. 2017 Mar 1;12:325–339. doi: 10.1016/j.redox.2017.02.021

Table 1.

H₂S (μM) released spontaneously (spont) upon dissolving 10 μM H₂S₂, H₂S₃ or H₂S₄ standards in normoxia and after subsequent addition of 1 mM DTT (+DTT).

	H₂S₂	H₂S₃	H₂S₄
H₂S (spont)	9.1 ±0.36*	5.9 ±0.51	5.7 ±0.62
+ DTT	3.3 ±1.12^a,b,	7.7 ±0.84^a,c	16.8 ±1.28^b,c
Total H₂S from polysulfide	12.4	13.6	22.5

Measured with amperometric H₂S sensor. Mean±SE; n =10–12 (H2S), 5–6 (DTT). * significantly different from either H₂S₃ or H₂S₄(p<0.001). a; significantly different from same letter at (p=0.015); b, c, significantly different from same letter at (p<0.001). +DTT corrected for H₂S released by DTT alone (3.9 μM).