Issue 4, 2020
From the journal:

Analytical Methods

A dynamic gas extraction-assisted paper-based method for colorimetric determination of bromides†

Marina O. Gorbunova, ORCID logo ab   Maria S. Garshina,a   Margarita S. Kulyaginova,b   Vladimir V. Apyari, ORCID logo *c   Aleksei A. Furletov,c   Alexey V. Garshev,cd   Stanislava G. Dmitrienkoc  and  Yury A. Zolotovce  

* Corresponding authors

a Southern Federal University, Department of Chemistry, Zorge St., 7, 344090 Rostov-on-Don, Russia

b Rostov State Medical University of the Ministry of Healthcare of Russian Federation, Pharmaceutical Faculty, Nakhichevansky Lane, 29, 344022 Rostov-on-Don, Russia

c Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
E-mail: apyari@mail.ru
Tel: +7 4959394608

d Department of Materials Science, Lomonosov Moscow State University, Leninskie Gory, 1/73, 119991 Moscow, Russia

e Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninsky Prospect, 31, 119991 Moscow, Russia

Abstract

A new method for selective determination of bromides in natural waters, foodstuffs and pharmaceuticals has been developed. It is based on oxidation of bromides with dichromate, dynamic gas extraction of molecular bromine with an air flow and sensing by paper modified with silver triangular nanoplates (AgTNPs) as a colorimetric reagent. Interaction of AgTNPs with bromine resulted in the discoloration of the AgTNP-modified paper, which was monitored using a scanner. The high selectivity of the dynamic gas extraction for volatile bromine enabled the direct determination of bromides in mineral water, river and sea water, alga, shrimps, fish, bread and pharmaceuticals with minimal sample pretreatment. The limit of detection of bromide was found to be 0.02 mg L−1. The determination range was 0.05–1.5 mg L−1.

Graphical abstract: A dynamic gas extraction-assisted paper-based method for colorimetric determination of bromides

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Article information

DOI
https://doi.org/10.1039/C9AY02640A
Article type
Technical Note
Submitted
09 Dec 2019
Accepted
03 Jan 2020
First published
08 Jan 2020

Anal. Methods, 2020,12, 587-594

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A dynamic gas extraction-assisted paper-based method for colorimetric determination of bromides

M. O. Gorbunova, M. S. Garshina, M. S. Kulyaginova, V. V. Apyari, A. A. Furletov, A. V. Garshev, S. G. Dmitrienko and Y. A. Zolotov, Anal. Methods, 2020, 12, 587 DOI: 10.1039/C9AY02640A

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