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Updated: Aug 22, 2026

High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry
Published on: April 23, 2019
Surface-activated chemical ionization ion trap mass spectrometry in the analysis of amphetamines in diluted urine
Simone Cristoni1, Luigi Rossi Bernardi, Piermario Gerthoux
1University of Milan, Centre for Bio-molecular Interdisciplinary Studies and Industrial Applications (CISI), Via Fratelli Cervi 93, 20090 Segrate Milano, Italy. dtoycr@tin.it
Abstract:
A new ionization method, named surface-activated chemical ionization (SACI), was employed for the analysis of five amphetamines (3,4-methylenedioxyamphetamine (MDA), 3,4-methylenedioxymethamphetamine (MDMA), 3,4-methylenedioxyethylamphetamine (MDE), amphetamine and methamphetamine) by ion trap mass spectrometry. The results so obtained have been compared with those achieved by using atmospheric pressure chemical ionization (APCI) and electrospray ionization (ESI) using the same instrument, clearly showing that SACI is the most sensitive of the three. The limit of detection and linearity range for SACI were compared with those obtained using APCI and ESI, showing that the new SACI approach provides the best results for both criteria. SACI was used to analyze MDA, MDMA MDE, amphetamine and methamphetamine in four urine samples, and the quantitation results are compared with those achieved using ESI.
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