Unsur nadir bumi dalam teras sedimen diperolehi dari pelabuhan Tanjung Pelepas dan Sedili, Johor sebagai penunjuk pencemaran

Translated title of the contribution: Rare earth elements in sediment cores obtained from the ports of Tanjung Pelepas and Sedili, Johor as pollution indicators

Wai Seong Koh, Che Abd. Rahim Mohamed

Research output: Contribution to journalArticle

Abstract

Sediment core samples obtained from the Port of Sedili and Tanjung Pelepas, Johor were slice into layers with intervals of 3 cm to estimate the contamination levels of rare earth elements at harbour areas. An analysis of rare earth elements (REEs) including La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu were conducted using the Inductively Couple Plasma Mass Spectrometry. The measured concentration of REEs normalized with Fe as an enrichment factors signal. A positive value ratio of Ce/Ce* anomalies (1.10 - 1.18) was shown at the Port of Sedili whereas at the Port of Tanjung Pelepas showed negative Ce/Ce* anomaly values (0.87 - 0.96). However, both stations showed weak positive Eu/Eu* anomaly values of 0.76 - 0.84 (Port of Sedili) and 0.96 - 1.0 (Port of Tanjung Pelepas). Fractionation index was also using to define the relative behaviour of LREEs to HREEs by the ratio of La/Ybn. The results of this study support the proposition to use REEs as an indicator of pollution.

Original languageMalay
Pages (from-to)444-450
Number of pages7
JournalMalaysian Journal of Analytical Sciences
Volume23
Issue number3
DOIs
Publication statusPublished - 1 Jan 2019

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Rare earth elements
Sediments
Pollution
Core samples
Fractionation
Ports and harbors
Mass spectrometry
Contamination
Plasmas

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

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title = "Unsur nadir bumi dalam teras sedimen diperolehi dari pelabuhan Tanjung Pelepas dan Sedili, Johor sebagai penunjuk pencemaran",
abstract = "Sediment core samples obtained from the Port of Sedili and Tanjung Pelepas, Johor were slice into layers with intervals of 3 cm to estimate the contamination levels of rare earth elements at harbour areas. An analysis of rare earth elements (REEs) including La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu were conducted using the Inductively Couple Plasma Mass Spectrometry. The measured concentration of REEs normalized with Fe as an enrichment factors signal. A positive value ratio of Ce/Ce* anomalies (1.10 - 1.18) was shown at the Port of Sedili whereas at the Port of Tanjung Pelepas showed negative Ce/Ce* anomaly values (0.87 - 0.96). However, both stations showed weak positive Eu/Eu* anomaly values of 0.76 - 0.84 (Port of Sedili) and 0.96 - 1.0 (Port of Tanjung Pelepas). Fractionation index was also using to define the relative behaviour of LREEs to HREEs by the ratio of La/Ybn. The results of this study support the proposition to use REEs as an indicator of pollution.",
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author = "Koh, {Wai Seong} and Mohamed, {Che Abd. Rahim}",
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AU - Mohamed, Che Abd. Rahim

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AB - Sediment core samples obtained from the Port of Sedili and Tanjung Pelepas, Johor were slice into layers with intervals of 3 cm to estimate the contamination levels of rare earth elements at harbour areas. An analysis of rare earth elements (REEs) including La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu were conducted using the Inductively Couple Plasma Mass Spectrometry. The measured concentration of REEs normalized with Fe as an enrichment factors signal. A positive value ratio of Ce/Ce* anomalies (1.10 - 1.18) was shown at the Port of Sedili whereas at the Port of Tanjung Pelepas showed negative Ce/Ce* anomaly values (0.87 - 0.96). However, both stations showed weak positive Eu/Eu* anomaly values of 0.76 - 0.84 (Port of Sedili) and 0.96 - 1.0 (Port of Tanjung Pelepas). Fractionation index was also using to define the relative behaviour of LREEs to HREEs by the ratio of La/Ybn. The results of this study support the proposition to use REEs as an indicator of pollution.

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