RT Journal Article
T1 Simultaneous speciation and preconcentration of ultra trace concentrations of mercury and selenium species in environmental and biological samples by hollow fiber liquid phase microextraction prior to high performance liquid chromatography coupled to inductively coupled plasma mass spectrometry
A1 Moreno Roldán, Fernando
A1 García Barrera, Tamara
A1 Gómez Ariza, José Luis
AB Nowadays, hollow fiber membrane extraction techniques are widely used due to the high enrichment factors obtained with many different types of analytes and samples. In this paper, we propose a new analytical method that allows the simultaneous extraction of methylmercury, inorganic mercury and Se4+ and determination by high performance liquid chromatography coupled to inductively coupled plasma mass spectrometry (HPLC–ICP-MS). The detection limits obtained are very low (110–230 ng/L) with relative standard deviations below 15% for all the analytes and averaged recoveries in fortified samples in the range of 71–99%. The precision of the analytical method is very good which overcomes one of the most important shortcomings of membrane extraction techniques. Several variables were studied to get optimal extraction conditions for the analytes. This method has been validated with real world samples such as water (tap, river and estuarine) and human blood plasma.
PB Elsevier
SN 0021-9673
SN 1873-3778 (electrónico)
YR 2013
FD 2013
LK http://hdl.handle.net/10272/14740
UL http://hdl.handle.net/10272/14740
LA eng
NO Moreno, F., García-Barrera, T., & Gómez-Ariza, J. L. (2013). Simultaneous speciation and preconcentration of ultra trace concentrations of mercury and selenium species in environmental and biological samples by hollow fiber liquid phase microextraction prior to high performance liquid chromatography coupled to inductively coupled plasma mass spectrometry. Journal of Chromatography A, 1300, 43-50. https://doi.org/10.1016/j.chroma.2013.02.083
NO The authors thank the Spanish "Ministerio de Educacion y Ciencia (MEC)" project CTM2006-08960-C02-01/TECNO and the projects P08-FQM-03554 and P09-FQM-4659 from the "Consejeria de Innovacion Ciencia y Empresa (Junta de Andalucia)" for funding.
DS Repositorio Institucional de la Universidad de Huelva
RD 29 may 2026