Field open top chambers (OTCs) and soil mercury (Hg) enriched experiments were employed to study the influence of Hg concentrations in air and soil on the Hg accumulation in the organs of maize (Zea mays L.) and wheat (Triticum aestivum L.). Results showed that Hg concentrations in foliages were correlated significantly (p < 0.05) with air Hg concentrations but insignificantly correlated with s...

2-Hydroxyglutarate (2-HG) was enantiomerically separated using copper(II) acetate and N,N-dimethyl-L-phenylalanine as chiral additives. These compounds formed diastereomeric complexes with 2-HG, which were successfully on an achiral (ODS) column. Several parameters, such additive concentration, the type of organic modifier, column temperature, optimized. Using optimal mobile phase (1 mM 2 in a ...

introduction despite the limited anthropogenic activity in arctic regions, the levels of heavy metals are of concern and the arctic is considered as an important global sink for mercury depletion. mercury is not readily available to the food web in its natural form. however, inorganic mercury are converted to organic mercury compounds by microbial processes of anaerobic organisms. mehg is more ...

Mercury (Hg), one of the elements most toxic to biota, accumulates within organisms throughout their lifespan and biomagnifies along trophic chain. Due key role in marine systems, cephalopods constitute a major vector Hg predators. Further, they grow rapidly display complex behaviours, which can be altered by neurotoxic Hg. This study investigated concentrations 81 cephalopod specimens sampled ...

this study was conducted to determine the residues of mercury (hg), lead (pb), copper (cu) and cadmium (cd) in the imported tilapia fillets. thirty random samples from imported tilapia fillets were collected from different markets in isfahan city, central iran. they were analyzed using graphite furnace atomic absorption spectrometer (perkin elmer 800) for pb, cu, cd and flow injection mercury s...

Mercury (Hg) is a toxicant of global concern that accumulates in organisms as methyl Hg. The production of methyl Hg by anaerobic bacteria may be limited in anoxic sediments by the sequestration of divalent Hg [Hg(II)] into a solid phase or by the formation of elemental Hg [Hg(0)]. We tested the hypothesis that nanocrystalline mackinawite (tetragonal FeS), which is abundant in sediments where H...

PURPOSE To report the immediate changes of intraocular (IOP) pressure after an intravitreal injection of 2.5mg (0.1 ml) of bevacizumab. METHODS Prospective, non-controlled, interventional case series of 45 patients undergoing intravitreal injection of 2.5mg (0.1 mL) of bevacizumab for a variety of retinal disorders. IOP was measured with a Goldmann tonometer at baseline, immediately after, 30...

In vitro bioaccessibility (IVBA) studies were carried out on samples of mercury (Hg) mine-waste calcine (roasted Hg ore) by leaching with simulated human body fluids. The objective was to estimate potential human exposure to Hg due to inhalation of airborne calcine particulates and hand-to-mouth ingestion of Hg-bearing calcines. Mine waste calcines collected from Hg mines at Almaden, Spain, and...