Evaluation of Greenness of Methods for the Determination of Mercury in Mushrooms

ISSN: 2213-347X (Online)
ISSN: 2213-3461 (Print)

Volume 2, 4 Issues, 2015

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Current Green Chemistry

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György Keglevich
Budapest University of Technology and Economics

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Evaluation of Greenness of Methods for the Determination of Mercury in Mushrooms

Current Green Chemistry, 1(3): 232-238.

Author(s): Manuela Ruiz-de-Cenzano, Maria L. Cervera and Miguel de la Guardia.

Affiliation: Department of Analytical Chemistry, University of Valencia, 50 th Dr. Moliner St., E-46100 Burjassot, Valencia, Spain.


In the present study, two analytical methodologies, one based on direct thermal degradation of samples followed by atomic absorption analysis (TDA-AAS), and another one, which consists on acid microwave-assisted digestion (MAD) followed by cold vapour atomic fluorescence determination (CV-AFS), have been applied to determine mercury in mushrooms. Both methodologies found the same concentration values, from 258 to 570 ng g-1 (dry weight), for nine samples. Analysis based on thermal degradation provided a limit of detection of 3 ng g-1 similar to that found by CV-AFS, and a relative standard deviation of 3 %, three times higher than that of CV-AFS. However, the direct analysis of untreated samples agrees well with green analytical principles because it involves less reagents consume and reduces waste generation. In fact, at analytical Eco-Scale, TDA-AAS procedure involves a green score of 92 points in front of the 59 points obtained for CV-AFS method.


Analytical eco-scale, cold vapour, direct analysis, green analytical chemistry, mercury, microwave-assisted digestion, mushroom, thermal degradation.

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Article Details

Volume: 1
Issue Number: 3
First Page: 232
Last Page: 238
Page Count: 7
DOI: 10.2174/2213346101666140319233119

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