2016•The AnalystRequires access

Ultra-sensitive determination of silver nanoparticles by surface-enhanced Raman spectroscopy (SERS) after hydrophobization-mediated extraction

Huiyuan Guo, Baoshan Xing, Jason Christopher White, Arnab Mukherjee, Lili He

Abstract

An innovative and ultra-sensitive surface-enhanced Raman spectroscopic (SERS) method that uses a triple-functional surfactant ligand for nanoparticle surface binding, phase transfer and SERS signal reporting was developed for silver nanoparticle (AgNP) detection. The method was able to detect 100 ng L(-1) of AgNPs in aqueous samples and 2 μg g(-1) AgNPs in wheat plants.

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Available abstract

Key concepts: Surface-enhanced Raman spectroscopy, Silver nanoparticle, Nanoparticle, Raman spectroscopy, Extraction (chemistry), Pulmonary surfactant, Nanotechnology, Chemistry