226Ra and228Ra in water column of Peninsular Malaysia: Southern South China Sea

Che Abd. Rahim Mohamed, Siew Yew Nioo, Zaharuddin Ahmad

Research output: Contribution to journalArticle

Abstract

The concentration activities of 226Ra and 228Ra were determined at ten stations around Pulau Redang, Malaysia, where high dissolved activity Of 228Ra was found at the coastal stations. Meanwhile, activities of 226Ra and 228Ra isotopes in the suspended materials were slightly similar with 228Ra/226Ra ratio ranged from 0.88-1.86. High distribution coefficient (Kd) of radium isotopes found around Pulau Redang indicating that radium are strongly absorbed onto particulate phase. The Kd values of 226Ra and 228Ra were ranged from 0.78 × 105 L g-1 to 5.56 × 105 L g-1 and from 0.21 × 10 5 L g-1 to 1.86 × 105 L g-1, respectively. The impact caused by the amount of suspended particle material (< 10 mg L-1) on the particle concentration was not found during this study.

Original languageEnglish
Pages (from-to)4291-4296
Number of pages6
JournalAsian Journal of Chemistry
Volume19
Issue number6
Publication statusPublished - Nov 2007

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Radium
Isotopes
Water

Keywords

  • Ra,Ra
  • Dissolved phase
  • Distribution coefficient
  • Suspended particulate matter

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

226Ra and228Ra in water column of Peninsular Malaysia : Southern South China Sea. / Mohamed, Che Abd. Rahim; Nioo, Siew Yew; Ahmad, Zaharuddin.

In: Asian Journal of Chemistry, Vol. 19, No. 6, 11.2007, p. 4291-4296.

Research output: Contribution to journalArticle

Mohamed, Che Abd. Rahim ; Nioo, Siew Yew ; Ahmad, Zaharuddin. / 226Ra and228Ra in water column of Peninsular Malaysia : Southern South China Sea. In: Asian Journal of Chemistry. 2007 ; Vol. 19, No. 6. pp. 4291-4296.
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