Rapid Quantitative Analysis of Toxic Norditerpenoid Alkaloids in Larkspur (Delphinium spp.) by Flow Injection - Electrospray Ionization – Mass Spectrometry

Dale R. Gardner, Stephen T. Lee & Daniel Cook
A rapid flow injection - electrospray ionization – mass spectrometry (FI-ESI-MS) method for the quantitative and qualitative analysis of norditerpenoid alkaloids in larkspur plants was developed. The FI-ESI-MS method was calibrated for alkaloid concentrations with larkspur plant samples against an existing Fourier transform infrared spectroscopy FTIR method. There was a strong correlation (r = 0.9926, r = 0.9891) between the FTIR and FI-ESI-MS methods. The relative standard deviation (RSD) for all measurements were ≤ 6.2...
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