Pharmacokinetics of five phthalides in volatile oil of Ligusticum sinense Oliv.cv. Chaxiong, and comparison study on physicochemistry and pharmacokinetics after being formulated into solid dispersion and inclusion compound

Table 2 Conditions of mass spectrum on each index component and internal standard

component	[M + H]⁺ (m₁/m₂)	Declustering voltage(U/V)	Collision energy(E/eV)	retention time(t/min)
SA	193.1 → 136.8	76	17	4.17
NBP	191.3 → 116.9	78	30	4.37
NOL	195.0 → 149.0	79	14	5.09
ZL	191.1 → 173.1	88	40	5.39
BP	189.1 → 128.0	76	35	5.52
DL(IS)	231.0 → 185.1	78	12	5.85

ISSN: 2662-7671