Multimethod approach for the detection and characterisation of food-grade synthetic amorphous silica nanoparticles
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- 作者：Francisco Barahona ; Isaac Ojea-Jimenez ; Otmar Geiss ; Douglas Gilliland ; Josefa Barrero-Moreno ; Josefa.BARRERO@ec.europa.eu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Silica nanoparticle ; AF4 ; ICP-MS ; DLS ; TEM ; Food-grade
- 刊名：Journal of Chromatography A
- 出版年：2016
- 出版时间：5 February 2016
- 年：2016
- 卷：1432
- 期：Complete
- 页码：92-100
- 全文大小：2416 K
文摘
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This work presents the determination of NPs in eleven food-grade SAS samples.
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A sequential procedure using DLS, AF4-MALS-ICPMS and TEM is proposed and discussed.
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AF4-ICPMS allowed the detection of SiO2-NPs below 100 nm at mg L−1 level.
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Minimum detectable sizes by TEM are reported together with SiO2-NPs’ size values.
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Techniques in this work can be only positive tests for EC Regulation 1169/2011.