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

Mireille Barbaste; Keith Robinson; Stephen Guilfoyle; Bernard Medina; Ryszard Lobinski

doi:10.1039/B109559P

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Mireille Barbaste,^ab Keith Robinson,^c Stephen Guilfoyle,^c Bernard Medina^b and Ryszard Lobinski*^a

Author affiliations

* Corresponding authors

^a Group of Bio-inorganic Analytical Chemistry, CNRS UMR 5034, Helioparc, 2, av. Pr. Angot, Pau-Pyrénées, France

^b DGCCRF, 351, Cours de la Libération, Talence, France

^c Thermo Elemental, Ion Path, Winsford, Cheshire, UK

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.

Download options Please wait...

Article information

DOI: https://doi.org/10.1039/B109559P
Article type: Technical Note
Submitted: 19 Oct 2001
Accepted: 26 Nov 2001
First published: 18 Dec 2001

Download Citation

J. Anal. At. Spectrom., 2002,17, 135-137

Permissions

Request permissions