Zobrazeno 1 - 10 of 38 pro vyhledávání: '"TAHIR ARBNESHI"'
1
Akademický článek
Flow Injection Amperometric Evaluation of Trolox Equivalent Antioxidant Capacity of Chocolates with Different Cocoa Content at a Boron-Doped Diamond Electrode
Autor: Tahir Arbneshi, Arbër Frangu, Michaela Frühbauerová, Libor Červenka, Liridon Berisha, Kurt Kalcher, Milan Sýs
Publikováno v: Food Technology and Biotechnology, Vol 59, Iss 2, Pp 194-200 (2021)
Research background. The objective of this paper is to introduce an instrumentally simple analytical tool for determination of cocoa solid content in chocolates. This electroanalytical method is based on amperometric oxidation of all present antioxid
Externí odkaz: https://doaj.org/article/d6a46a399abd4a23bb5022af1892a5a2
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2
Akademický článek
Voltammetric determination of cholecalciferol at glassy carbon electrode performed in water ethanol mixture
Autor: Arlinda Nallbani, Julie Holubová, Milan Sýs, Tahir Arbneshi, Karel Vytřas
Publikováno v: Potravinarstvo, Vol 12, Iss 1, Pp 166-172 (2018)
To confirm or disprove previous hypotheses, cyclic voltammetry of 0.5 mM cholecalciferol (vitamin D3) at glassy carbon electrode (GCE) and platinum disk electrode (PtE) in pure acetonitrile and water‑ethanol mixture at 50 mV·s‑1 has been used to
Externí odkaz: https://doaj.org/article/72c31b99f4d24cfe879a05113b545354
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3
Akademický článek
Simultaneous Determination of Vitamin E and Vitamin K in Food Supplements Using Adsorptive Stripping Square-Wave Voltammetry at Glassy Carbon Electrode
Autor: Gylxhane Kastrati, Granit Jashari, Milan Sýs, Blanka Švecová, Tahir Arbneshi, Radovan Metelka, Zuzana Bílková, Lucie Korecká
Publikováno v: Applied Sciences, Vol 10, Iss 14, p 4759 (2020)
A new voltammetric method for the simultaneous determination of vitamin E and vitamin K present in different types of commercially available food supplements has been developed. This electroanalytical method is based on the ex situ adsorptive accumul
Externí odkaz: https://doaj.org/article/538d8337ed094da98424db6b6f0b625d
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4
Akademický článek
Determination of Trolox Equivalent Antioxidant Capacity in Berries Using Amperometric Tyrosinase Biosensor Based on Multi-Walled Carbon Nanotubes
Autor: Arbër Frangu, Amir M. Ashrafi, Milan Sýs, Tahir Arbneshi, Radovan Metelka, Vojtěch Adam, Milan Vlček, Lukáš Richtera
Publikováno v: Applied Sciences, Vol 10, Iss 7, p 2497 (2020)
In this contribution, Trolox equivalent antioxidant capacity (TEAC) was determined in various berries using carbon paste tyrosinase biosensor with multi-walled carbon nanotubes (MWCNTs), coated with Nafion® layer. Electrochemical behaviour of the bi
Externí odkaz: https://doaj.org/article/85c49277098a42518642bc6a6eea97fa
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5
Akademický článek
A new amperometric glucose biosensor based on screen printed carbon electrodes with rhenium(IV) - oxide as a mediator
Autor: ALBANA VESELI, AHMET HAJRIZI, TAHIR ARBNESHI, KURT KALCHER
Publikováno v: Journal of Electrochemical Science and Engineering, Vol 2, Iss 4, Pp 199-210 (2012)
Rhenium(IV)-oxide, ReO2, was used as a mediator for carbon paste (CPE) and screen printed carbon (SPCE) electrodes for the catalytic amperometric determination of hydro-gen peroxide, whose overpotential for the reduction could be lowered to -0.1 V vs
Externí odkaz: https://doaj.org/article/1231709dbdfe4fdb92aee7f30e948d83
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6
Akademický článek
Electrochemical Study of Trametes Versicolor Laccase Compatibility to Different Polyphenolic Substrates
Autor: Milan Sýs, Radovan Metelka, Arbër Frangu, Karel Vytřas, Tahir Arbneshi
Publikováno v: Chemosensors, Vol 5, Iss 1, p 9 (2017)
The aim of this electrochemical study was to ascertain which position of hydroxy groups on a benzene ring provides electroactive products after enzymatic oxidation by laccase originating from the Trametes versicolor mushroom, exhibiting intense redox
Externí odkaz: https://doaj.org/article/95c017785f834860bde3152a4872177b
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8
The concentration of phthalates in toys and children's care items in Kosovo
Autor: Tahir Arbneshi, Behxhet Mustafa, Liridon Berisha, Avni Hajdari
Publikováno v: Journal of Environmental Science and Health, Part A. 56:1496-1502
In this study, one hundred and twenty-eight toys and children's care items available in the Kosovo market were analyzed to determine the presence of phthalates and evaluate if the analyzed samples meet the national and EU standards. Toys and children
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f4eb60ab193715e1e6df5ed54d24e34
https://doi.org/10.1080/10934529.2021.2014251
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10
Enhancement Effect of Cetyltrimethylammonium Bromide on Electrochemical Determination of Chlorophenols using a Carbon Paste Electrode
Autor: Tahir Arbneshi, Arsim Maloku, Kurt Kalcher, Liridon Berisha, Granit Jashari
Publikováno v: Journal of Analytical Chemistry. 75:358-365
The electrochemical responses of chlorophenols can be effectively enhanced by using the surfactant cetyltrimethylammonium bromide (CTAB) in combination with a carbon paste electrode (CPE). The influence of CTAB on the electrochemical behavior of hydr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::21fe0e9eada1104c2d0cbe5511d00e20
https://doi.org/10.1134/s1061934820030120
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