Determination of Low Levels of Lead in Beer Using Solid-Phase Extraction and Detection by Flame Atomic Absorption Spectrometry

المؤلفون المشاركون

Neto, Waldomiro B.
Coelho, Nívia M. M.
Borges, Simone S. O.
Alves, Vanessa N.

المصدر

Journal of Analytical Methods in Chemistry

العدد

المجلد 2011، العدد 2011 (31 ديسمبر/كانون الأول 2011)، ص ص. 1-6، 6ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2011-10-13

دولة النشر

مصر

عدد الصفحات

6

التخصصات الرئيسية

الكيمياء

الملخص 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%.

نمط استشهاد جمعية علماء النفس الأمريكية (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

نمط استشهاد الجمعية الأمريكية للغات الحديثة (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

نمط استشهاد الجمعية الطبية الأمريكية (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

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-990595