Fast Determination of Manganese in Milk and Similar Infant Food Samples Using Multivariate Optimization and GF AAS
Joint Authors
de Amorim, Flávia Regina
Nascentes, Clésia Cristina
da Silva, José Bento Borba
Franco, Milton Batista
Source
International Journal of Spectroscopy
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-10-13
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Manganese is an essential element, but high levels in foods can be toxic mainly for children.
A fast and efficient method to determine Mn in milk and other infant foods using slurries and liquid samples is presented.
Slurries were prepared in ultrapure water with 10 minutes of sonication.
Liquid samples were diluted in ultrapure water when necessary.
Multivariate optimization was used to establish some optimal analytical parameters through a fractional factorial design and a central composite design.
Slurred and diluted samples were analyzed directly by GF AAS.
The method presented limit of detection of (0.98±0.04) μg L−1, characteristic mass of (2.9±0.3) pg (recommended value 2 pg), RSD of 2.3% (n=5), and linear range from 0.98 to 20.0 μg L−1 using iridium as permanent modifier.
The accuracy was evaluated analyzing two certified reference materials: nonfat milk powder (SRM1549) and whole milk powder (SRM8435).
The powdered samples concentrations were between 0.210 and 26.3 μg g−1.
American Psychological Association (APA)
de Amorim, Flávia Regina& Nascentes, Clésia Cristina& Franco, Milton Batista& da Silva, José Bento Borba. 2011. Fast Determination of Manganese in Milk and Similar Infant Food Samples Using Multivariate Optimization and GF AAS. International Journal of Spectroscopy،Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-499935
Modern Language Association (MLA)
de Amorim, Flávia Regina…[et al.]. Fast Determination of Manganese in Milk and Similar Infant Food Samples Using Multivariate Optimization and GF AAS. International Journal of Spectroscopy No. 2011 (2011), pp.1-7.
https://search.emarefa.net/detail/BIM-499935
American Medical Association (AMA)
de Amorim, Flávia Regina& Nascentes, Clésia Cristina& Franco, Milton Batista& da Silva, José Bento Borba. Fast Determination of Manganese in Milk and Similar Infant Food Samples Using Multivariate Optimization and GF AAS. International Journal of Spectroscopy. 2011. Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-499935
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-499935