Differentiation Among Brazilian Wine Regions Based on Lead Isotopic Data

Abstract

For the first time, the isotope ratio of lead is reported in Brazilian red wines. The lead concentration and the ratios of Pb ratio data demonstrated that the wines of the Southern region have radiogenic features, whereas the wines of the Northeastern region ranged from slightly to very radiogenic. These results indicated that the lead concentrations in the wines from these Brazilian regions are influenced both by agricultural practices and by natural occurrences. Isotope ratios allowed for differentiation among the wines produced in these two important wine producing areas in Brazil and are emerging as a promising tool in the study of the geographical origin of Brazilian wines.

Determination of heavy metals and lead strontium isotope characterization from Merlot soil samples, Dealu Bujorului vineyard

“…Based on the obtained results, it was verified that, applying quadrupole ICP-MS, relative standard deviation and reproducibility of approximately 0.5% for 87 Sr/ 86 Sr, 206 Pb/ 207 Pb and 208 Pb/ 206 Pb are feasible. The results were in agreement with those reported by [21,52].…”

“…Regarding These results demonstrate that Pb isotopic ratios were derived mainly from weathered parent material, except the 206 Pb/ 207 Pb uppermost horizons of soil profiles which come from automobile emissions. The more radiogenic 208 Pb/ 206 Pb and 206 Pb/ 207 Pb ratio in soil probably reflects the Pb derived from weathered bedrock, and the isotopic composition of Pb is mostly influenced by the decay of U and Th content in the soil, weathering processes and original rock age, which provide a fingerprint used for different forensic and archeological purposes [52].…”

Elemental Profile and 207Pb/206Pb, 208Pb/206Pb, 204Pb/206Pb, 87Sr/86Sr Isotope Ratio as Fingerprints for Geographical Traceability of Romanian Wines

“…The results were in agreement with those reported by (Ketterer et al, 1991;Barbaste et al, 2001;Almeida et al, 2016;Geana et al, 2016).…”

“…The Pb isotope ratio can be used to identify the sources and transport pathways of Pb in pollution studies (Hu et al, 2015). Previous works have shows that the use of lead isotopes is a good tool in order to know the origin of Pb and to identify the types of Pb according to anthropogenic or geogenic origin (Ettler et al, 2004;Li et al, 2011;Álvarez-Iglesias et al, 2012); this is because the Pb emitted into the atmosphere maintains a characteristic isotopic composition (signature) and does not change during the physical/ physicochemical processes associated with smelting, refining or manufacturing (Flegal and Smith, 1995 Pb from wines and soil of origin (Avram et al, 2014;Kristensen et al, 2016;Dehelean and Voica, 2012;Almeida et al, 2016), this representing the starting premise for geographical origin determination. The lead isotope ratio depends on factors such as thorium and uranium content in the soil, weathering processes and original rock age, which provide a fingerprint used for different forensic and archeological purposes (Komárek et al, 2008;Roux et al, 2004;Dreyfus et al, 2007).…”

Elemental Content and Lead-Strontium Isotope Characterization of Wine

“…Also, ICP-MS was used for lead and strontium isotopic composition determination in several types of wines [36].…”