Towards highly selective detection using metal nanoparticles: A case of silver triangular nanoplates and chlorine

Vladimir V Apyari; Marina O Gorbunova; Anastasiya V Shevchenko; Aleksei A Furletov; Pavel A Volkov; Alexey V Garshev; Stanislava G Dmitrienko; Yury A Zolotov

doi:10.1016/j.talanta.2017.08.056

Towards highly selective detection using metal nanoparticles: A case of silver triangular nanoplates and chlorine

Talanta. 2018 Jan 1:176:406-411. doi: 10.1016/j.talanta.2017.08.056. Epub 2017 Aug 17.

Authors

Vladimir V Apyari¹, Marina O Gorbunova², Anastasiya V Shevchenko³, Aleksei A Furletov⁴, Pavel A Volkov⁵, Alexey V Garshev⁶, Stanislava G Dmitrienko⁴, Yury A Zolotov⁴

Affiliations

¹ Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia. Electronic address: apyari@mail.ru.
² Southern Federal University, Department of Chemistry, Zorge st., 7, 344090 Rostov-on-Don, Russia; Rostov State Medical University of the Ministry of Healthcare of Russian Federation, Pharmaceutical Faculty, Nakhichevansky Lane, 29, 344022 Rostov-on-Don, Russia.
³ Southern Federal University, Department of Chemistry, Zorge st., 7, 344090 Rostov-on-Don, Russia.
⁴ Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia.
⁵ Scientific-Research Institute of Chemical Reagents and Special Purity Chemicals, Bogorodsky Val st., 3, 107076 Moscow, Russia.
⁶ Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia; Department of Materials Science, Lomonosov Moscow State University, Leninskie Gory, 1/73, 119991 Moscow, Russia.

PMID: 28917769
DOI: 10.1016/j.talanta.2017.08.056

Abstract

The article describes a novel approach towards improving selectivity of volatile compounds detection using metal nanoparticles. It is based on combination of sensitive optical detection using convenient nanoparticle-modified paper test strips and dynamic gas extraction improving selectivity to volatile compounds. A simple and inexpensive setup allowing for realization of this combination is described. Analytical prospects of the approach are shown by the example of chlorine determination in highly salted aqueous solutions using silver triangular nanoplates and digital colorimetry. The limit of detection is equal to 0.03mgL^-1 and the determination range is 0.1-2mgL^-1. This determination can be successfully carried out in solutions containing at least 2·10⁵ greater molar amounts of Na⁺, K⁺, Zn²⁺, Cl^-, SO₄^2-, and H₂PO₄^- with no sample pretreatment. The approach seems to be compatible with different types of nanoparticles with respect to detection of various analytes, thus having good opportunities for further development.

Keywords: Chlorine; Digital colorimetry; Dynamic gas extraction; Metal nanoparticles; Selective detection; Silver triangular nanoplates.