Which test is used to identify the metabolite of aspirin?

The Salicylate Test is specifically designed to identify the presence of salicylates, which are the metabolites of aspirin. When aspirin is metabolized in the body, it is converted into salicylic acid, which is the active form responsible for the drug's therapeutic effects as well as its potential toxicity. This test typically involves methods like immunoassays or colorimetric tests to detect salicylate levels in biological samples.

The other tests mentioned do not specifically identify aspirin or its metabolites. The Acetaminophen Test targets acetaminophen, which is a different drug altogether. The Fujiwara Test is used for detecting arsenic in biological specimens, and the Diphenylcarbazone Test is not relevant to aspirin metabolism but is instead used in certain chemical analyses, such as detecting mercury. Thus, the Salicylate Test is the appropriate method for identifying the metabolite of aspirin due to its specific focus on salicylic acid and other salicylate derivatives.