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Caviar (fish roe of sturgeon) may contain high levels of contaminants. An inductively coupled plasma-optical emission spectrometer and a direct mercury analyzer were used to assess the contents of four heavy metals (Hg, Se, Sn, and Ba) in caviar of wild Persian sturgeon sea foods. The levels of Hg ranged from 1.39 to 1.50 μg g(-1), Se from 0.90 to 1.10 μg(More)
The presence of heavy metals in the environment could constitute a hazard to food security and public health. These can be accumulated in aquatic animals such as fish. In the present paper, three heavy metals (mercury, selenium, and tin) in canned products produced and sold in Iran were studied: longtail tuna, Kawakawa, Kilka, and yellowfin tuna were(More)
The Pb, Hg and As content of the muscle, gill and liver of marin organisms Otolithes rubber, Pampus argenteus, Parastromateus niger, Scomberomorus commerson, Onchorynchus mykiss were measured. Analysis of lead and arsenic was carried out by anodic stripping voltammetry method. Hg analysis was done spectrophotometrically. It was found that mercury(More)
Heavy metal (Cu, Cd, Zn) concentration of the muscle, gill, and liver of Otolithes rubber, Pampus argenteus, Parastromateus niger, Scomberomorus commerson, and Onchorynchus mykiss are determined by anodic stripping voltammetry method. The results show that the concentration of Cu, Cd, and Zn varied between 0.44 and not detected, 0.585 and 0.001, and 0.450(More)
BACKGROUND Metal pollution of waterways directly affects human health and can impact the food chain. Seafood living in polluted water can accumulate trace metals. The purpose of this study was to analyze the toxic metals Pb and Cd and the dietary essential metals Zn and Mn in 120 cans of tuna species from four different brands processed in Iran and(More)
In this study, the removal of Cr(III) and Cu(II) from contaminated wastewaters by rice husk, as an organic solid waste, was investigated. Experiments were performed to investigate the influence of wastewater initial concentration, pH of solution, and contact time on the efficiency of Cr(III) and Cu(II) removal. The results indicated that the maximum removal(More)
A new kinetic method has been developed for the determination of nitrite in fruit juice samples. The method is based on the catalytic effect of nitrite with the oxidation of Nile Blue A (NBA) by KBrO(3) in the sulfuric acid medium. The optimum conditions obtained are 1.2 mM sulfuric acid, 0.034 mM of NBA, 2.8 × 10(-3) M KBrO(3), reaction temperature of 20(More)
abSTraCT The present research report the heavy metal (Cu, Pb and Zn) contamination in muscle tissue of three species of fish (silver carp, common carp and grass carp) caught from Zarivar international wetland. Heavy metal concentrations (ìg g " 1 , wet weight; means±S.D.) in silver carp, common carp and grass carp muscle tissue were: respectively.(More)
Samples of four popular brands of canned fish consumed in Iran were analyzed for levels and determination of health risk assessment of Cd, Hg, Pb, Se, Sn and Zn after wet digestion with acids by ICP-OES and DMA. The results showed that the contents of Cd, Hg, Pb, Se, Sn and Zn (µg/g) in canned samples were 0.10 ± 0.04, 0.13 ± 0.05, 0.75 ± 0.65, 2.04 ± 0.43,(More)
The present research reports the heavy metal (Fe, Cr, Pb, As, and Co) contamination in caviar of Persian sturgeon (Acipenser persicus) caught from Southern Caspian Sea sampling site using ICP-OES. Heavy metal concentrations (microgram per gram, wet weight; means ± S.D.) in caviar samples were: Fe, 71.33 ± 0. 37; Cr, 0.27 ± 0.019; Pb, <0.01 ± 0.002; As,(More)