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Trace metal studies of selected white wines: an alternative approach

Sauvage, Laurant and Frank, Damian and Stearne, John and Millikan, Mary B (2002) Trace metal studies of selected white wines: an alternative approach. Analytica chimica acta, 458 (1). pp. 223-230. ISSN 0003-2670

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Abstract

A number of white wines from vineyards outside the metropolitan region of Melbourne were analyzed for the trace metals copper, iron, potassium, sodium, magnesium and calcium by atomic absorption spectrometry (AAS). The 24 wines analyzed included Chardonnay, Sauvignon Blanc, Riesling, Gewürztraminer and Pinot Gris. In addition, preliminary transmission near infrared (NIR) spectrometric analyses for these metals in the above wines indicated, using both multiple linear regression(MLR) and partial least squares (PLS), that promising results may be obtained for some metals. The squared correlation coefficients (R2) and the ratios of the standard error of cross validation (SECV) and the standard deviation (S.D.) for the calibration models for potassium, sodium, magnesium and calcium were acceptable, however those for iron and copper were not. Although, only a small number of wines were used in this study, the preliminary data indicated that NIR spectrometry may provide a suitable, rapid method for analysis for some metals in white wines, and warrants a further investigation using a larger number of white wines over a wider range of locations.

Item Type: Article
Uncontrolled Keywords: Australian white wine, trace metals, atomic absorption spectrometry, near infrared
Subjects: RFCD Classification > 250000 Chemical Sciences
FOR Classification > 0908 Food Sciences
Faculty/School/Research Centre/Department > School of Engineering and Science
Depositing User: Ms Phung T Tran
Date Deposited: 17 Oct 2008 03:47
Last Modified: 05 Feb 2015 05:15
URI: http://vuir.vu.edu.au/id/eprint/1048
DOI: 10.1016/S0003-2670(01)01607-5
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Citations in Scopus: 59 - View on Scopus

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