Optimization of sample preparation procedures for evaluation of the mineral composition of fish feeds using ICP-based methods.
Food Chem
; 273: 106-114, 2019 Feb 01.
Article
em En
| MEDLINE
| ID: mdl-30292355
This work describes the application of an experimental design in optimizing the decomposition and spectrometer operational conditions for analysis of fish feeds. The content of 22 elements (six macroelements, four microelements and eleven trace elements) in feeds for fishes (ornamental and for human consumption) was determined by inductively coupled plasma (ICP)-based methods. Limits of quantification were obtained and the values ranged between 0.02â¯mgâ¯kg-1 (Cd) and 76â¯mgâ¯kg-1 (Al). Evaluation of the methods was achieved through analysis of standard reference material, Oyster Tissue (NIST 1566b) and Tea (NCS DC 73351). Element concentrations in feed samples for ornamental fish ranged from <0.02â¯mgâ¯kg-1 (Cd) to 2.79% (P) and for fish breeding for human consumption from <0.02â¯mgâ¯kg-1 (Cd) to 2.00% (Ca). The concentrations of the elements obtained in the analyzed fish feeds were within the limits established by Brazilian and American legislation for regulated elements.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Espectrometria de Massas
/
Peixes
/
Ração Animal
/
Minerais
Limite:
Animals
/
Humans
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Food Chem
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Reino Unido