期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 52, 页码 14476-14479出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201408927
关键词
capillary electrophoresis; electron microscopy; mass spectrometry; nanoparticles; silver
资金
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB14010400]
- National Nature Science Foundation of P. R. China [21277151, 21107210, 21377141, 21422509]
We have developed a new method for the identification and accurate size characterization of nanoparticles (NPs) in complex media based on capillary electrokinetic (CE) separation coupled to inductively coupled plasma mass spectrometry (ICP-MS). Through mass scanning and Gaussian fitting of electropherogram peaks, we can obtain multidimensional information on chemical compositions, size distributions, and ionic species of multiple NPs in a single run. The results are more accurate than those obtained by using conventional methods. This method provides a powerful tool for investigating polydisperse NP systems and rapid screening of NP-containing products.
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