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Fig. 4 | Plant Methods

Fig. 4

From: Quantification of karrikins in smoke water using ultra-high performance liquid chromatography–tandem mass spectrometry

Fig. 4

Full-scan (a) and product ion (b) mass spectra of the studied compounds obtained using the optimised UHPLC-ESI(+)-MS/MS method. MS spectra of KAR1 (top) and KAR2 (bottom) were analysed with a tandem mass spectrometer Xevo TQ-S in positive ion mode. c Separation of KAR standards by the UHPLC-ESI(+)-MS/MS method using an Acquity UPLC BEH C18 2.1 × 50 mm column. Multi-MRM chromatograms of KAR1, KAR2 and KAR-Br (internal standard) samples, containing 1 pmol of each derivative per injection

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