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Table 2 Optimized parameters of the method for selected alkaloids: tR, precursor ion, product ion, CV and CE

From: Natural alkaloids from narrow-leaf and yellow lupins transfer to soil and soil solution in agricultural fields

Alkaloids tR (min) Precursor ion (m/z) Product ion (m/z) CV (V) CE (eV)
Angustifoline 5.81 235.18 193.13 30 35
Cytisine 3.63 191.11 148.07 20 30
Gramine 5.62 175.12 130.06 15 15
Hydroxylupanine 5.15 265.19 247.18 30 30
Lupanine 6.14 249.19 136.11 30 35
Lupinine 2.98 170.15 152.14 25 30
Matrine 6.02 249.19 148.11 25 35
Sparteine 6.98 235.21 98.09 30 35