Original research articles

Determination of lead and cadmiun in vineyard soils, grapes and wines of the Azores

Abstract

This study describes the determination of lead and cadmium in vineyard soils of three regions of the Azores, and in the grapes and wines produced in those regions. The elements were analysed by graphite furnace atomic absorption spectrometry (GFAAS); wines were analysed without prior sample pre-treatment; grapes and soils were analysed after microwave digestion. Soils were also analysed by an alternative technique in order to establish the soluble fraction of these minerals directly assimilable by the plant. Statistical analysis revealed that the amounts of these minerals in wines are 28 μg/l and 0.58 μg/l for lead and cadmium, respectively. The levels of pollution by these elements is significantly lower in the Azores by comparison with other regions (according to literature values).

Authors


María Teresa Ribeiro de Lima

Affiliation : Universidade dos Açores, Departamento de Ciências Agrárias, Terra Chã, 9700 Angra do Heroísmo, Portugal


Marie-Thérèse Cabanis

Affiliation : Université de Montpellier I, Faculté de Pharmacie, Centre de formation et de Recherche en oenologie, 15, avenue Charles Flahault, B.P.14.491, 34093 Montpellier cedex 5, France


Lurdes Matos

Affiliation : Departmento de Ciencias Agraria, Universidade dos Açores, 9700 Angra do Heroismo, Tereira, Azores


Geneviève Cassanas

Affiliation : Laboratoire de Physique Industrielle et traitement de l’Information, Faculté de Pharmacie, 15 Avenue Charles Flahault, BP 14,491, 34093 Montpellier Cedex 5, France


Mary T. Kelly

Affiliation : Centre de formation et de Recherche en oenologie, Faculté des sciences pharmaceutiques, 15 avenue Charles Flahault, 34093 Montpellier cedex 5, France

mary.kelly@univ-montp1.fr

Alain Blaise

Affiliation : Centre de formation et de Recherche en oenologie, Faculté des sciences pharmaceutiques, 15 avenue Charles Flahault, 34093 Montpellier cedex 5, France

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