Analyte Q1mass(amu) Q3mass(amu) DP (V) CE(V) CXP(V)

EP(V)

MDMA 194.1 105.1 23 35 5

5

Table 2: Optimized mass spectrometric parameters [31]. Q1 mass, parent ion m/z; Q3 mass, daughter ion m/z ; DP, Declustering potentials; CE, Collision energies; CXP, cell exit potentials; EP, entrance potential(Q0 less).