH = 1–2) to the solution of M-DNIC-H2O decomposed in 20 min after pumping NO out of the Thunberg apparatus. Curves 1 and 1a—the absorption spectra of GS-NO formed in water due to the presence of some NO2 in gaseous NO. Water was treated with NO without adding divalent iron (control experiments) [87]. (With permission).