Total Reflection X-Ray Fluorescence as a Tool For Food Screening
Abstract
Elemental composition of food is of great importance, since food is the main source of essential, major and trace elements for humans. Some potentially toxic elements may contaminate food, entering the food chain from the environment, processing, and storage. Therefore, the elemental analysis of food is fundamental for safety assessment. Fast and sensitive analytical techniques are required as a result of the increasing demand on multi-elemental analysis and product screening. Total reflection X-Ray Fluorescence (TXRF) is suitable technique, since it provides simultaneous multi-elemental identification in a wide dynamic range of concentrations. In this review, several different matrices such as drinks, beverages, vegetables, fruits, cereals, animal derivatives and dietary supplements are analysed by TXRF for food quality monitoring. The obtained results reveal a good precision and accuracy, highlighting TXRF as a competitive technique with atomic absorption spectroscopy (AAS) and inductively coupled plasma mass spectrometry (ICPMS).
Event details
- Event
- tc23-2016