Fig. 6: The potential applicability of the TAPP-based in-situ derivatization strategy.

MALDI-MS spectra of A Perilla aldehyde standard solution (200.0 μg/mL), B Citral standard solution (200.0 μg/mL), C Citronellal standard solution (200.0 μg/mL), and D p-Coumaraldehyde standard solution (200.0 μg/mL), all following in-situ derivatization with TAPP. CHCA was utilized as the MALDI matrix.