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Issue 2, 2002
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Abstract

The 87Sr/86Sr isotope ratio of wine reflects that of the soil on which the vine is grown and is characteristic of the geographical origin of wine. A method based on ICP-MS using a sector field mass analyser with a multicollector able to reach the precision required for the discrimination of different wines (<0.005%) was developed. Strontium was separated from Rb (to avoid the 87Sr/87Rb isobaric interference) and the Sr-rich fraction was nebulized into the ICP. Precision values of 0.002–0.003% were routinely measured. The accuracy of the method, evaluated by analysis of the NIST SRM 987 (SrCO3, isotopic), was 0.02%. The analysis of 11 wines of different origins showed a clear difference between wines produced on basaltic, mixed and granitic soil areas.

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Article information


Submitted
19 Oct 2001
Accepted
26 Nov 2001
First published
18 Dec 2001

J. Anal. At. Spectrom., 2002,17, 135-137
Article type
Technical Note

Precise determination of the strontium isotope ratios in wine by inductively coupled plasma sector field multicollector mass spectrometry (ICP-SF-MC-MS)

M. Barbaste, K. Robinson, S. Guilfoyle, B. Medina and R. Lobinski, J. Anal. At. Spectrom., 2002, 17, 135
DOI: 10.1039/B109559P

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