EPR Spectroscopy as an Alternative Analytical Method for Copper Determination in Alcoholic Beverages

An alternative, highly selective method for cooper(II) analysis in alcoholic beverages (brandies) is proposed using EPR spectroscopy. The method is simple, non destructive, fast and can be used for concentrations down to 100 ppb, with 1.1% (x = 1.55, s = 0.0179) RSD (relative standard deviation) and...

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Veröffentlicht in:	Analytical letters 1999-01, Vol.32 (4), p.761-770
Hauptverfasser:	McGarvey, B.R., Schultz, M.S., Vasconcellos, L.C.G., Bezerra, C.W.B., Franco, D.W.
Format:	Artikel
Sprache:	eng
Schlagworte:	Alcoholic Beverages Alcoholic beverages and cider Analytical chemistry Atomic Absorption (AA) Spectroscopy Biological and medical sciences Chemistry Copper Analysis Electron Paramagnetic Resonance (EPR) Spectroscopy Exact sciences and technology Fermented food industries Food industries Fundamental and applied biological sciences. Psychology Spectrometric and optical methods
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Beschreibung
Zusammenfassung:	An alternative, highly selective method for cooper(II) analysis in alcoholic beverages (brandies) is proposed using EPR spectroscopy. The method is simple, non destructive, fast and can be used for concentrations down to 100 ppb, with 1.1% (x = 1.55, s = 0.0179) RSD (relative standard deviation) and 98.7% accuracy.
ISSN:	0003-2719 1532-236X
DOI:	10.1080/00032719908542854