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Artículo

Automatic flow-batch system for cold vapor atomic absorption spectroscopy determination of mercury in honey from Argentina using online sample treatment

Dominguez, Marina AlejandraIcon ; Grunhut, MarcosIcon ; Pistonesi, Marcelo Fabian; Di Nezio, Maria Susana; Centurión, María Eugenia
Fecha de publicación: 05/2012
Editorial: American Chemical Society
Revista: Journal of Agricultural and Food Chemistry
ISSN: 0021-8561
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Química Analítica

Resumen

An automatic flow-batch system that includes two borosilicate glass chambers to perform sample digestion and cold vapor atomic absorption spectroscopy determination of mercury in honey samples was designed. The sample digestion was performed by using a low-cost halogen lamp to obtain the optimum temperature. Optimization of the digestion procedure was done using a Box-Behnken experimental design. A linear response was observed from 2.30 to 11.20 μg Hg L-1. The relative standard deviation was 3.20% (n = 11, 6.81 μg Hg L-1), the sample throughput was 4 sample h -1, and the detection limit was 0.68 μg Hg L-1. The obtained results with the flow-batch method are in good agreement with those obtained with the reference method. The flow-batch system is simple, allows the use of both chambers simultaneously, is seen as a promising methodology for achieving green chemistry goals, and is a good proposal to improving the quality control of honey.
Palabras clave: AUTOMATIZATION , FLOW-BATCH , HONEY , MERCURY
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/96956
URL: https://pubs.acs.org/doi/10.1021/jf300637b
DOI: http://dx.doi.org/10.1021/jf300637b
Colecciones
Articulos(INQUISUR)
Articulos de INST.DE QUIMICA DEL SUR
Citación
Dominguez, Marina Alejandra; Grunhut, Marcos; Pistonesi, Marcelo Fabian; Di Nezio, Maria Susana; Centurión, María Eugenia; Automatic flow-batch system for cold vapor atomic absorption spectroscopy determination of mercury in honey from Argentina using online sample treatment; American Chemical Society; Journal of Agricultural and Food Chemistry; 60; 19; 5-2012; 4812-4817
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