| 摘要 |
<p>The invention relates to a composition for the detection of preformed urease to provide a diagnosis of gastrointestinal disorders which comprises (a) urea; (b) a bactericide; (c) a pH indicator which undergoes a colour change upon an increase of pH, at an effective concentration; and (d) water; wherein said composition has an acid pH of at least 5.0 and the pH of said composition is at least about one pH unit lower than the PKa of said indicator.</p> |
