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The pH of dilute aqueous sulfuric acid solutions in the concentration range between 20 and 200μmoldm −3 has been accurately determined by use of glass combination electrodes, in which the reference electrode is equipped with an ionic liquid salt bridge (ILSB) made of gelled tributyl (2-methoxyethyl) phosphonium bis(pentafluoroethanesulfonyl)amide (TBMOEPC 2 C 2 N). Experimental...
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