background bivalves have been used to study pollution level caused by heavy metals due to their biological characteristics. bahrakan region includes bahrakansar, hendijan, norouz and soroush oil fields, and current information regarding sea management, especially from the protective aspect is very little. objectives this study aimed to assess region pollution with heavy metals. for this purpose...

In recent years, the demand for copper and nickel has risen world-wide due to their use in printed circuit boards, batteries, application in marine alloys (due to excellent resistance to corrosion by seawater), and a wide range applications in day-to-day life (Doebrich, 2009). Increasing demand for these metals is leading to rapid depletion of high-grade resources. Alternative sources, such as ...

Formation of organometallic complexes in soil solution strongly influence metals phytoavailability. However, only few studies deal with the influence of metal speciation both on plant uptake and genotoxicity. In the present study, Vicia faba seedlings were exposed for 6h in controlled hydroponic conditions to 5 μM of lead nitrate alone and chelated to varying degrees by different organic ligand...

Salicylic acid, salicyluric acid, and gentisic acid in plasma are specifically quantitated (ultraviolet detection at 313 nm) with an octadecyl silane reversed-phase chromatographic column by peak-height determination or by peak-height ratios (internal standard, o-methoxybenzoic acid). Sample preparation requires addition of an equal volume of methyl cyanide (with or without the internal standar...

The effect of soil extraction procedures and/or sample pretreatment (drying, freezing of the soil sample) on the extractability of cadmium and lead was tested in a model experiment, with an employment of optical emission and atomic absorption spectrometry methods. In the first part, 6 extraction procedures were compared: 2 mol l HNO3, 0.43 mol l CH3COOH, 0.05 mol l EDTA, Mehlich III extraction ...

this study was aimed to investigate the effects of environmental pollution with heavy metals from ferro-nickel smelter on aminolevulinic acid dehydratase (alad) activity, and to analyze the blood lead level of feral pigeon ( columba livia ) in ferro-nickel smelter courtyard in drenas city, republic of kosovo. for this purpose, twenty specimens of feral pigeon (20 birds, males and females), were...

A new method for the isolation of simian virus 40 nucleoprotein complexes from nuclei of lytically infected cells is described. The method is based on the addition of a thiol-specific reagent, 5'5'-dithiobis(2-nitrobenzoic acid), to lysis and extraction buffers. By inhibiting an uncoating activity during simian virus 40 extraction, 5'5'-dithiobis (2-nitrobenzoic acid) allows the use of efficien...

Pistachio hull contains anacardic acids. It is a salicylic acid with side chain either saturated or unsaturated. This work focused on the efficient extraction of acids using solvent. Six aliquots were weighed and extracted hexane, ethyl acetate, mixture H2O/MeOH/HCl. Hexane was most solvent due to its ability dissolve Only one standard used quantify all them since does not affect wavelength gre...

Oxidation of anthracyclines leads to their degradation and inactivation. This process is carried out by peroxidases in the presence of a catalytic cofactor, a good peroxidase substrate. Here, we investigated the effect of salicylic acid, a commonly used anti-inflammatory and analgesic agent, on the peroxidative metabolism of anthracyclines. We report that at pharmacologically relevant concentra...