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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 Gr...

Sandra Hernandez Aldave, Afshin Tarat, Paolo Bertoncello Orcid Logo

Chemosensors, Volume: 9, Issue: 11, Start page: 325

Swansea University Authors: Sandra Hernandez Aldave, Paolo Bertoncello Orcid Logo

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DOI (Published version): 10.3390/chemosensors9110325

Abstract

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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Published in: Chemosensors
ISSN: 2227-9040
Published: MDPI AG 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa58732
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spelling 2021-12-06T17:44:48.7797505 v2 58732 2021-11-22 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 3c2500b52ca560852fb4b9b1d2cbf4a2 Sandra Hernandez Aldave Sandra Hernandez Aldave true false ad352842aa5fe9c1947bd24ff61816c8 0000-0002-6557-7885 Paolo Bertoncello Paolo Bertoncello true false 2021-11-22 FGSEN 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−1 cm−2, 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. Journal Article Chemosensors 9 11 325 MDPI AG 2227-9040 chemically modified electrodes, voltammetry, sensors, nitrites, cured meat, microwave-assisted heat 19 11 2021 2021-11-19 10.3390/chemosensors9110325 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University Knowledge Economy Skills PhD Scholarship (KESS2) under the Welsh Government’s European Social Fund (ESF) convergence programme for Wales and the Valleys. 2021-12-06T17:44:48.7797505 2021-11-22T10:53:33.8281273 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Sandra Hernandez Aldave 1 Afshin Tarat 2 Paolo Bertoncello 0000-0002-6557-7885 3 58732__21619__51fb328dce6743de9f46602e9c0b247a.pdf chemosensors-09-00325.pdf 2021-11-22T10:53:33.8280678 Output 2044309 application/pdf Version of Record true This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited true eng https://creativecommons.org/licenses/by/4.0/
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
spellingShingle 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
Sandra Hernandez Aldave
Paolo Bertoncello
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
author_id_str_mv 3c2500b52ca560852fb4b9b1d2cbf4a2
ad352842aa5fe9c1947bd24ff61816c8
author_id_fullname_str_mv 3c2500b52ca560852fb4b9b1d2cbf4a2_***_Sandra Hernandez Aldave
ad352842aa5fe9c1947bd24ff61816c8_***_Paolo Bertoncello
author Sandra Hernandez Aldave
Paolo Bertoncello
author2 Sandra Hernandez Aldave
Afshin Tarat
Paolo Bertoncello
format Journal article
container_title Chemosensors
container_volume 9
container_issue 11
container_start_page 325
publishDate 2021
institution Swansea University
issn 2227-9040
doi_str_mv 10.3390/chemosensors9110325
publisher MDPI AG
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
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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−1 cm−2, 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.
published_date 2021-11-19T04:15:30Z
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