Efficient Microwave-Assisted Extraction of Nitrites from Cured Meat and Their Voltammetric Detection at Chemically Modified Electrodes Based on Hexamethyl-p-Terphenyl Poly(methylatedbenzimidazolium) Incorporating Nitrogen-Doped Graphite Nanoplatelets

We describe a fast and reliable procedure for the efficient extraction of nitrites in cured meat using microwave-assisted heat and report their in situ determination via voltammetry using an anion-exchanger ionene, hexamethyl-p-terphenyl poly(benzimidazolium) (HMT-PMBI), and nitrogen-doped graphite...

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Autores principales:	Sandra Hernandez-Aldave, Afshin Tarat, Paolo Bertoncello
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	chemically modified electrodes voltammetry sensors nitrites cured meat microwave-assisted heat Biochemistry QD415-436
Acceso en línea:	https://doaj.org/article/0c4a23ad54274024bb8b5d7adfd4b121
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spelling	oai:doaj.org-article:0c4a23ad54274024bb8b5d7adfd4b1212021-11-25T17:13:43ZEfficient Microwave-Assisted Extraction of Nitrites from Cured Meat and Their Voltammetric Detection at Chemically Modified Electrodes Based on Hexamethyl-p-Terphenyl Poly(methylatedbenzimidazolium) Incorporating Nitrogen-Doped Graphite Nanoplatelets10.3390/chemosensors91103252227-9040https://doaj.org/article/0c4a23ad54274024bb8b5d7adfd4b1212021-11-01T00:00:00Zhttps://www.mdpi.com/2227-9040/9/11/325https://doaj.org/toc/2227-9040We describe a fast and reliable procedure for the efficient extraction of nitrites in cured meat using microwave-assisted heat and report their in situ determination via voltammetry using an anion-exchanger ionene, hexamethyl-p-terphenyl poly(benzimidazolium) (HMT-PMBI), and nitrogen-doped graphite nanoplatelets (NGNPs). Cyclic voltammetry and chronoamperometry were utilized to evaluate the concentration of the redox mediator within the film and apparent diffusion coefficient. To investigate the suitability of the composite material for sensing applications, HMT-PMBI/NGNPs were tested for their detection of nitrite in bacon samples without the need of any pretreatments or dilutions. HMT-PMBI/NGNP coated electrodes showed enhanced sensitivity in the detection of nitrite ions in bacon with a limit of detection (LoD) of 0.64 µM, sensitivity 0.52 µA µM<sup>−1</sup> cm<sup>−2</sup>, and operating in a linear range between 1–300 μM. The results highlight that the determination of nitrites in cured meat using microwave extraction is in good agreement with standard procedures such as the ISO 2918 and the AOAC International 973.31 methods.Sandra Hernandez-AldaveAfshin TaratPaolo BertoncelloMDPI AGarticlechemically modified electrodesvoltammetrysensorsnitritescured meatmicrowave-assisted heatBiochemistryQD415-436ENChemosensors, Vol 9, Iss 325, p 325 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	chemically modified electrodes voltammetry sensors nitrites cured meat microwave-assisted heat Biochemistry QD415-436
spellingShingle	chemically modified electrodes voltammetry sensors nitrites cured meat microwave-assisted heat Biochemistry QD415-436 Sandra Hernandez-Aldave Afshin Tarat Paolo Bertoncello Efficient Microwave-Assisted Extraction of Nitrites from Cured Meat and Their Voltammetric Detection at Chemically Modified Electrodes Based on Hexamethyl-p-Terphenyl Poly(methylatedbenzimidazolium) Incorporating Nitrogen-Doped Graphite Nanoplatelets
description	We describe a fast and reliable procedure for the efficient extraction of nitrites in cured meat using microwave-assisted heat and report their in situ determination via voltammetry using an anion-exchanger ionene, hexamethyl-p-terphenyl poly(benzimidazolium) (HMT-PMBI), and nitrogen-doped graphite nanoplatelets (NGNPs). Cyclic voltammetry and chronoamperometry were utilized to evaluate the concentration of the redox mediator within the film and apparent diffusion coefficient. To investigate the suitability of the composite material for sensing applications, HMT-PMBI/NGNPs were tested for their detection of nitrite in bacon samples without the need of any pretreatments or dilutions. HMT-PMBI/NGNP coated electrodes showed enhanced sensitivity in the detection of nitrite ions in bacon with a limit of detection (LoD) of 0.64 µM, sensitivity 0.52 µA µM<sup>−1</sup> cm<sup>−2</sup>, and operating in a linear range between 1–300 μM. The results highlight that the determination of nitrites in cured meat using microwave extraction is in good agreement with standard procedures such as the ISO 2918 and the AOAC International 973.31 methods.
format	article
author	Sandra Hernandez-Aldave Afshin Tarat Paolo Bertoncello
author_facet	Sandra Hernandez-Aldave Afshin Tarat Paolo Bertoncello
author_sort	Sandra Hernandez-Aldave
title	Efficient Microwave-Assisted Extraction of Nitrites from Cured Meat and Their Voltammetric Detection at Chemically Modified Electrodes Based on Hexamethyl-p-Terphenyl Poly(methylatedbenzimidazolium) Incorporating Nitrogen-Doped Graphite Nanoplatelets
title_short	Efficient Microwave-Assisted Extraction of Nitrites from Cured Meat and Their Voltammetric Detection at Chemically Modified Electrodes Based on Hexamethyl-p-Terphenyl Poly(methylatedbenzimidazolium) Incorporating Nitrogen-Doped Graphite Nanoplatelets
title_full	Efficient Microwave-Assisted Extraction of Nitrites from Cured Meat and Their Voltammetric Detection at Chemically Modified Electrodes Based on Hexamethyl-p-Terphenyl Poly(methylatedbenzimidazolium) Incorporating Nitrogen-Doped Graphite Nanoplatelets
title_fullStr	Efficient Microwave-Assisted Extraction of Nitrites from Cured Meat and Their Voltammetric Detection at Chemically Modified Electrodes Based on Hexamethyl-p-Terphenyl Poly(methylatedbenzimidazolium) Incorporating Nitrogen-Doped Graphite Nanoplatelets
title_full_unstemmed	Efficient Microwave-Assisted Extraction of Nitrites from Cured Meat and Their Voltammetric Detection at Chemically Modified Electrodes Based on Hexamethyl-p-Terphenyl Poly(methylatedbenzimidazolium) Incorporating Nitrogen-Doped Graphite Nanoplatelets
title_sort	efficient microwave-assisted extraction of nitrites from cured meat and their voltammetric detection at chemically modified electrodes based on hexamethyl-p-terphenyl poly(methylatedbenzimidazolium) incorporating nitrogen-doped graphite nanoplatelets
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/0c4a23ad54274024bb8b5d7adfd4b121
work_keys_str_mv	AT sandrahernandezaldave efficientmicrowaveassistedextractionofnitritesfromcuredmeatandtheirvoltammetricdetectionatchemicallymodifiedelectrodesbasedonhexamethylpterphenylpolymethylatedbenzimidazoliumincorporatingnitrogendopedgraphitenanoplatelets AT afshintarat efficientmicrowaveassistedextractionofnitritesfromcuredmeatandtheirvoltammetricdetectionatchemicallymodifiedelectrodesbasedonhexamethylpterphenylpolymethylatedbenzimidazoliumincorporatingnitrogendopedgraphitenanoplatelets AT paolobertoncello efficientmicrowaveassistedextractionofnitritesfromcuredmeatandtheirvoltammetricdetectionatchemicallymodifiedelectrodesbasedonhexamethylpterphenylpolymethylatedbenzimidazoliumincorporatingnitrogendopedgraphitenanoplatelets
_version_	1718412572500164608

Efficient Microwave-Assisted Extraction of Nitrites from Cured Meat and Their Voltammetric Detection at Chemically Modified Electrodes Based on Hexamethyl-p-Terphenyl Poly(methylatedbenzimidazolium) Incorporating Nitrogen-Doped Graphite Nanoplatelets

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