INVESTIGADORES
LITTER Marta Irene
artículos
Título:
Detection of mercury species by HPLC using 2-mercaptopropionic acid as complex agent.
Autor/es:
E.M. DE LA FOURNIÈRE; M.I. LITTER; E.A. GAUTIER
Revista:
Journal of the Argentine Chemical Society
Editorial:
ASOCIACIÓN QUÍMICA ARGENTINA
Referencias:
Lugar: Buenos Aires; Año: 2013
ISSN:
0365-0375
Resumen:
A new HPLC method to detect mercurial species, useful in the treatment of phenylmercuric acetate and chloride by TiO2-heterogeneous photocatalysis under UV irradiation, has been developed. The method uses simple mercury complexation with 2-mercaptopropionic acid and UV detection. The initial phenylmercury salt, together with inorganic mercury (II) and phenol, products of the photocatalytic process, as well as methylmercury and ethylmercury, were detected and quantified. The method is rapid and can be used for mercury speciation in general. Linearity was observed in the 0.1-50 mg L-1 range, except for inorganic mercury, for which it was in the 0.1-25 mg L-1 range. The detection limits were 108 μg L-1 for Hg2+, 39 μg L-1 for CH3Hg+, 36 μg L-1 for C6H5OH, 42 μg L-1 for C2H5Hg+ and 50 μg L-1 for PhHg+. Possible interferences have been also analyzed.
