Spectrochemical determination of lead in wines

The determination of lead in wines of different origin was performed by means of atomic emission spectroscopy with argon stabilized DC. U-shaped arc and electrothermal atomic absorption spectrometry. The comparison of the results obtained by the direct and standard addition method has indicated the...

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Bibliographic Details
Published in:Journal of the Serbian Chemical Society 2000-06, Vol.65 (5-6), p.323-329
Main Authors: DRAGAN MARKOVIC, ALEKSANDRA KANDIC, SLAVICA RAZIC, MARIJA TODOROVIC, IVANKA HOLCLAJTNER-ANTUNOVIC, MIRJANA TRIPKOVIC
Format: Article
Language:English
Subjects:
GFAAS
lead
organic matrix
U-shaped arc
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Summary:The determination of lead in wines of different origin was performed by means of atomic emission spectroscopy with argon stabilized DC. U-shaped arc and electrothermal atomic absorption spectrometry. The comparison of the results obtained by the direct and standard addition method has indicated the presence of a depressive effect of the complex organic matrix. The effect is avoided successfully by mineralization, as well as by dissolution of the samples. Thus, a relative simple but precise and sensitive method involving the application of a stabilized arc and photoelectric detection with time integration of the emission signals is recommended for the determination of low concentrations of lead in wines. The complex organic matrix was investigated by recording the IR spectra of different wine fractions.
ISSN:0352-5139