Ricerc@Sapienza

In this investigation, the crystal chemical characterization of one sample of woolly erionite-K (Lander County, NV, USA) was examined after suspension in a FeCl2 solution, in anaerobic conditions. The aim of this study was to determine the effect of the chemical composition of erionite on its efficiency to bind iron. Inductively coupled plasma (ICP) results showed that the sample bound Fe(II) through an ion-exchange mechanism mainly involving Ca. In addition, chemical and structural data indicated that Fe(II) is fixed at the Ca3 site, six-fold coordinated to water molecules.

The levels of 30 elements (Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, Ni, P, Pb, S, Sb, Se, Si,
Sn, Sr, Ti, Tl, U, V, Zn) and some typical quality parameters were measured in 40 honey samples from the Lazio
region (Italy). The main purpose of this study was to enhance the information variety. The mean values for the
quality parameters were: pH, 4.0; sugar, 80.9 °brix; moisture, 17.4%; electrical conductivity 0.63 mS cm⁠-1. Mineral
elements were quantified by ICP-OES and ICP-MS and compared with literature data. The most abundant