A TECHNIQUE FOR DETECTING HELICOBACTER PYLORI

摘要

A technique for analyzing a test sample for presence of Helicobacter pylori by determining an extent of ammonia present in the test sample is presented. The test sample includes chloride ions. A first electrode and a second electrode of a Helicobacter pylori sensor are contacted with the test sample. At least the first electrode includes silver. Subsequently, a voltage is applied, for a first period of time, across the first and the second electrodes such that at least a part of the silver in the first electrode is converted to silver chloride. A current flowing across the first and the second electrodes is measured, for a second period of time. The second period of time at least partially overlaps with the first period of time. Finally, the extent of ammonia present in the test sample is calculated from the current flowing across the first and the second electrodes.