Acidic, Basic, and Neutral Drug Screen of Hydrolyzed Urine Using Supported Liquid Extraction Prior to LC-MS/MS Analysis
contributed by Biotage |
Introduction
This application note describes the extraction of acidic, basic, and neutral drugs from urine for screening purposes using ISOLUTE® SLE+ supported liquid extraction plates prior to LC-MS/MS analysis.
ISOLUTE SLE+ Supported Liquid Extraction products offer an efficient alternative to traditional liquid-liquid extraction (LLE) for bioanalytical sample preparation, providing high analyte recoveries, no emulsion formation, and significantly reduced sample preparation time.
In this application note, ISOLUTE SLE+ is used to quickly screen a panel of drugs from a small amount of urine (100 μL). The limit of detection was determined for each analyte and was found to range from 5 ng/mL to 1.25 ng/mL. The application note describes this quick robust screening assay for the extraction of 32 different drugs from a hydrolyzed urine matrix.
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