It could be made by aspirating stomach contents and regulating the pH.
Gastric contents or continuous pH graduating with a terminal of pH monitoring with the gastric aspiration system is a constant and reproducible process. For victims with a nasogastric tube in position, antacid dosage may be titrated. By aspirating abdomen contents, discovering pH, and then fixing the dose on the specific pH. Absolute determination of gastric pH cannot be discovered from the buccal mucosa or urine of an individual.