{TAIL ~ An electrochemical gaseous measurement cell} includes a housing with an anode and a cathode arranged in {HEAD ~ spaced locations} in an acid electrolyte for galvanic measurement of gases which comprises an aqueous solution of an organic acid containing a polyfunctional groups suitable to yield protons during the measurement 
{ TAIL ~ An electrochemical gaseous measurement cell } includes a housing with an anode and a cathode arranged in { HEAD ~ spaced locations } in an acid electrolyte for galvanic measurement of gases which comprises an aqueous solution of an organic acid containing a polyfunctional groups suitable to yield protons during the measurement
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