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Measurement of lead isotope ratios in wine by ICP-MS and its applications to the determination of lead concentration by isotope dilution |
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| Authors: | S. Augagneur B. Medina F. Grousset |
| Affiliation: | (1) Laboratoire Interrégional de la D. G. C. C. R. F., 351, Cours de la Libération, F-33405-Talence, France, FR;(2) Département de Géologie et Océanographie, URA CNRS 197, Université Bordeaux I, Avenue des Facultés, F-33405 Talence Cedex, France, FR |
| Abstract: | Methods are described for the accurate and precise determination of lead concentrations and the isotopic composition of lead in wine samples using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). This method needs little sample preparation. A comparison with lead isotope ratios measured by Thermal Ionization Mass Spectrometry (TIMS) in three wine samples reveals a good agreement between the two techniques. The lead concentration in three certified wine samples were measured by isotope dilution (ID) and the results are compared with those obtained by external calibration ICP-MS. Received: 10 June 1996/Revised: 23 September 1996/Accepted: 30 September 1996 |
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