Trace Analysis of Engineered Silver Nanomaterials in Environmental Water Samples

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Date: 09:00:00 - Nov 21 2018
Speakers: Paul Clarke
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Engineered silver nanomaterials (AgNM) have become an essential part of our daily life. Being used as antibacterial mean in numerous products such as e.g., deodorants, cleaners or sportswear, AgNM finally end up in the environment, where their behavior and fate is still widely unexplored mainly due to the lack of available analytical techniques and methodologies for their determination at trace levels in complex matrices.

In this presentation, the hyphenation of Asymmetrical Flow Field-Flow Fractionation (AF4) and Inductively-coupled Plasma Mass Spectrometry (ICP-MS) is evaluated towards its applicability for the analysis of AgNM in complex environmental water samples at environmentally relevant concentrations < µg/L. Proper AF4 method development as well as selected examples are presented and the results obtained are critically evaluated.

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Speakers


Paul Clarke
Paul Clarke (Postnova Analytics UK Ltd)

Paul is a member of the UK Royal Society of Chemistry and has over 30 years practical experience in the separation and characterisation of macromolecules and particles by SEC, FFF, light scattering and viscometry. He has spent most of that time in the analytical instruments industry working for long periods with Viscotek Corporation (USA), Malvern Instruments (UK) and now currently with Postnova Analytics (Germany) where he is the UK Managing Director. His background and experience covers all aspects of the separation and characterisation of proteins, polymers and particles using a wide variety of techniques with an emphasis on multi-detection, flow-based techniques to yield the maximum information per analysis.

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