Artículo
Total reflection X-ray fluorescence as a fast multielemental technique for human placenta sample analysis
Marguí, E.; Ricketts, Phylicia; Fletcher, H.; Karydas, A.G.; Migliori, A.; Leani, Juan Jose
; Hidalgo, M.; Queralt, Ignacio; Voutchkov, M.
![Icon](/themes/CONICETDigital/images/conicet.png)
Fecha de publicación:
04/2017
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Spectrochimica Acta Part B: Atomic Spectroscopy
ISSN:
0584-8547
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In the present contribution, benchtop total reflection X-ray fluorescence spectrometry (TXRF) has been evaluated as a cost-effective multielemental analytical technique for human placenta analysis. An easy and rapid sample preparation consisting of suspending 50 mg of sample in 1 mL of a Triton 1% solution in deionized water showed to be the most suitable for this kind of samples. However, for comparison purposes, an acidic microwave acidic digestion procedure was also applied. For both sample treatment methodologies, limits of detection for most elements were in the low mg/kg level. Accurate and precise results were obtained using internal standardization as quantification approach and applying a correction factor to compensate for absorption effects. The correction factor was based on the proportional ratio between the slurry preparation results and those obtained for the analysis of a set of human placenta samples analysed by microwave acidic digestion and ICP-AES analysis. As a study case, the developed TXRF methodology was applied for multielemental analysis (K, Ca, Fe, Cu, Zn, As, Se, Br, Rb and Sr) of several healthy women's placenta samples from two regions in Jamaica.
Palabras clave:
MULTIELEMENTAL ANALYSIS
,
PLACENTA
,
SLURRY
,
SUSPENSION
,
SYNCHROTRON
,
TXRF
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IFEG)
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Citación
Marguí, E.; Ricketts, Phylicia; Fletcher, H.; Karydas, A.G.; Migliori, A.; et al.; Total reflection X-ray fluorescence as a fast multielemental technique for human placenta sample analysis; Pergamon-Elsevier Science Ltd; Spectrochimica Acta Part B: Atomic Spectroscopy; 130; 4-2017; 53-59
Compartir
Altmétricas