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Figure 3 | Plant Methods

Figure 3

From: Simultaneous molecular formula determinations of natural compounds in a plant extract using 15 T Fourier transform ion cyclotron resonance mass spectrometry

Figure 3

Comparison of the experimental and the theoretical IFSs. The experimental IFS of the ions with monoisotopic peaks at m/z 749.48341 (A) and five theoretical IFSs for [C40H57N14O]+ (B), [C42H69O11]+ (C), [C42H62N8O3Na]+ (D), [C39H66N8O4K]+ (E), and [C55H61N2]+ (F). From the comparison between the experimental IFS and the theoretical IFSs, the ionic formula of the compound at m/z 749.48341 was assigned to [C42H69O11]+, the molecular formula of (C). Calculated peak intensity of the each isotopic peak in the isotopic fine structures of candidate molecular ions is listed in Additional file1.

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Plant Methods

ISSN: 1746-4811