dc.contributor | Universidade de São Paulo (USP) | |
dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Universidade Federal de Uberlândia (UFU) | |
dc.contributor | Instituto de Pesquisas Energéticas e Nucleares (IPEN) | |
dc.date.accessioned | 2014-05-20T15:21:06Z | |
dc.date.accessioned | 2022-10-05T16:09:02Z | |
dc.date.available | 2014-05-20T15:21:06Z | |
dc.date.available | 2022-10-05T16:09:02Z | |
dc.date.created | 2014-05-20T15:21:06Z | |
dc.date.issued | 2007-01-01 | |
dc.identifier | Food Chemistry. Oxford: Elsevier B.V., v. 101, n. 2, p. 579-584, 2007. | |
dc.identifier | 0308-8146 | |
dc.identifier | http://hdl.handle.net/11449/32277 | |
dc.identifier | 10.1016/j.foodchem.2006.02.017 | |
dc.identifier | WOS:000241044100018 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3904864 | |
dc.description.abstract | A method for the total mercury determination in fish and shrimps employing chronopotentiometric stripping analysis on gold film electrodes is described. Fish and shrimp tissues were digested using a microwave oven equipped with closed vessels. We developed a microwave heating program which decomposed all the samples employing diluted nitric acid and hydrogen peroxide. The proposed method was validated by analyzing a certified reference material and then applied for different fish species from fresh water and seawater acquired in local markets of São Paulo city, Brazil. The Brazilian legislation establishes 0.5 and 1 mg per kilogram of fish as upper limit of mercury for omnivorous and predator species, respectively. Except for blue shark tissues, the mercury content was situated below 0.5 mu g g(-1) for all the analyzed samples. The detection limit of the proposed method was calculated as 5 ng g(-1) of sample utilizing 5 minutes of electrodeposition (+300 mV vs. Ag/AgCl) on the gold electrode. (c) 2006 Elsevier Ltd. All rights reserved. | |
dc.language | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation | Food Chemistry | |
dc.relation | 4.946 | |
dc.relation | 1,793 | |
dc.rights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | mercury | |
dc.subject | fish | |
dc.subject | shrimp | |
dc.subject | microwave digestion | |
dc.subject | chronopotentiometric stripping analysis | |
dc.subject | gold electrodes | |
dc.title | Analytical procedure for total mercury determination in fishes and shrimps by chronopotentiometric stripping analysis at gold film electrodes after microwave digestion | |
dc.type | Artigo | |