Journal
MICROCHIMICA ACTA
Volume 167, Issue 3-4, Pages 289-295Publisher
SPRINGER WIEN
DOI: 10.1007/s00604-009-0250-3
Keywords
UV-induced chemical vapour generation; Speciation; Mercury; High performance liquid chromatography; Atomic fluorescence spectrometry; Mercaptoethanol
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Funding
- National Natural Science Foundation of China [20621703, 20577057]
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Speciation of mercury was accomplished by using a simple interface with photo-induced chemical vapour generation in a high performance liquid chromatography-atomic fluorescence spectrometry (HPLC-AFS) hyphenated system. Acetic acid and 2-mercaptoethanol in the mobile phase were used as photochemical reagent. The operating parameters were optimized to give limits of detection of 0.53 A mu g L-1, 0.22 A mu g L-1, 0.18 A mu g L-1 and 0.25 A mu g L-1 for inorganic mercury, methylmercury, ethylmercury and phenylmercury, respectively. The method was validated with the certified reference material DORM-2 and applied to the analysis of seafood samples. The HPLC-AFS hyphenated system is simple, environmentally friendly, and represents an attractive alternative to the conventional peroxothiosulfate-borohydride method.
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