Bismuth-modified hydroxyapatite carbon electrode for heavy metal detection in biomatrices

Micro-analytical based sensors with complex biomatrices such as blood, urine, or saliva are of increasing interest in health-care sector because of their sensitivity, selectively and simplicity. A modified carbon electrode with hydroxyapatite (HAp) and Bismuth (II) was developed to detect Pb2+ conce...

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Main Authors: Ajab, H., Khan, A.A.A., Dennis, J.O., Abdullah, M.A.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.31999 /
Published: Trans Tech Publications Ltd 2014
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84914104721&doi=10.4028%2fwww.scientific.net%2fAMM.625.813&partnerID=40&md5=e67396e5f831392acb71d85463c26760
http://eprints.utp.edu.my/31999/
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spelling utp-eprints.319992022-03-29T04:04:55Z Bismuth-modified hydroxyapatite carbon electrode for heavy metal detection in biomatrices Ajab, H. Khan, A.A.A. Dennis, J.O. Abdullah, M.A. Micro-analytical based sensors with complex biomatrices such as blood, urine, or saliva are of increasing interest in health-care sector because of their sensitivity, selectively and simplicity. A modified carbon electrode with hydroxyapatite (HAp) and Bismuth (II) was developed to detect Pb2+ concentration in blood sera from healthy persons. Square wave anodic stripping voltammetry was used for the detection of Pb2+ by the interacting capability of the Bi film and HAp on the electrode surface with the optimised parameters of deposition time 240sec, deposition potential �1.0 V in 0.1M acetate buffer followed by square wave potential scan from -1.0 V to -0.2V. Bi film deposited HAp-CME showed attractive electrochemical characteristics with high sensitivity for Pb2+. Clear current peaks for different Pb2+ concentrations were observed around -0.55V, with favourable signal-to-background ratio, and comparatively free from oxygen interferences. © 2014 Trans Tech Publications, Switzerland. Trans Tech Publications Ltd 2014 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84914104721&doi=10.4028%2fwww.scientific.net%2fAMM.625.813&partnerID=40&md5=e67396e5f831392acb71d85463c26760 Ajab, H. and Khan, A.A.A. and Dennis, J.O. and Abdullah, M.A. (2014) Bismuth-modified hydroxyapatite carbon electrode for heavy metal detection in biomatrices. Applied Mechanics and Materials, 625 . pp. 813-817. http://eprints.utp.edu.my/31999/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Micro-analytical based sensors with complex biomatrices such as blood, urine, or saliva are of increasing interest in health-care sector because of their sensitivity, selectively and simplicity. A modified carbon electrode with hydroxyapatite (HAp) and Bismuth (II) was developed to detect Pb2+ concentration in blood sera from healthy persons. Square wave anodic stripping voltammetry was used for the detection of Pb2+ by the interacting capability of the Bi film and HAp on the electrode surface with the optimised parameters of deposition time 240sec, deposition potential �1.0 V in 0.1M acetate buffer followed by square wave potential scan from -1.0 V to -0.2V. Bi film deposited HAp-CME showed attractive electrochemical characteristics with high sensitivity for Pb2+. Clear current peaks for different Pb2+ concentrations were observed around -0.55V, with favourable signal-to-background ratio, and comparatively free from oxygen interferences. © 2014 Trans Tech Publications, Switzerland.
format Article
author Ajab, H.
Khan, A.A.A.
Dennis, J.O.
Abdullah, M.A.
spellingShingle Ajab, H.
Khan, A.A.A.
Dennis, J.O.
Abdullah, M.A.
Bismuth-modified hydroxyapatite carbon electrode for heavy metal detection in biomatrices
author_sort Ajab, H.
title Bismuth-modified hydroxyapatite carbon electrode for heavy metal detection in biomatrices
title_short Bismuth-modified hydroxyapatite carbon electrode for heavy metal detection in biomatrices
title_full Bismuth-modified hydroxyapatite carbon electrode for heavy metal detection in biomatrices
title_fullStr Bismuth-modified hydroxyapatite carbon electrode for heavy metal detection in biomatrices
title_full_unstemmed Bismuth-modified hydroxyapatite carbon electrode for heavy metal detection in biomatrices
title_sort bismuth-modified hydroxyapatite carbon electrode for heavy metal detection in biomatrices
publisher Trans Tech Publications Ltd
publishDate 2014
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84914104721&doi=10.4028%2fwww.scientific.net%2fAMM.625.813&partnerID=40&md5=e67396e5f831392acb71d85463c26760
http://eprints.utp.edu.my/31999/
_version_ 1741197672652472320
score 11.62408

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