Rapid drug-screening of clandestine tablets by MALDI-TOF mass spectrometry.
A novel method for the rapid screening of clandestine tablets for drugs by MALDI-TOF mass spectrometry is described. In this method, cetrimonium bromide (CTAB), a surfactant, is added to the conventional alpha-cyano-4-hydroxycinnamic acid (CHCA) matrix solution used in preparing the MALDI samples. This procedure allows very clean mass spectra to be collected for amphetamine, methamphetamine, 3,4-methylenedioxyamphetamine (MDA), 3,4-methylenedioxymethamphetamine (MDMA), caffeine, ketamine and tramadol. The method was used successfully in the rapid drug-screening of some actual clandestine tablets, which had been seized from the illicit market, and can serve as a good complementary method to GC/MS for use in forensic analysis.
Su
An-Kai
AK
Department of Chemistry, National Taiwan Normal University, 88 Sec. 4 Tingchow Road, Taipei, Taiwan.
Liu
Ju-Tsung
JT
Lin
Cheng-Huang
CH