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. 2025 Jan 29;13(2):60. doi: 10.3390/dj13020060

Figure 2.

Figure 2

Tracings of representative standard (top) and sample (bottom) chromatograms. Representative sample chromatograms were chosen to illustrate the range of total GSH concentrations in OKF6/TERT-2 cells treated with E-liquids ± flavors. The blank contained 0.00 µM GSH. Peaks were integrated and quantified fluorometrically using excitation and emission wavelengths set at 350 and 420, respectively. All total GSH samples analyzed achieved levels above the limit of detection (LOD) and limit of quantitation (LOQ) and ranged from 0.033 and 22.961 µM.