Fast, Accurate, and Point-of-Care Electrochemical Sensing Platform for Theobromine Determination in Food Samples Based on Boron-Doped Diamond Printed Electrode

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F25%3A39923423" target="_blank" >RIV/00216275:25310/25:39923423 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1149/1945-7111/adc341" target="_blank" >https://doi.org/10.1149/1945-7111/adc341</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1149/1945-7111/adc341" target="_blank" >10.1149/1945-7111/adc341</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fast, Accurate, and Point-of-Care Electrochemical Sensing Platform for Theobromine Determination in Food Samples Based on Boron-Doped Diamond Printed Electrode

Popis výsledku v původním jazyce

Theobromine (3,7-dimethylxanthine; TB) is a naturally occurring alkaloid found in various food products, such as chocolate, making cocoa and chocolate products its primary dietary sources. TB levels are higher in cocoa beans, approximately 1.2-5 g/100 g, in dark chocolates, approximately 1 g/100 g, and in milk chocolates, 0.1-0.5 g/100 g. This work describes a determination of theobromine with a screen-printed sensor with chemically-deposited boron-doped diamond electrodes (BDD SPEs). The proposed method has LOD of 0.5128 mu M and a LOQ of 1.5539 mu M, with BDD SPEs in 0.5 M H2SO4, for theobromine. Linear concentration range was obtained from 1 to 60 mu M. Determination of TB was performed in the real sample analysis-chocolates with two different percentages of cocoa, using BDD SPEs, and results were confirmed with HPLC analysis. Furthermore, the modified BDD SPEs demonstrate remarkable characteristics, including exceptional stability, consistent repeatability, and optimal readiness for real-world applications.

Název v anglickém jazyce

Fast, Accurate, and Point-of-Care Electrochemical Sensing Platform for Theobromine Determination in Food Samples Based on Boron-Doped Diamond Printed Electrode

Popis výsledku anglicky

Theobromine (3,7-dimethylxanthine; TB) is a naturally occurring alkaloid found in various food products, such as chocolate, making cocoa and chocolate products its primary dietary sources. TB levels are higher in cocoa beans, approximately 1.2-5 g/100 g, in dark chocolates, approximately 1 g/100 g, and in milk chocolates, 0.1-0.5 g/100 g. This work describes a determination of theobromine with a screen-printed sensor with chemically-deposited boron-doped diamond electrodes (BDD SPEs). The proposed method has LOD of 0.5128 mu M and a LOQ of 1.5539 mu M, with BDD SPEs in 0.5 M H2SO4, for theobromine. Linear concentration range was obtained from 1 to 60 mu M. Determination of TB was performed in the real sample analysis-chocolates with two different percentages of cocoa, using BDD SPEs, and results were confirmed with HPLC analysis. Furthermore, the modified BDD SPEs demonstrate remarkable characteristics, including exceptional stability, consistent repeatability, and optimal readiness for real-world applications.

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

Journal of the Electrochemical Society

ISSN

0013-4651

e-ISSN

1945-7111

Svazek periodika

172

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

037523

Kód UT WoS článku

001456282800001

EID výsledku v databázi Scopus

2-s2.0-105001960249