DIN Standards Committee Materials Testing
Nanotechnologies - Guidelines for sample preparation, detection, identification and characterization by spICP MS and EM EDX of nano objects in inorganic additives incorporated in food matrices; German version FprEN CEN/TS 18267:2025
Abstract
This document provides guidance to the food industry, services providers and control laboratories on methodologies to be used for sample preparation, detection, identification and characterization of nano-objects in inorganic food additives incorporated in food matrices. Electron microscopy combined with energy dispersive X-ray spectroscopy (EM-EDX) and inductively coupled plasma mass spectrometry (ICP-MS) in single particle mode (spICP-MS) are the selected measurement methodologies to provide information on (i) the chemical composition and (ii) number based particle size distribution of the nano-objects. Special attention is given to the sample preparation, including matrix digestion, particle extraction and dilution steps to be used according to the combination of (i) the chemical nature of the food additive, (ii) the type of food matrix and (iii) the analytical technique of choice (EM-EDX or spICP-MS).
Begin
2025-03-10
WI
00352044
Planned document number
DIN CEN/TS 18267
Project number
06235711
