title: Possibility of wine dating using the natural Pb-210 radioactive isotope.
abstract: To control the authenticity of an old wine without opening the bottle, we developed a few years ago a method based on the measurement of the (137)Cs activity. However, for recent vintages, the (137)Cs activity drops to far too low values (most of the time less than 10 mBq/L for a 10-year-old wine) for this method to perform correctly. In this paper we examine the possibility to date wines using the natural radio-element (210)Pb which has a 22-year period. This new method we propose implies the opening of the bottle and the follow-on destruction of the wine itself, which means that it can only be used for investigating non-expensive bottles or wine lots where there are multiple bottles of the same provenance. Uncertainties on the resulting (210)Pb radioactivity values are large, up to more than 50%, mainly due to local atmospheric variations, which prevents us to carry out precise dating. However it can be used to discriminate between an old wine (pre-1952) and a young wine (past-1990), an information that cannot be obtained with the other techniques based on other isotopes ((137)Cs, (14)C or tritium).
authors: Centre d'Études Nucléaires de Bordeaux-Gradignan (CENBG), IN2P3 and Université de Bordeaux, 19 Chemin du Solarium, F-33175 Gradignan Cedex, France.
authors: Ph
authors: P
authors: Hubert
authors: Centre d'Études Nucléaires de Bordeaux-Gradignan (CENBG), IN2P3 and Université de Bordeaux, 19 Chemin du Solarium, F-33175 Gradignan Cedex, France. Electronic address: pravikof@cenbg.in2p3.fr.
authors: M S
authors: MS
authors: Pravikoff
authors: Service Commun des Laboratoires, Laboratoire de Bordeaux-Pessac de la DGCCRF, 3 avenue du Dr Albert Schweitzer, F-33600 Pessac, France.
authors: J
authors: J
authors: Gaye
mesh_terms: D005602:France; D007856:Lead Radioisotopes / Q000032:analysis*; D013058:Mass Spectrometry; D055110:Radiometric Dating; D014920:Wine / Q000032:analysis*
chemical_list: D007856:Lead Radioisotopes
keywords: Lead-210; Radioactivity; Wine dating