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. 2014 Nov 12;5:431. doi: 10.3389/fphys.2014.00431

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Copyright © 2014 Sitdikova, Fuchs, Kainz, Weiger and Hermann.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Determination of H₂S concentrations and loss of H₂S by evaporation. (A) Plot of the H₂S concentrations derived from NaHS donor vs. H₂S sensor current (nA). The relationship is linear up to about 50 μM H₂S, respectively 226 μM NaHS (stippled line fitted to data points). (B) Measurement of H₂S evaporation from physiological bath solution. The plot shows sensor current readings vs. time. One hundred percent indicates the beginning of the measurement which started immediately after preparation of the solution.