The content of trace elements (Cu, Cr, Ni, Pb, and Zn) in hair and skin of silver fox (Vulpes vulpes) and arctic fox (Alopex lagopus) were determined. The content of elements were determined using inductively coupled plasma atomic emission spectrometry (ICP-OES). Samples of animal hair and skin were collected from two farms located in mid-western Poland: farm A, situated in a rural area and far...

an experiment was conducted in the experimental field of seed and plant improvement institute in karaj for three consecutive cropping seasons, 2001-2003, to study the effects of eight different fertilizer treatments including some microelements on grain yield and protein content of a bread wheat cultivar pishtaz. the experiment was in a rcbd with three replications.eight fertilizer treatments w...

In the present study, a field study was performed on some herbaceous plants growing in thesoutheast of Ahvaz, where some metal producing industries are active. The aim of this studywas to investigate and compare manganese (Mn) and zinc (Zn) accumulation in seven dominantherbaceous plants in this area. Plant samples were collected randomly. Associated soils weresampled from the same sites next t...

The photoreceptor cGMP phosphodiesterase (PDE6) plays a key role in vertebrate vision, but its enzymatic mechanism and the roles of metal ion co-factors have yet to be determined. We have determined the amount of endogenous Zn in rod PDE6 and established a requirement for tightly bound Zn in catalysis. Purified PDE6 contained 3–4-g atoms of zinc/mole, consistent with an initial content of two t...

Trace element analyses of marine sediments provide important information on past oceanographic and climatic changes. Five samples consisting of grey to black marls with layers of carbonate nodules (so called “Terre Noires” from a 102 m long profile from Oze, Southern France) were prepared in three different ways to find the most appropriate preparation technique for major, minor and trace eleme...

The purpose of this study was to evaluate the levels of heavy metal bioconcentration of the mosquitofish (Gambusia affinis) in Shadegan international wetland. Sampling including the water, waterbed sediment and mosquitofish was carried out from the selected sampling sites during October and November 2011, and analyzed by the ICP-OES. Results show that the water has poor qualitative condition, a...

20 soil samples collected from the vicinity of the Khash Cement plant, Iran, were analyzed for As, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb and Zn using ICP-OES. The results revealed that the metal distribution were in a fluctuating manner considering various distances and direction from the cement facility. However, it was observed that the mean concentration of the soil samples has no special trend wit...

Background and Purpose: The contamination by potentially toxic element (PTE) is a common environmental issue in worldwide rivers. The present study examined PTEs concentration in sediments of Talar River which is one of the main rivers in the Sothern Caspian Basin. Materials and Methods: The sediment samples (n= 44) were collected from top 0–5 cm of surface sediment in the main channel and flo...