Marijuana, history of use, 218 window of detection, 219 Mass spectrometry (MS), computers, 52

coupling with separation techniques,

52-55 detectors, 52 hair analysis, calibration, 188, 191

extraction methods, 186, 187 instrumentation, 187 ionization, 187, 188 ion source and ionization techniques,

50, 51 mass analyzer, 51, 52 principles, 50

tandem mass spectrometry, 55 vacuum system, 52 MDMA, see

Methylenedioxymethamphetamine MECC, see Micellar electrokinetic capillary chromatography

Meconium, specimen drug testing, 23 Methamphetamine, hair levels of proven users, 193 Methylenedioxymethamphetamine (MDMA), Drugwipe® device testing, saliva, 170 sweat, 172, 173 history of use, 218 window of detection, 219 Micellar electrokinetic capillary chromatography (MECC), principles, 49 MS, see Mass spectrometry Multistix®, adulteration detection, 238

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