Abstract
This paper describes the use of liquid chromatography coupled to tandem mass spectrometry for the determination of acrylamide in several typical foods produced and consumed in Spain. Christmas sweets, olives, traditionally made potato crisps, pastry products, sweet fritters (“ churros”) and one of Spain's most famous dishes, Spanish omelette, were selected. Using the mass spectra information provided by an ion trap analyzer in combination with the accurate mass measurements from time-of-flight (TOF) spectrometry a co-extractive interference present in some potato products was identified as valine. A porous graphitic carbon column, which enabled the co-extractive and acrylamide to be separated, and ion trap or triple quadrupole analyzers, depending on the acrylamide concentration, were used to determine this genotoxic compound in foodstuffs. The highest values were found in potato products, sweet fritters, Christmas sweets and pastry products, with values ranging between 70 and 2000 μg/g. Spanish omelette presented relatively low levels, similar to those obtained for dried fruits.
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