The suitability and high sensitivity of total-reflection x-ray fluorescence analysis (TXRF) were used for multielement analysis of several species of Madeira wine taken directly from the usual glass Bottles. In addition, the uptake of lead by Madeira wine kept in a crystal vessel (30% lead) as a function of time was also studied. The detection limits were in the range 0.001-0.10 mg l(-1) and the precision was in the range 5-10%. The organic matrix of the wine was removed by wet digestion in nitric acid.
机构:
Adv Mat Res Ctr CIMAV SC, Environm & Energy Dept, Miguel de Cervantes 120, Chihuahua 31109, Chihuahua, MexicoChihuahua Autonomous Univ, Fac Nursing & Nutriol, Chihuahua 31125, Chihuahua, Mexico
Rodriguez-Maese, Rogelio
Palacio, Edwin
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机构:
Univ Balearic Isl, Lab Environm Analyt Chem, Cra Valldemossa Km 75, Palma De Mallorca, Palma, SpainChihuahua Autonomous Univ, Fac Nursing & Nutriol, Chihuahua 31125, Chihuahua, Mexico