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Materials (Basel). 2020 Mar 18;13(6). doi: 10.3390/ma13061373.

Citrate and Polyvinylpyrrolidone Stabilized Silver Nanoparticles as Selective Colorimetric Sensor for Aluminum (III) Ions in Real Water Samples.

Materials (Basel, Switzerland)

Paula Ruíz Del Portal-Vázquez, Germán López-Pérez, Rafael Prado-Gotor, Cristina Román-Hidalgo, María Jesús Martín-Valero

Affiliations

  1. Department of Analytical Chemistry, Faculty of Chemistry, University of Sevilla, 41012 Sevilla, Spain.
  2. Department of Physical Chemistry, Faculty of Chemistry, University of Sevilla, 41012 Sevilla, Spain.

PMID: 32197492 PMCID: PMC7143323 DOI: 10.3390/ma13061373

Abstract

The use of silver nanoparticles stabilized with citrate and polyvinylpyrrolidone as a sensor for aluminum ions determination is proposed in this paper. These non-functionalized and specific nanoparticles provide a highly selective and sensitive detection system for aluminum in acidic solutions. The synthesized nanoparticles were characterized by transmission electron microscopy. Surface plasmon band deconvolution analysis was applied to study the interaction between silver nanoparticles and aluminum ions in solution. The interaction band in the UV-visible region was used as an analytical signal for quantitation purposes. The proposed detection system offers an effective AND wide linearity range (0.1-10

Keywords: Surface Plasmon Band deconvolution; aluminum; polyvinylpyrrolidone; sensoring; silver nanoparticles

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