The sorption of 12 neutral organic compounds (NOCs) contained in mixtures to both hydrophilic mineral surfaces [uncoated, iron (hydr)oxide-coated, and aluminum (hydr)oxide-coated sands] and humic acid-mineral complexes with different fractions of organic carbon, f oc (1⁄4 0:051, 0.119, and 0.221%) was evaluated using batch equilibrium sorption tests. The 12 compounds included six nonpolar NOCs ...

The EU-project MINATROC (MINeral dust And TROpospheric Chemistry) aims at enabling an estimation of the influence of mineral dust, a major, but to date largely ignored component of tropospheric aerosol, on tropospheric oxidant cycles. Within the scope of this project continuous atmospheric measurements of gas-phase HNO3 and SO2 were conducted in June and July 2000 at the CNR WMO station, situat...

Previous studies on pre-molt gastroliths have shown a typical onion-like morphology of layers of amorphous mineral (mostly calcium carbonate) and chitin, resulting from the continuous deposition and densification of amorphous mineral spheres on a chitin-matrix during time. To investigate the consequences of this layered growth on the local structure and composition of the gastrolith, we perform...

Most power transformer failures are associated with the presence of corrosive sulfur compounds in mineral insulating oil, which dibenzyl disulfide (DBDS) is best known and most widespread compound. The oil failed transformers usually contained DBDS, a compound pronounced affinity for formation copper (I) sulfide (Cu2S). Copper that does not dissolve conducts electricity, can be deposited on pap...

Fundamental thermodynamic properties of the synthetic analog famatinite mineral - Cu3SbS4 were studied on basis electromotive force (EMF) measurements. The EMF concentration chains relative to Cu electrode with a solid electrolyte was measured for alloys from + Sb2S3 S phase region at 300-380K temperature interval. Based measurement data, partial functions copper in alloys, standard formation, ...

Soil biochemical properties shaping soil fertility and agro-ecosystem productivity depend on the reduced tillage system dose method of application fertilizer; therefore, research hypothesis put forward proposes that under conditions, subsurface a multi-component mineral fertilizer would increase enzymatic activity, thus favourably influencing biodiversity environment. The objective three-year s...

In the present study, the proximate composition, sugar, minerals, total phenolic and flavonoid compounds, and amino acids in Calystegia japonica (C. japonica) were measured to determine if it can be used as a nutritional and functional material for the development of valuable foods. The mean crude protein, fat, and ash contents of the leaves were 5.75, 2.46, and 7.77%, respectively. The soluble...