Fig. 4.

Relative efficiency of HSOH and HOSOH generation in reactions of H₂S with various oxidants, based on the SIC peak areas for trapped species 4 and 21. All reactions done in the ratio of 1 mM H₂S, 1.2 mM oxidant in iP buffer pH 7, trapped by addition of 5 mM bolus of iodoacetamide and dimedone after 5 mins. The peak heights and error bars derive from an average of three experiments.