Optimised method for the analysis of titanium dioxide nanoparticles
The JRC developed a method based on field-flow fractionation for the detection of nanoparticles in a titanium dioxide material. This method has the potential to be applied for the characterisation of several non-coated and commercially available titanium dioxide materials, some of them authorised and used as feed additives in the European market.
Titanium dioxide (TiO2) is one of the most widely employed nanomaterials; it is used in paints, cosmetics or as an additive in food and feeding stuffs. JRC scientists proposed a new approach based on the use of experimental design for the optimisation of a field flow fractionation method for the characterisation of polydisperse coated TiO2, a feed and food additive (E171) used as colorant and/or 'anti-caking' agent. The availability of this method is considered as an important prerequisite to investigate the nano-characteristics of titanium dioxide containing food and feed additives.