This paper describes the development, validation and application
of a LC/UV/Fluorescence assay for quantitative analysis of five
active amines in C. aurantium raw material and derivatives. The
method has been fully validated according to FDA Guidelines for
Bioanalytical Method Validation (FDA, 2013) showing accurate,
precise, selective, fast and relatively inexpensive analyzes. The
quantification of these amines is particularly important since their
concentrations in PFS are regulated by national and international
laws and for post-market control of undeclared illegal addition of
synephrine and octopamine. The improved chromatographic system
and the use of a fluorescence detector provide a validated tool
to analyze the five active amines in complex matrices, including
plant food supplements.