Research Article

A Validated Method for the Simultaneous Determination of Methamphetamine and 3,4-Methylenedioxy-N-methamphetamine in Blood-Based Liquid Chromatography-Tandem Mass Spectrometry

Figure 4

The specificity of the MDMA analysis by HPLC-MS/MS. (a) The quantification ion (194 > 163) chromatograms for blank matrix (dark blue) and spiked 0.3 μg/L MDMA sample (red); (b) The confirmation ion (194 > 105) chromatograms for blank matrix (green) and spiked 0.3 μg/L MDMA sample (yellow).
(a)
(b)