Selective extraction of thiol-containing peptides in seawater using Tween 20-capped gold nanoparticles followed by capillary electrophoresis with laser-induced fluorescence.

Abstract

This study combines Tween 20-capped gold nanoparticles (Tween 20-AuNPs) with capillary electrophoresis (CE) for ultrasensitive detection of thiol-containing peptides, including glutathione (GSH), γ-glutamylcysteine (γ-GCS), and phytochelatin analogs. By forming AuS bonds, Tween 20-AuNPs can selectively extract and enrich these thiols from a complicated… (More)
DOI: 10.1016/j.chroma.2011.11.057

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