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Table 1 The observed and calculated mass numbers ofLC/ESI-MSpeaks of Stemonae Radix granules

From: Inhibitory effects of Stemona tuberosa on lung inflammation in a subacute cigarette smoke-induced mouse model

Peak No. Rt (min) Theoretical mass [M + H]+ Observed mass [M + H]+ Mass difference (mmu) Identification
1 3.073 406.22239 406.22642 -4.03 Tuberostemoninol/Tuberostemonone
2 5.658 338.19618 338.19668 -0.50 6-Hydroxycroomine/Tuberospironine
3 15.040 392.24313 392.24367 -0.54 N-Oxytuberostemonine
4 17.402 376.24821 376.24806 0.15 Tuberostemonine N
5 19.311 390.22748 390.23615 -8.67 Stemoninine
6 25.729 376.24821 376.24755 0.66 Tuberostemonine K/Neotuberostemonine/Tuberostemonine/ Tuberostemonine H