GFAAS determination of mercury in muscle samples of fish from Amazon, Brazil

Author(s)

Moraes, Paula M. ^{[1, 2]} ; Santos, Felipe A. ^{[1, 2]} ; Cavecci, Bruna ^{[3, 1]} ; Padilha, Cilene C. F. ^{[2, 1]} ; Vieira, Jose C. S. ^{[2, 1]} ; Roldan, Paulo S. ^[4] ; Padilha, Pedro de M. ^{[2, 5]}

Affiliation

^[1] Univ Brasilia, Fac Planaltina, BR-70910900 Brasilia, DF - Brazil

^[2] UNESP Sao Paulo State Univ, Biosci Inst, Botucatu, SP - Brazil

^[3] UNESP Sao Paulo State Univ, Fac Vet Med & Anim Sci, Botucatu, SP - Brazil

^[4] Univ Alagoas IQB UFAL, Maceio, Al - Brazil

^[5] UNICAMP Campinas State Univ, Natl Inst Bioanal Sci & Technol, Campinas, SP - Brazil

• Document type: Journal article
• Source: Food Chemistry; v. 141, n. 3, p. 2614-2617, DEC 1 2013.
• Web of Science Citations: 28

Abstract

In the present study, a simple, rapid and sensitive method was developed for the determination of mercury concentrations in the muscle tissue of fish from the Brazilian Amazon using graphite furnace atomic absorption spectrometry (GFAAS) following acid mineralization of the samples in an ultrasonic cold water bath. Using copper nitrate as a chemical modifier in solution and sodium tungstate as permanent modifier, we were able to attain thermal stabilization of the mercury up to the atomisation temperature of 1600 degrees C in the GFAAS assay. The calculated limits of detection (LOD) and quantification (LOQ) were 0.014 and 0.047 mg kg(-1), respectively. (C) 2013 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 09/54856-8 - Development of analytical methods for mercury metallomics studies in fish collected in the AHE JIRAU - Madeira River Basin area of influence
• Grantee: Paula Martin de Moraes
• Support type: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 10/51332-5 - Development of analytical methods for mercury metallomics studies in fish collected in the AHE JIRAU - Madeira River Basin area of influence
• Grantee: Pedro de Magalhães Padilha
• Support type: Regular Research Grants