Simultaneous determination and stability profiling of diphenhydramine and diazepam in human urine using a validated RP-HPLC-QTOF-MS method

Determination of the stability of drug analytes in biological samples and the development of reliable analytical methods for their detection are crucial for accurate analyses. For this research, diphenhydramine (DPH) and diazepam (DZP) stability profiles were investigated following the revalidation...

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