INVESTIGADORES
GIL Raul Andres
artículos
Título:
Slurry sampling in serum blood for mercury determination by CV-AFS
Autor/es:
PEDRO R. ARANDA; RAÚL A. GIL; SUSANA MOYANO; IRMA E. DE VITO; LUIS D. MARTINEZ
Revista:
JOURNAL OF HAZARDOUS MATERIALS.
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2009 vol. 161 p. 1399 - 1403
ISSN:
0304-3894
Resumen:
The
heavy metal mercury (Hg) is a neurotoxin known to have a serious health
impact even at relatively low concentrations. A slurry method was
developed for the sensitive and precise determination of mercury in
human serum blood samples by cold vapor generation coupled to atomic
fluorescence spectrometry (CV-AFS). All variables related to the slurry
formation were studied. The optimal hydrochloric concentration and
tin(II) chloride concentration for CV generation were evaluated.
Calibration within the range 0.1-10 μg L-1 Hg was performed
with the standard addition method, and compared with an external
calibration. Additionally, the reliability of the results obtained was
evaluated by analyzing mercury in the same samples, but submitted to
microwave-assisted digestion method. The limit of detection was
calculated as 25 ng L-1 and the relative standard deviation was 3.9% at levels around of 0.4 μg L-1 Hg