FIG. 4.
Kinetics of H2S disappearance in the presence of murine tissue homogenates. The kinetics of H2S disappearance was monitored at 25°C in a total volume of 20 ml containing 500 μl murine liver (A), kidney (B), and brain (C) homogenates, 10 ml of H2S (40 ppm) in nitrogen and 9.5 ml of nitrogen (filled symbols) or air (open symbols). With the liver samples, the kinetics of H2S disappearance was measured at pH 7.4 (circles) and pH 5.8 (triangles). The lines represent exponential fits to the experimental data sets. The data represent means±SD of 5–10 independent experiments.