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A multi‐analyte screening method for the quantification of 50 acidic/neutral drugs in human plasma based on on‐line solid‐phase extraction (SPE)–HPLC with photodiode array detection (DAD) was developed, validated and applied for clinical investigation. Acetone and methanol for protein precipitation, three different SPE materials (two electro‐neutral, one strong anion‐exchange, one weak cation‐exchange)...
An automated multi‐analyte screening method for the identification and quantification of 92 drugs and metabolites based on on‐line solid‐phase extraction–high‐performance liquid chromatography–diode array detection technique was developed and successfully validated. In addition, a database with 870 entries including UV‐spectra, relative/retention times and response factors of toxicologically relevant...
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