INTRODUCTION [(18)F]BAY94-9172 (Florbetaben) (Compound 8) is a positron emission tomography (PET) tracer that is currently in Phase III study for in vivo mapping of fibrillar amyloid β as a pathological hallmark for Alzheimer's disease. This work reports new methods for the synthesis of [(19)F]BAY94-9172 and its two different precursors and radiosynthesis of [(18)F]BAY94-9172 with the two precu...

Oceanic dimethylsulfoniopropionate (DMSP) is the precursor to dimethylsulfide (DMS), which plays a role in climate regulation through transformation to methanesulfonic acid (MSA) and non-seasalt sulfate (NSS-SO(4)(2-)) aerosols. Here, we report measurements of the abundance and sulfur isotope compositions of DMSP from one phytoplankton species (Prorocentrum minimum) and five intertidal macroalg...

To develop an efficient and green method to recycling lead slag, a novel strategy fabricate nano-lead dioxide from slag was applied by the hydro-electrometallurgy. In leaching system, optimum condition of time 100 min, 80 °C, stirring rate 500 rpm, liquid/solid ratio 20 1 mol/L methanesulfonic acid resulted in recovery 89% residue obtained without toxicity. The kinetic study revealed that shows...

Classical molecular dynamics simulations of aqueous methanesulfonic acid solutions have been conducted at room temperature in the entire composition range. The dissociation has considered according to available experimental data. Then, systems are constituted by following species: water and molecules, hydronium cations, mesylate anions. carried out employing a reliable force field, which provid...