Voltammetric Behavior, Identifying and Quantitatively Determining Iron-Based Nanoparticles, and Evaluating Their Stability in Simulated Solutions of Gastric Juice.

Autor: Dubova NM; Physical and Analytical Chemistry Department, National Research Tomsk Polytechnic University, Tomsk, Russia., Slepchenko GB; Physical and Analytical Chemistry Department, National Research Tomsk Polytechnic University, Tomsk, Russia., Khlusov IA; Experimental Physics Department, National Research Tomsk Polytechnic University, Tomsk, Russia.; Laboratory of Immunology and Cell Biotechnologies, Immanuel Kant Baltic Federal University, Kaliningrad, Russia.; Morphology and General Pathology Department, Siberian State Medical University, Tomsk, Russia., Ostapenko MS; Physical and Analytical Chemistry Department, National Research Tomsk Polytechnic University, Tomsk, Russia., Nesterov EA; Laboratory No. 31 of the Nuclear Reactor, National Research Tomsk Polytechnic University, Tomsk, Russia.
Jazyk: angličtina
Zdroj: Journal of analytical methods in chemistry [J Anal Methods Chem] 2018 Aug 01; Vol. 2018, pp. 7319067. Date of Electronic Publication: 2018 Aug 01 (Print Publication: 2018).
DOI: 10.1155/2018/7319067
Abstrakt: The electrochemical behavior of Fe 3 O 4 nanoparticles, iron nanoparticles coated with carbon, and diazonium salts by voltammetry methods using a carbon paste electrode (CPE) has been studied. There has been developed a voltammetric method for identifying and quantifying solid-phase iron-based nanoparticles in the background electrolyte of 0.02 mole/dm 3 Trilon B (pH 3.5) with the use of the CPE. Investigations of nanoparticles' stability with various coatings in a simulated solution of gastric juice have been carried out. Nanoparticles stability has been evaluated on the basis of determining Fe(III) ions in a simulated solution after contacting with nanoparticles within different periods of time using the method of inversion voltammetry. It has been shown that nanoparticles coated with carbon and salts of arendiazonium are the most resistant to aggressive media.
Databáze: MEDLINE
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