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. 2019 May 24;91(13):8326–8333. doi: 10.1021/acs.analchem.9b01094

Table 1. Total Number of Peaks Detected (N), Total Ion Current (TIC), Average Double Bond Equivalents (DBE), O/C, H/C, and Carbon Oxidation State (OSc) of All Formulas in the Mass Spectra from the Smooth/Distal and Ridged/Proximal Portions of the Petals of Hibiscus richardsonii Derived from the Three Different Extraction Methods.

portion of the petals extraction methods (extraction solvent) N TIC (a.u.) DBE O/C H/C OSc
smooth/distal LESA (polar mixture) 641 3.83 × 107 10 0.58 1.32 –0.15
smooth/distal LESA (non-polar mixture) 1073 5.48 × 106 7 0.45 1.45 –0.56
smooth/distal depolymerization + LESA (non-polar mixture) 1395 6.07 × 107 8 0.29 1.58 –1.01
ridged/proximal LESA (polar mixture) 743 6.44 × 106 8 0.46 1.49 –0.57
ridged/proximal LESA (non-polar mixture) 990 3.77 × 106 7 0.46 1.43 –0.52
ridged/proximal depolymerization + LESA (non-polar mixture) 1601 1.75 × 108 6 0.25 1.67 –1.16