Electrochemical methods for the determination of tryptophan and caffeine

Tasić, Žaklina; Petrović Mihajlović, Marija; Simonović, Ana; Radovanović, Milan; Nujkić, Maja; Antonijević, Milan

Conference Object Open access M33

Proceedings_IOC_2023-243-246full.pdf (3.61MB)

2023

Tasić, Žaklina
Petrović Mihajlović, Marija
Simonović, Ana
Radovanović, Milan
Nujkić, Maja
Antonijević, Milan

University of Belgrade, Technical Faculty in Bor

Proceedings - 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia

221

224

English

M33 - Conference paper at an international conference, printed in full

Electrochemical methods are widely used for the determination of various chemical compounds due to their simplicity and short time for analysis, as well as enabling low detection limits. Various electrodes have been developed over the years, including those made from carbon materials, gold, mercury, as well as various modified electrodes for detection of analytes. Carbon electrodes are particularly favored as they possess low background current and high electrical conductivity. Also, they are relatively inexpensive, easy to prepare, and generally non-toxic. In this study, the sensor characteristics of a graphite electrode prepared from spent zinc-carbon batteries for the determination of tryptophan and caffeine have been investigated. Britton-Robinson and acetate buffers were used as electrolytes. The obtained results demonstrated that this electrode is a good electrochemical sensor for detecting tryptophan alone as well as in the presence of caffeine. Additionally, the modified graphite electrode is resulting in improved sensor characteristics for the determination of tryptophan in Britton-Robinson buffer. The results obtained by differential pulse and cyclic voltammetry highlight the potential of graphite electrodes as effective electrochemical sensors for the detection of analytes.

The authors are grateful to the Ministry of Science, Technological Development and Innovation of the Republic of Serbia for financial support according to the contract with the registration number (451-03-47/2023-01/200131).

electrochemical sensor, zinc-carbon batteries, caffeine, tryptophan, modified graphite electrode

ISBN

978-86-6305-140-9

URI

https://ioc.tfbor.bg.ac.rs/public/2023/Proce...
https://repozitorijum.tfbor.bg.ac.rs/handle/...

dc.rights.license	CC-BY-NC-ND
dc.date.available	2023-12-21T09:14:34Z
dc.date.issued	2023
dc.identifier.isbn	978-86-6305-140-9
dc.identifier.uri	https://ioc.tfbor.bg.ac.rs/public/2023/Proceedings_IOC_2023.pdf
dc.identifier.uri	https://repozitorijum.tfbor.bg.ac.rs/handle/123456789/13
dc.description.abstract	Electrochemical methods are widely used for the determination of various chemical compounds due to their simplicity and short time for analysis, as well as enabling low detection limits. Various electrodes have been developed over the years, including those made from carbon materials, gold, mercury, as well as various modified electrodes for detection of analytes. Carbon electrodes are particularly favored as they possess low background current and high electrical conductivity. Also, they are relatively inexpensive, easy to prepare, and generally non-toxic. In this study, the sensor characteristics of a graphite electrode prepared from spent zinc-carbon batteries for the determination of tryptophan and caffeine have been investigated. Britton-Robinson and acetate buffers were used as electrolytes. The obtained results demonstrated that this electrode is a good electrochemical sensor for detecting tryptophan alone as well as in the presence of caffeine. Additionally, the modified graphite electrode is resulting in improved sensor characteristics for the determination of tryptophan in Britton-Robinson buffer. The results obtained by differential pulse and cyclic voltammetry highlight the potential of graphite electrodes as effective electrochemical sensors for the detection of analytes.
dc.description.sponsorship	The authors are grateful to the Ministry of Science, Technological Development and Innovation of the Republic of Serbia for financial support according to the contract with the registration number (451-03-47/2023-01/200131).
dc.language.iso	en
dc.publisher	University of Belgrade, Technical Faculty in Bor
dc.source	Proceedings - 54th International October Conference on Mining and Metallurgy - IOC 2023, 18-21 October 2023, Bor Lake, Serbia
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	electrochemical sensor
dc.subject	zinc-carbon batteries
dc.subject	caffeine
dc.subject	tryptophan
dc.subject	modified graphite electrode
dc.title	Electrochemical methods for the determination of tryptophan and caffeine
dc.type	conferenceObject
dc.type.version	publishedVersion
dc.citation.spage	221
dc.citation.epage	224
dc.creator	Tasić, Žaklina
dc.citation.rank	M33
dc.creator	Petrović Mihajlović, Marija
dc.creator	Simonović, Ana
dc.creator	Radovanović, Milan
dc.creator	Nujkić, Maja
dc.creator	Antonijević, Milan
dc.date.accessioned	2023-12-21T09:14:34Z


Electrochemical methods for the determination of tryptophan and caffeine	1


Proceedings_IOC_2023-243-246full.pdf	0