Rapid and sensitive spectrofluorimetric determination of trace amounts of Hg(II) with o-vanillin-8-aminoquinoline |
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Authors: | F. Yang T. X. Yue K. H. Xu Z. Z. Chen B. Tang |
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Affiliation: | (1) College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China |
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Abstract: | The fluorimetric determination of mercury ions with o-vanillin-8-aminoquinoline (OVAQ) in aqueous solutions was investigated. Hg(II) could react with the fluorescent reagent OVAQ (λex/em = 278/314 nm) to form a nonfluorescent complex in an ethanol-water medium of pH 6.00. The linear range of the proposed method was from 2.5 to 80 μg/L, and the detection limit was 0.80 μg/L. The interferences of 24 foreign ions were also studied. The method was successfully applied to the determination of Hg(II) in sludge. The text was submitted by the authors in English. |
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Keywords: | determination of Hg(II) O-vanillin-8-aminoquinoline spectrofluorimetry quenching |
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