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Fig. 3 | Journal of Analytical Science and Technology

Fig. 3

From: UPLC/FT-ICR MS-based high-resolution platform for determining the geographical origins of raw propolis samples

Fig. 3

Total ion chromatograms of EEP samples from a Argentina, b Brazil, c China, and d Korea, as obtained by UPLC/FT-ICR MS. PLS-DA models obtained using UPLC and UPLC/FT-ICR MS data. Quantitation data of ten phenolic compounds using UPLC was used for model (e), whereas selected key molecular features (VIP > 4, and fold change ≥ 2 or ≤ − 2 or observed only in each sample) obtained by FT-ICR MS analysis were used to generate model (f)

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