Size and mass determination of silver nanoparticles in an aqueousmatrix using asymmetric flow field flow fractionation coupled toinductively coupled plasma mass spectrometer andultraviolet–visible detectors

The use of engineered silver nanoparticles in consumer products such as textiles and personal care products has strongly increased in the last years enhancing the probability that they deliberately or accidentally reach the environment potentially exercising hazard and toxicity therein. For this reason easy, reliable and sensitive methods for the determination of nano-sized silver in various matrices are required. This paper describes a new method for the simultaneous determination of particles-size and mass-concentration of citrate-stabilized silver nanoparticles in aqueous matrices by asymmetric flow field flow fractionation coupled to an ICP-MS and UV/VIS detector. Size and mass-calibration are done by pre-channel injections of monodispersed silver nanoparticles. The suitability of the method to generate accurate and reliable results was verified by determination of parameters such as precision under repeatability conditions, linearity, accuracy, recovery, ruggedness and analytical sensitivity.

GEISS Otmar;  CASCIO Claudia;  GILLILAND Douglas;  FRANCHINI Fabio;  BARRERO Josefa; 

2013-11-29

ELSEVIER SCIENCE BV

JRC83262

0021-9673,   

http://www.sciencedirect.com/science/article/pii/S0021967313016798,    https://publications.jrc.ec.europa.eu/repository/handle/JRC83262,   

10.1016/j.chroma.2013.10.060,