Highly Sensitive Voltammetric Determination of Acrylamide Based on Ibuprofen Capped Mercury Nanoparticles

Highly stable, small-sized and evenly distributed solid mercury nanoparticles capped with ibuprofen (Ibu-HgNPs) were prepared via reduction with hydrazine and capped with ibuprofen as a stabilizing agent. Characterization of Ibu-HgNPs was carried out by UV-Vis spectrophotometry and transmission elec...

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Autores principales:	Sirajuddin, Zulfiqar Ali Tagar, Muhammad Anwar Ul Haq, Muhammad Raza Shah, Mujeeb-ur-Rehman, Syed Tufail Hussain Sherazi, Jiri Barek, Muhammad Siddique Kalhoro
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	mercury nanoparticles ibuprofen square wave voltammetry acrylamide sensor real water samples Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/f8b9fc73703d4f068820cfe6aa68dd02
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spelling	oai:doaj.org-article:f8b9fc73703d4f068820cfe6aa68dd022021-11-11T19:15:15ZHighly Sensitive Voltammetric Determination of Acrylamide Based on Ibuprofen Capped Mercury Nanoparticles10.3390/s212173021424-8220https://doaj.org/article/f8b9fc73703d4f068820cfe6aa68dd022021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7302https://doaj.org/toc/1424-8220Highly stable, small-sized and evenly distributed solid mercury nanoparticles capped with ibuprofen (Ibu-HgNPs) were prepared via reduction with hydrazine and capped with ibuprofen as a stabilizing agent. Characterization of Ibu-HgNPs was carried out by UV-Vis spectrophotometry and transmission electron microscopy (TEM). The prepared Ibu-HgNPs were immobilized onto a glassy carbon electrode (GCE) and used for the first time as the sensing element for voltammetric determination of low concentrations of acrylamide (AA) in aqueous solutions. Various parameters such as the type of supporting electrolyte, voltammetric mode, frequency, deposition time, stirring rate and initial potential were optimized to obtain the highest peak current of AA. The sensor delivered the best results in combination with the square wave voltammetry (SWV) mode, with good repeatability (relative standard deviation (RSD) of 25 repetitions was 1.4% for 1000 ppb AA). The study further revealed that Ibu-HgNPs are strongly adhered to GCE and hence do not contaminate the environment even after several runs. The newly developed AA sensor provides linear calibration dependence in the range of 100–1300 ppb with an R<sup>2</sup> value of 0.996 and limit of detection (LOD) of 8.5 ppb. Negligible interference was confirmed from several organic compounds, cations and anions. The developed sensor was successfully applied for AA determination in various types of environmental real water samples to prove its practical usefulness and applicability.SirajuddinZulfiqar Ali TagarMuhammad Anwar Ul HaqMuhammad Raza ShahMujeeb-ur-RehmanSyed Tufail Hussain SheraziJiri BarekMuhammad Siddique KalhoroMDPI AGarticlemercury nanoparticlesibuprofensquare wave voltammetryacrylamide sensorreal water samplesChemical technologyTP1-1185ENSensors, Vol 21, Iss 7302, p 7302 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	mercury nanoparticles ibuprofen square wave voltammetry acrylamide sensor real water samples Chemical technology TP1-1185
spellingShingle	mercury nanoparticles ibuprofen square wave voltammetry acrylamide sensor real water samples Chemical technology TP1-1185 Sirajuddin Zulfiqar Ali Tagar Muhammad Anwar Ul Haq Muhammad Raza Shah Mujeeb-ur-Rehman Syed Tufail Hussain Sherazi Jiri Barek Muhammad Siddique Kalhoro Highly Sensitive Voltammetric Determination of Acrylamide Based on Ibuprofen Capped Mercury Nanoparticles
description	Highly stable, small-sized and evenly distributed solid mercury nanoparticles capped with ibuprofen (Ibu-HgNPs) were prepared via reduction with hydrazine and capped with ibuprofen as a stabilizing agent. Characterization of Ibu-HgNPs was carried out by UV-Vis spectrophotometry and transmission electron microscopy (TEM). The prepared Ibu-HgNPs were immobilized onto a glassy carbon electrode (GCE) and used for the first time as the sensing element for voltammetric determination of low concentrations of acrylamide (AA) in aqueous solutions. Various parameters such as the type of supporting electrolyte, voltammetric mode, frequency, deposition time, stirring rate and initial potential were optimized to obtain the highest peak current of AA. The sensor delivered the best results in combination with the square wave voltammetry (SWV) mode, with good repeatability (relative standard deviation (RSD) of 25 repetitions was 1.4% for 1000 ppb AA). The study further revealed that Ibu-HgNPs are strongly adhered to GCE and hence do not contaminate the environment even after several runs. The newly developed AA sensor provides linear calibration dependence in the range of 100–1300 ppb with an R<sup>2</sup> value of 0.996 and limit of detection (LOD) of 8.5 ppb. Negligible interference was confirmed from several organic compounds, cations and anions. The developed sensor was successfully applied for AA determination in various types of environmental real water samples to prove its practical usefulness and applicability.
format	article
author	Sirajuddin Zulfiqar Ali Tagar Muhammad Anwar Ul Haq Muhammad Raza Shah Mujeeb-ur-Rehman Syed Tufail Hussain Sherazi Jiri Barek Muhammad Siddique Kalhoro
author_facet	Sirajuddin Zulfiqar Ali Tagar Muhammad Anwar Ul Haq Muhammad Raza Shah Mujeeb-ur-Rehman Syed Tufail Hussain Sherazi Jiri Barek Muhammad Siddique Kalhoro
author_sort	Sirajuddin
title	Highly Sensitive Voltammetric Determination of Acrylamide Based on Ibuprofen Capped Mercury Nanoparticles
title_short	Highly Sensitive Voltammetric Determination of Acrylamide Based on Ibuprofen Capped Mercury Nanoparticles
title_full	Highly Sensitive Voltammetric Determination of Acrylamide Based on Ibuprofen Capped Mercury Nanoparticles
title_fullStr	Highly Sensitive Voltammetric Determination of Acrylamide Based on Ibuprofen Capped Mercury Nanoparticles
title_full_unstemmed	Highly Sensitive Voltammetric Determination of Acrylamide Based on Ibuprofen Capped Mercury Nanoparticles
title_sort	highly sensitive voltammetric determination of acrylamide based on ibuprofen capped mercury nanoparticles
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f8b9fc73703d4f068820cfe6aa68dd02
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Highly Sensitive Voltammetric Determination of Acrylamide Based on Ibuprofen Capped Mercury Nanoparticles

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