A novel derivatisation procedure for inorganic mercury(II) for HPLC analysis |
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Authors: | Fabbri D Trombini C |
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Institution: | (1) Dipartimento di Chimica G. Ciamician, Università di Bologna, via Selmi 2, 40126 Bologna;(2) Laboratorio di Chimica Ambientale, via Marconi 2, 48100 Ravenna, Italy |
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Abstract: | Summary A new procedure for derivatisation of inorganic mercury(II) to diphenylethynylmercury with simultaneous extraction into dichloromethane is proposed. The organomercury derivative is effectively analysed by HPLC using UV detection. The calibration curve is linear over three orders of magnitude (0.02–50 mg L–1 Hg); the detection limit is 0.1 ng Hg. A preliminary study of the effect of potential interfering agents, in particular Cu(II), Zn(II), Cd(II), Pb(II), and cysteine, and applications of the present methodology to real environmental samples are presented. |
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Keywords: | Column liquid chromatography Mercury Diphenylethynylmercury |
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