The aim of this study was to examine the minerals content (toxic elements, macro-elements and trace elements) Basilicata region (southern Italy) honeys compare mineral profile classified as rural, industrial urban according anthropic characteristics geographical origin. Overall, Ca, Na, Mg, Fe, Al, Zn Mn were most abundant elements detected in honeys, with average contents exceeding 1 ppm, wher...

In this work we have performed first-principles calculations based on the spin-polarized density-functional theory for the adsorption and diffusion of Au, Ag, and Pb atoms on NaCl 001 , KCl 001 , and KBr 001 surfaces. We consider also the influence of adatom charge on the adsorption and diffusion. In order to characterize the different systems we explicitly calculate charge transfer between sur...

The Ildeus mafic–ultramafic complex represents plutonic roots of a Triassic magmatic arc tectonically emplaced into the thickened uppermost crust beneath Mesozoic Stanovoy collided margin. cumulates host Ni-Co-Cu-Pt-Ag-Au sulfide-native metal-alloy mineralization produced through differentiation subduction-related primary mafic melt. This melt was sourced in metal-rich sub-arc mantle wedge hybr...

A simple method has been developed for the spontaneous deposition of Prussian blue (PB) particles from a solution containing only ferricyanide ions onto conducting substrates such as indium tin oxide glass, glassy carbon disk and carbon nanotube (CNT) materials. Formation of PB deposits was confirmed by ultraviolet-visible absorption spectrometry and electrochemical techniques. The surface morp...

This paper reports the results of a study magmatic rocks with Sn–W–Au–Ag mineralization from Kuranakh, Elikchan, and Istekh ore fields in Northern batholith belt north-eastern Verkhoyansk–Kolyma orogenic Eastern Russia. Using petrographic, mineralogical, geochemical, isotopic methods, we determined mineral compositions, petrochemistry, geochemistry rocks, P–T conditions their generation crystal...

This paper documents the exploration significance of Ag/Au, Au/Cu, Cu/Mo and (Ag×Au)/Cu×Mo) ratios of the supra-ore and sub-ore halos versus fluid inclusion evolution for 24 Cu, 6 Cu- Mo and 10 Cu-Au porphyry deposits worldwide. The ratios are based only on the economic and mineralized hypogene alteration zones. The results indicate that (Ag×Au)/(Cu×Mo), Au/Cu and Cu/Mo ratios increase with dec...

Four previously documented ligand design strategies for achieving Ag(I) discrimination have been applied to the design of a new N-benzylated N2S3-donor macrocycle; the latter shows high selectivity for Ag(I) over Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pb(II) in log K and bulk membrane transport studies.

Metal-enhanced luminescence of lanthanide complexes by noble metal nanoparticles has attracted much attention because of its high efficiency in improving the luminescent properties of lanthanide ions. Herein, nine kinds of europium and terbium complexes-RE(TPTZ)(ampca)₃·3H₂O, RE(TPTZ)(BA)₃·3H₂O, RE(phen)(ampca)₃·3H₂O, RE(phen)(PTA)1.5·3H₂O (RE = Eu, Tb) and Eu(phen)(BA)₃·3H₂O (TPTZ = 2,4,6-tri(...