Spectrophotometric determination of erbium using kojic acid dye in different rare earth concentrates

Spectrophotometric determination of erbium using kojic acid dye in different rare earth concentrates

A sensitive and selective spectrophotometric method was studied for the determination of erbium (Er) with kojic acid dye (koj) and cetylpyridinium chloride (CPC) as a cationic surfactant from Egyptian monazite and xenotime concentrates using third derivative spectrophotometry. The calibration curve...

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Main Authors: A.A. Abdou, S.A. Abo-El-Enein, H.K. Fouad, N.A. Fattah, E.M. El Desouky
Format: Article
Language:English
Published: Elsevier 2018-12-01
Series:Egyptian Journal of Petroleum
Online Access:http://www.sciencedirect.com/science/article/pii/S1110062117302659
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spelling doaj-f4a7b9f2267545429beb25108fb83b512020-11-25T00:10:21ZengElsevierEgyptian Journal of Petroleum1110-06212018-12-01274739745Spectrophotometric determination of erbium using kojic acid dye in different rare earth concentratesA.A. Abdou0S.A. Abo-El-Enein1H.K. Fouad2N.A. Fattah3E.M. El Desouky4Nuclear Materials Authority, P.O. Box 530 El Maadi, Cairo, Egypt; Corresponding author.Faculty of Science, Ain shams University, EgyptNuclear Materials Authority, P.O. Box 530 El Maadi, Cairo, EgyptNuclear Materials Authority, P.O. Box 530 El Maadi, Cairo, EgyptNuclear Materials Authority, P.O. Box 530 El Maadi, Cairo, EgyptA sensitive and selective spectrophotometric method was studied for the determination of erbium (Er) with kojic acid dye (koj) and cetylpyridinium chloride (CPC) as a cationic surfactant from Egyptian monazite and xenotime concentrates using third derivative spectrophotometry. The calibration curve was linear from 1 to 150 µg/mL erbium. The influence of various parameters and reaction conditions for optimum complex formation were investigated. The relative standard deviation for determination of 1 µg/mL erbium was found to be 1.5 after 5 repeated determinations with percentage error for Er determination from monazite and xenotime concentrates 6.4% and 4.48% respectively. The molar absorptivity of conventional and third derivative spectrum were 0.14 × 103 M−1 cm−1 and 0.13 × 103 M−1 cm−1 respectively and the detection limit was 1 µg/mL. Keywords: Erbium, Kojic acid dye, Cetylpyridinium chloride, Egyptian monazite, Xenotimehttp://www.sciencedirect.com/science/article/pii/S1110062117302659
collection DOAJ
language English
format Article
sources DOAJ
author A.A. Abdou
S.A. Abo-El-Enein
H.K. Fouad
N.A. Fattah
E.M. El Desouky
spellingShingle A.A. Abdou
S.A. Abo-El-Enein
H.K. Fouad
N.A. Fattah
E.M. El Desouky
Spectrophotometric determination of erbium using kojic acid dye in different rare earth concentrates
Egyptian Journal of Petroleum
author_facet A.A. Abdou
S.A. Abo-El-Enein
H.K. Fouad
N.A. Fattah
E.M. El Desouky
author_sort A.A. Abdou
title Spectrophotometric determination of erbium using kojic acid dye in different rare earth concentrates
title_short Spectrophotometric determination of erbium using kojic acid dye in different rare earth concentrates
title_full Spectrophotometric determination of erbium using kojic acid dye in different rare earth concentrates
title_fullStr Spectrophotometric determination of erbium using kojic acid dye in different rare earth concentrates
title_full_unstemmed Spectrophotometric determination of erbium using kojic acid dye in different rare earth concentrates
title_sort spectrophotometric determination of erbium using kojic acid dye in different rare earth concentrates
publisher Elsevier
series Egyptian Journal of Petroleum
issn 1110-0621
publishDate 2018-12-01
description A sensitive and selective spectrophotometric method was studied for the determination of erbium (Er) with kojic acid dye (koj) and cetylpyridinium chloride (CPC) as a cationic surfactant from Egyptian monazite and xenotime concentrates using third derivative spectrophotometry. The calibration curve was linear from 1 to 150 µg/mL erbium. The influence of various parameters and reaction conditions for optimum complex formation were investigated. The relative standard deviation for determination of 1 µg/mL erbium was found to be 1.5 after 5 repeated determinations with percentage error for Er determination from monazite and xenotime concentrates 6.4% and 4.48% respectively. The molar absorptivity of conventional and third derivative spectrum were 0.14 × 103 M−1 cm−1 and 0.13 × 103 M−1 cm−1 respectively and the detection limit was 1 µg/mL. Keywords: Erbium, Kojic acid dye, Cetylpyridinium chloride, Egyptian monazite, Xenotime
url http://www.sciencedirect.com/science/article/pii/S1110062117302659
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