Selective determination of chloride ions using silver triangular nanoplates and dynamic gas extraction
| Autor: | Vladimir V. Apyari, Pavel A. Volkov, Stanislava G. Dmitrienko, Aleksei A. Furletov, Marina O. Gorbunova, Anastasiya V. Shevchenko, Alexey V. Garshev |
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| Rok vydání: | 2018 |
| Předmět: |
Analyte
Inorganic chemistry Analytical chemistry Nanoparticle chemistry.chemical_element 02 engineering and technology Inorganic ions 01 natural sciences Chloride Ion Materials Chemistry medicine Chlorine Electrical and Electronic Engineering Instrumentation Chemistry 010401 analytical chemistry Extraction (chemistry) Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials 0210 nano-technology Selectivity medicine.drug |
| Zdroj: | Sensors and Actuators B: Chemical. 256:699-705 |
| ISSN: | 0925-4005 |
| Popis: | In this article, we propose a novel selective method for determination of chlorides using paper modified with silver triangular nanoplates. It is based on simultaneous in-situ conversion of chloride ions into chlorine and its dynamic gas extraction with digital colorimetric detection using convenient nanoparticle-modified paper test strips. The dynamic gas extraction improves remarkably selectivity of the nanoparticle-based detection. A simple and inexpensive setup allowing for realization of this combination is described. The limit of chloride ions detection is 0.04 mg L−1 and the determination range is 0.1–1.5 mg L−1. This determination can be successfully carried out in solutions containing at least 7·104 greater molar amounts of common inorganic ions. Due to the high selectivity, the direct determination of chlorides in pharmaceutical formulations, river water and tomato juice is possible with no sample pretreatment. The proposed approach seems to be promising for nanoparticle-based determinations of other analytes that can be transformed to volatile derivatives. |
| Databáze: | OpenAIRE |
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