Determination of Low Levels of Lead in Beer Using Solid-Phase Extraction and Detection by Flame Atomic Absorption Spectrometry
Joint Authors
Neto, Waldomiro B.
Coelho, Nívia M. M.
Borges, Simone S. O.
Alves, Vanessa N.
Source
Journal of Analytical Methods in Chemistry
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-10-13
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
In this study, a method for the determination of low concentrations of lead in beer samples using solid-phase extraction with a flow injection analysis system and detection by flame atomic absorption spectrometry (FAAS) was developed.
Moringa oleifera seeds were used as a biosorbent material.
Chemical and flow variables of the online preconcentration system, such as sample pH, preconcentration flow rate, eluent flow rate, eluent concentration, particle size, and sorbent mass, were studied.
The optimum extraction conditions were obtained using a sample pH of 6.0, sample flow rate of 6.0 mL min−1, 63.0 mg of sorbent mass, and 2.0 mol L−1 HNO3 at a flow rate of 2.0 mL min−1 as the eluent.
With the optimized conditions, the preconcentration factor, precision, detection limit, consumption index, and sample throughput were estimated as 93, 0.3% (10.0 μg L−1, n=7), 7.5 μg L−1, 0.11 mL, and 23 samples per hour, respectively.
The method developed was successfully applied to beer samples and recovery tests, with recovery ranging from 80% to 100%.
American Psychological Association (APA)
Alves, Vanessa N.& Borges, Simone S. O.& Neto, Waldomiro B.& Coelho, Nívia M. M.. 2011. Determination of Low Levels of Lead in Beer Using Solid-Phase Extraction and Detection by Flame Atomic Absorption Spectrometry. Journal of Analytical Methods in Chemistry،Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-990595
Modern Language Association (MLA)
Alves, Vanessa N.…[et al.]. Determination of Low Levels of Lead in Beer Using Solid-Phase Extraction and Detection by Flame Atomic Absorption Spectrometry. Journal of Analytical Methods in Chemistry No. 2011 (2011), pp.1-6.
https://search.emarefa.net/detail/BIM-990595
American Medical Association (AMA)
Alves, Vanessa N.& Borges, Simone S. O.& Neto, Waldomiro B.& Coelho, Nívia M. M.. Determination of Low Levels of Lead in Beer Using Solid-Phase Extraction and Detection by Flame Atomic Absorption Spectrometry. Journal of Analytical Methods in Chemistry. 2011. Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-990595
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-990595