Gas chromatographic/mass spectrometric determination of carbon isotope composition in unpurified samples: Methamphetamine example

Rapid Solid-phase Extraction/Derivatizat

Rapid Solid-phase Extraction/Derivatization System for Sample Preparation and Gas Chromatographic/Mass Spectrometric Determination of Drugs in Human Urine

✍ Soledad Cárdenas; Mercedes Gallego; Miguel Valcárcel 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 216 KB 👁 2 views

A novel automatic system has been developed for the rapid solid-extraction and derivatization of different drugs and their metabolites from urine, prior to further analysis. Manual injection of underivatized/derivatized drugs in a GC/MS system, in which the quadrupole mass filter was operated conven