Spectrophotometric method for hg(ii) determination in aqueous environment using zinc-dithizonate complex | Zendy

Musa Ahmad Ahmad | Zendy; Elya Sufliza Marsom | Zendy; Harun Hamzah | Zendy

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Spectrophotometric method for hg(ii) determination in aqueous environment using zinc-dithizonate complex

Author(s) -

Musa Ahmad Ahmad,

Elya Sufliza Marsom,

Harun Hamzah

Publication year - 2017

Publication title -

asean journal on science and technology for development

Language(s) - English

Resource type - Journals

eISSN - 2224-9028

pISSN - 0217-5460

DOI - 10.29037/ajstd.194

Subject(s) - zinc , absorbance , aqueous solution , chemistry , relative standard deviation , ion , complex formation , spectrophotometry , inorganic chemistry , analytical chemistry (journal) , chromatography , detection limit , organic chemistry

This article described the use of zinc-dithizonate for spectrophotometric determination of Hg(II) in aqueous environment. Zinc dithizonate was found to react selectively with Hg(II) to give a reddish yellow complex with optimum absorbance at pH 1.0. This complex was found to be useful for spectrophotometric determination of aqueous Hg(II) in the concentration range of 1.0 - 12.0 ppm. This method was also found to be reproducible with calculated relative standard deviation, RSD of 1.08%. At 1:1 mole ratio, interfering ions such as CH COO·, Pb2+ and Ag+ were found to interfere at degree 3 of interference of more than 10.0%.

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