Journal
CHROMATOGRAPHIA
Volume 76, Issue 13-14, Pages 861-865Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10337-013-2468-9
Keywords
Gas chromatography-flame ionization detector (GC-FID); Dispersive liquid-liquid microextraction (DLLME); Mercury; Diphenylmercury
Funding
- Ferdowsi University of Mashhad, Iran
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Mercury exists in two forms in environment, inorganic salts and organic compounds. Determination of mercury is very important, due to its health effects. In the present research, diphenylation of mercury using phenylboronic acid as a derivatization reagent was used for the determination of Hg(II) in real water samples. A simple, rapid and cheap method named dispersive liquid-liquid microextraction was used for the extraction of analyte under the following conditions: extraction solvent 16 mu L of carbon tetrachloride, disperser solvent 1 mL of ethanol and sample volume 5 mL. Under the optimal conditions, the enrichment factor for diphenylmercury was 931 and the limit of detection calculated on the basis of five replicates was 0.004 mu g mL(-1). The repeatability of the method expresses as relative standard deviation was 5.1 (n = 6). The linear range was between 0.01 and 10 mu g mL(-1). The performance of the proposed technique was evaluated for the determination of mercury in different environmental water samples.
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