Development and validation of a QuEChERS method coupled to liquid chromatography and high resolution mass spectrometry to determine pyrrolizidine and tropane alkaloids in honey



Awareness about pyrrolizidine alkaloids (PAs) and tropane alkaloids (TAs) in food was recently raised by
the European Food Safety Authority stressing the lack of data and gaps of knowledge required to improve
the risk assessment strategy. The present study aimed at the elaboration and validation of a method to
determine PAs and TAs in honey. QuEChERS sample treatment and liquid chromatography coupled to
hybrid high resolution mass spectrometry, were used. The method resulted in good linearity
(R2 > 0.99) and low limits of detection and quantification, ranging from 0.04 to 0.2 mg kg1 and from
0.1 to 0.7 mg kg1 respectively. Recoveries ranged from 92.3 to 114.8% with repeatability lying between
0.9 and 15.1% and reproducibility between 1.1 and 15.6%. These performances demonstrate the selectivity
and sensitivity of the method for simultaneous trace detection and quantification of PAs and TAs in
honey, verified through the analysis of forty commercial samples.

 

Martinello M., Borin A., Stella R., Bovo D., Biancotto G., Gallina A., Mutinelli F. Development and validation of a QuEChERS method coupled to liquid chromatography and high resolution mass spectrometry to determine pyrrolizidine and tropane alkaloids in honey. Food Chemistry 234 (2017) 295–302.

Supported by

Ricola Foundation

Veto-Pharma

University of Bern

Add an announcement

News Job      

Event Article