WG2 - The Analytical Toolbox

Methods are available for the analysis of pure ENMs present in certain matrices of low complexity like ultrapure water or filtered tap water. Validated routine methods for the identification and quantitative analysis of ENMs in complex environmental matrices are still scarce. New analytical methods capable of selectively detecting ENM signatures in complex samples are needed. These methods should ideally generate more than one type of information. Questions that arise and are addressed within the Action are:


(i) answering the question whether ENMs are present or not;

(ii) classifying ENMs into different groups (e.g., based on their composition, shape, size);

(iii) identifying the origin of ENMs (anthropogenic/incidental/natural).


The core methodologies in ENTER are based on electron microscopy, field flow fractionation techniques and atomic spectrometry.

All WGs are cross-linked – WG2 will directly support WG1; furthermore, results obtained can function as a basis for the design of further toxicity studies within WG3 and help to derive regulations.


Chair: Dr. Y. Sivry (University of Paris, France)

Vice-Chair: Dr. B. Meermann (Federal Institute of Hydrology, Germany)