Label free electrochemical detection of 2- aminoindane

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F25%3A43929910" target="_blank" >RIV/60461373:22340/25:43929910 - isvavai.cz</a>

Výsledek na webu

<a href="http://sciencedirect.com/science/article/pii/S0925400524014904?via%3Dihub" target="_blank" >http://sciencedirect.com/science/article/pii/S0925400524014904?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.snb.2024.136760" target="_blank" >10.1016/j.snb.2024.136760</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Label free electrochemical detection of 2- aminoindane

Popis výsledku v původním jazyce

This study describes a label-free voltammetric detection of 2-aminoindane (2-AI), a novel psychoactive substance, using graphite screen-printed electrode modified by an electrochemically oxidized cobalt bis(dicarbollide) derivative (CoK/G/SPE). Morphological, structural and electrochemical characterization is assessed by using a computational approach, scanning electron microscopy, infrared spectrometry and electrochemical techniques. The binding/recognition of 2-AI (as a primary analyte) and 2,5-dimethoxy-4-iodoamphetamine (DOI, as interferent from category amphetamines) is compared, with CoK as a monomer as well as electrochemically deposited on the G/SPE surface. The mechanism of selectivity is proposed. The experimental findings show that these two stimulants compete for the binding/recognition sites on the modified electrode surface, with the adsorption constant values of (2.62 ± 0.67) x 105 and (6.10 ± 1.32) x 105, a linear range of 19.9 – 119 μmol L–1 and 9.97 – 235 μmol L–1, and the limit of detection 7.2 μmol L–1 and 2.37 μmol L–1for 2-AI and DOI, respectively. An important point considering the analytical applicability and significance of CoK/G/SPE for forensic analysis is the possibility to distinguish 2-AI from an amphetamine derivative in a two-component mixture. The CoK/G/SPE electrodes are successfully applied to determine 19.9 μmol L–1 2-AI in spiked model samples with recovery values of 85.3–94.8% and relative standard deviations 10–21%. Such reproducibility is satisfactory considering the low cost of the electrode fabrication route.

Název v anglickém jazyce

Label free electrochemical detection of 2- aminoindane

Popis výsledku anglicky

This study describes a label-free voltammetric detection of 2-aminoindane (2-AI), a novel psychoactive substance, using graphite screen-printed electrode modified by an electrochemically oxidized cobalt bis(dicarbollide) derivative (CoK/G/SPE). Morphological, structural and electrochemical characterization is assessed by using a computational approach, scanning electron microscopy, infrared spectrometry and electrochemical techniques. The binding/recognition of 2-AI (as a primary analyte) and 2,5-dimethoxy-4-iodoamphetamine (DOI, as interferent from category amphetamines) is compared, with CoK as a monomer as well as electrochemically deposited on the G/SPE surface. The mechanism of selectivity is proposed. The experimental findings show that these two stimulants compete for the binding/recognition sites on the modified electrode surface, with the adsorption constant values of (2.62 ± 0.67) x 105 and (6.10 ± 1.32) x 105, a linear range of 19.9 – 119 μmol L–1 and 9.97 – 235 μmol L–1, and the limit of detection 7.2 μmol L–1 and 2.37 μmol L–1for 2-AI and DOI, respectively. An important point considering the analytical applicability and significance of CoK/G/SPE for forensic analysis is the possibility to distinguish 2-AI from an amphetamine derivative in a two-component mixture. The CoK/G/SPE electrodes are successfully applied to determine 19.9 μmol L–1 2-AI in spiked model samples with recovery values of 85.3–94.8% and relative standard deviations 10–21%. Such reproducibility is satisfactory considering the low cost of the electrode fabrication route.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

SENSORS AND ACTUATORS B-CHEMICAL

ISSN

0925-4005

e-ISSN

0925-4005

Svazek periodika

423

Číslo periodika v rámci svazku

15 January 2025

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

nestránkováno

Kód UT WoS článku

001336654300001

EID výsledku v databázi Scopus

2-s2.0-85206085094