The methylhippuric acid test measures the concentration of this metabolite in urine, which is crucial for assessing xylene exposure. We use High-Performance Liquid Chromatography (HPLC) to ensure accurate and reliable results.
End-of-shift urine, 50 mL aliquot. Keep the sample refrigerated at 4°C or frozen at -20°C. Do not consume alcoholic beverages 5 days before collection. Indicate if you are taking medication.
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