title: [Intragastric pH probe functioning in studies of solutions with nonuniform pH].
abstract: The goal of this work was to study the antimony electrode functioning in solution with nonuniform pH. Two research methods were developed. The first method was based on the use of the current-voltage curve of the pH probe. This method made it possible to study the dependence of the pH probe functioning on the contact patch size. The second method was based on experimental simulation of the pH probe contact with solutions with different pH. This method made it possible to study the dependence of the pH probe functioning on the gastric juice concentration. It was found that changes in sodium bicarbonate concentration had greater effect on the electrode functioning than changes in the gastric juice concentration.
authors.forename: D I
authors.initials: DI
authors.lastname: Nevskiĭ
authors.forename: A B
authors.initials: AB
authors.lastname: Rakitin
authors.forename: B V
authors.initials: BV
authors.lastname: Rakitin
mesh_terms: D000965:Antimony / Q000737:chemistry; D004566:Electrodes; D005745:Gastric Acidity Determination / Q000295:instrumentation*; D005750:Gastric Juice / Q000737:chemistry*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D017693:Sodium Bicarbonate / Q000737:chemistry; D012996:Solutions / Q000737:chemistry
chemical_list: D012996:Solutions; D017693:Sodium Bicarbonate; D000965:Antimony