Mapping Ethanol Production Sources in Brazil Through Stable Isotopes

Stable isotopes and multiple sources

Introduction Conclusions References

Production of stable isotopes by membrane method

Water enriched with its natural isotopes plays an important role in research and technology. Heavy water (HDO, D2O) is used in nuclear technology and research and the increasing market demand is expected in future if nuclear fusion will be used for energy production. Water enriched in O is used in research and medicine in trace experiments, as is water enriched in O. Recently there appears to b...

Assessing Sources of Human Methylmercury Exposure Using Stable Mercury Isotopes

Seafood consumption is the primary route of methylmercury (MeHg) exposure for most populations. Inherent uncertainties in dietary survey data point to the need for an empirical tool to confirm exposure sources. We therefore explore the utility of Hg stable isotope ratios in human hair as a new method for discerning MeHg exposure sources. We characterized Hg isotope fractionation between humans ...

Production of Stable Isotopes by Selective Channel Photofission of Pd

A conservative modeling and analysis were attempted to explain the presence of nonradioactive fission-like products with nonnatural isotopic ratios observed in some D2O/Pd electrolysis experiments. The collective deformation of a Pd nucleus by multiphoton E1 resonance absorption in a dynamic PdDx lattice was assumed to induce low-energy photofissions via the selective scission channels within t...

Challenges to the Expansion of Ethanol Production in Brazil