Zwitterionic oligomers of 3-aminobenzoic acid on screen-printed electrodes: structure, properties and forensic application

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F24%3A43927693" target="_blank" >RIV/60461373:22340/24:43927693 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22810/24:43927693

Výsledek na webu

<a href="http://doi.org/10.1039/D3AN01700A" target="_blank" >http://doi.org/10.1039/D3AN01700A</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/D3AN01700A" target="_blank" >10.1039/D3AN01700A</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Zwitterionic oligomers of 3-aminobenzoic acid on screen-printed electrodes: structure, properties and forensic application

Popis výsledku v původním jazyce

The popularity and rapid spread of new psychoactive substances is why there is an urgent need for their fast monitoring in saliva in the field with electrodes modified with a selective receptor. Oligomers of electrochemically oxidized 3-aminobenzoic acid that are deposited on the surface of a graphite screen-printed electrode (o-3ABA/G/SPE) is proposed as a selector for the analyte of forensic interest. The oligomeric structure and existence of the zwitterionic form of o-3ABA on the G/SPE surface was confirmed using scanning electron microscopy, Raman spectroscopy and cyclic voltammetry techniques. The equilibrium adsorption constants between o-3ABA and 2-aminoindane (primary amine: Kads(2-AI) = 5.31 x 104) and selected synthetic cathinones (secondary amine: Kads(butylone) = 6.12 x 105, tertiary amines: Kads(MDPV) = 3.41 x 104 and Kads(naphyrone) = 1.01 x 104) were estimated using the electrochemical impedance spectroscopy (EIS) technique. The EIS technique was applied for determining a 1.0 mu M concentration of 2-AI (RSD 3.5-4.0%) and butylone (RSD 4.9-6.4%) in the model and oral fluid samples.Zwitterionic oligomers of 3-aminobenzoic acid (o-3ABA) were electrochemically deposited on screen-printed electrodes. The o-3ABA-modified electrodes offer new possibilities for the discrimination and determination of new psychoactive substances.

Název v anglickém jazyce

Zwitterionic oligomers of 3-aminobenzoic acid on screen-printed electrodes: structure, properties and forensic application

Popis výsledku anglicky

The popularity and rapid spread of new psychoactive substances is why there is an urgent need for their fast monitoring in saliva in the field with electrodes modified with a selective receptor. Oligomers of electrochemically oxidized 3-aminobenzoic acid that are deposited on the surface of a graphite screen-printed electrode (o-3ABA/G/SPE) is proposed as a selector for the analyte of forensic interest. The oligomeric structure and existence of the zwitterionic form of o-3ABA on the G/SPE surface was confirmed using scanning electron microscopy, Raman spectroscopy and cyclic voltammetry techniques. The equilibrium adsorption constants between o-3ABA and 2-aminoindane (primary amine: Kads(2-AI) = 5.31 x 104) and selected synthetic cathinones (secondary amine: Kads(butylone) = 6.12 x 105, tertiary amines: Kads(MDPV) = 3.41 x 104 and Kads(naphyrone) = 1.01 x 104) were estimated using the electrochemical impedance spectroscopy (EIS) technique. The EIS technique was applied for determining a 1.0 mu M concentration of 2-AI (RSD 3.5-4.0%) and butylone (RSD 4.9-6.4%) in the model and oral fluid samples.Zwitterionic oligomers of 3-aminobenzoic acid (o-3ABA) were electrochemically deposited on screen-printed electrodes. The o-3ABA-modified electrodes offer new possibilities for the discrimination and determination of new psychoactive substances.

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

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

ANALYST

ISSN

0003-2654

e-ISSN

1364-5528

Svazek periodika

149

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

1121-1131

Kód UT WoS článku

001140047400001

EID výsledku v databázi Scopus

2-s2.0-85182376083