Preparations for measuring gastric pH value and method of measuring gastric pH value by using the same

摘要

The present invention provides a preparation for easily and non-invasively measuring gastric pH, for example, a preparation for measuring gastric pH using the expired air, and a method for measuring gastric pH using the preparation. The preparation of the present invention can be produced by covering a composition containing a compound labeled with an isotope (13C, 14C, 15N, or 18O), with a pH-dependent soluble base. IMAGE