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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/70879
Título: 
Iron determination by FAAS in fish feed and feces after ultrasound-assisted extraction
Autor(es): 
Instituição: 
Universidade Estadual Paulista (UNESP)
ISSN: 
  • 1932-7587
  • 1932-9954
Resumo: 
This paper proposes a method to determine iron in samples of fish feed and feces using ultrasound in the extraction of the analyte and in subsequent quantification by flame atomic absorption spectrometry. Using HCl 0.10 mol L -1 as the extraction solution, the optimal conditions of extraction were found to be: granulometry of the sample <60 μm; a sonication time of five cycles of 10 s and sonication power of 136 W. The method was applied in studies of the availability of iron in four food sources used in the diet of Nile Tilapia. The results obtained with the proposed extraction method allowed us to calculate the coefficients of apparent digestibility of iron in the food sources, which was not possible when using results obtained from samples mineralized by acid digestion. © Springer Science+Business Media, LLC 2008.
Data de publicação: 
1-Jan-2009
Citação: 
Sensing and Instrumentation for Food Quality and Safety, v. 3, n. 2, p. 108-113, 2009.
Duração: 
108-113
Palavras-chaves: 
  • Acid mineralization
  • Availability of iron
  • FAAS
  • Ultrasound extraction
  • Acid digestions
  • Analyte
  • Extraction methods
  • Extraction solutions
  • Fish feeds
  • Flame atomic absorption spectrometries
  • Food sources
  • Granulometry
  • Iron determinations
  • Nile tilapias
  • Optimal conditions
  • Ultrasound-assisted extractions
  • Absorption spectroscopy
  • Acids
  • Acoustic waves
  • Atomic absorption spectrometry
  • Atomic spectroscopy
  • Mineralogy
  • Ultrasonics
  • Wastewater treatment
  • Extraction
Fonte: 
http://dx.doi.org/10.1007/s11694-008-9066-9
Endereço permanente: 
Direitos de acesso: 
Acesso restrito
Tipo: 
outro
Fonte completa:
http://repositorio.unesp.br/handle/11449/70879
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