CPC G01N 27/404 (2013.01) [G01N 27/30 (2013.01); G01N 27/413 (2013.01)] | 18 Claims |
1. An electrochemical oxygen sensor comprising:
a positive electrode;
a negative electrode; and
an electrolyte solution,
wherein the electrolyte solution comprises a chelating agent and ammonia,
wherein the electrolyte solution comprises citric acid as the chelating agent, and
wherein a concentration of the ammonia in the electrolyte solution is 0.01 mol/L or higher.
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