[Control of nanoparticles in food and biological objects. Report 2. Filtration, centrifugation, spectral methods and...

The large number of the analysis methods of engineered nanoparticles and nanoobjects as a part of disperse systems on the basis of principles of a membrane filtration (micro, ultra- and a nanofiltration) ultracentrifugation, spectral methods, including dynamic and static laser light scattering, Raman light scattering, low-angle X-ray scattering, x-ray techniques, laser decomposition spectroscopy, and other methods are developed. Mass spectrometry with inductively coupled plasma can be successfully used in studying of nanomaterials chemical composition in conditions when there is additional independent information on presence of analyzed substance in a nanoscale form. Methods of electrophoresis in a supportive environment and capillary electrophoresis are beginning to be successfully applied in the study of artificial nanomaterials. However, in terms of the identification of engineered nanoparticles and nanoobjects in complex, multicomponent, heterophase systems, that the objects of the environment and, in particular, food products are, all these methods currently can't compete transmission electron microscopy and atomic force microscopy, specified for purpose of certain particular applications, features of which been described in a previous eport in detail.