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Spectrophotometric determination of mercury with Iodide and Rhodamine B
Au Yoong, Yow Loo1, Yap, Pei Lay2, Muralithran G. Kutty3, Timpe, Olaf4, Behrens, Malte5, Sharifah Abd Hamid6.
Spectrophotometric methods for the trace amount determination of Hg(II) via extraction and polyvinylalcohol (PVAl) water stabilization was explored. The methods are based on the formation of ion-association complex of Hg(II) with Rhodamine B, [(HgI4)2-][(Rhodamine B)+]2 in highly acidic solution. Extraction using benzene showed the Beer’s law was obeyed for mercury(II) in the range of 5 to 27 μg Hg(II) / 20 mL of sample and molar absorptivity, ε = 17.68 × 104 L mole-1cm-1. For polyvinylalcohol (PVAl) stabilization method, Beer’s law showed the validity range of 10 to 120 μg Hg(II) / 10 mL of sample and molar absorptivity, ε = 16.84 × 103 L mole-1cm-1. The benzene-extraction method has been applied in assessing the performance of copper sulfide ion-exchanger in removing Hg(II). The result was comparable to the result obtained using cold vapor atomic absorption spectrometry (CVAAS).
Affiliation:
- University of Malaya, Malaysia
- University of Malaya, Malaysia
- University of Malaya, Malaysia
- Fritz-Haber-Institut der Max-Planck, Germany
- Fritz-Haber-Institut der Max-Planck, Germany
- University of Malaya, Malaysia
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MyJurnal (2021) |
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6 |
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0.000 |
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0 |
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Web of Science (SCIE - Science Citation Index Expanded) |
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JCR (1.009) |
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Q4 (Multidisciplinary Sciences) |
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JCI (0.15) |
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Scopus 2020 |
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CiteScore (1.4) |
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Q2 (Multidisciplinary) |
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SJR (0.251) |
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