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. Author manuscript; available in PMC: 2015 Sep 18.
Published in final edited form as: Anal Chem. 2013 Feb 27;85(6):3380–3384. doi: 10.1021/ac400077e

Table 1.

Multiple reaction mode (MRM) transitions used for monitoring minor alkaloids and internal standards in tobacco samples.

Compound Retention Time (min) Quantitation MRM Transitions, m/z (Dwell (ms); Ionization energy (V)) Confirmation MRM Transitions, m/z (Dwell (ms); Ionization energy (V))
Nornicotine 6.12 148.0 → 106.0 (90; 1) 148.0 → 70.0 (90; 6)
Myosmine 6.20 146.1 → 118.1 (30; 22) 146.1 → 91.0 (30; 35)
Anabasine 6.67 162.1 → 106.1 (20; 20) 162.1 → 84.0 (20; 2)
Anatabine 6.98 160.0 → 145.1 (85; 6) 160.0 → 82.0 (85; 7)
Isonicoteine 7.21 156.1 → 130.0 (85; 15) 156.1 → 101.0 (85;37)
D3-Nicotine (ISTD) 5.04 165.1 → 136.1 (85; 25) 165.1 → 87.1 (85; 8)
D4-Nornicotine (ISTD) 6.11 151.2 → 109.1 (30; 22) 121.9 → 95.1 (30; 24)