نتایج جستجو برای: extractable cu
تعداد نتایج: 65450 فیلتر نتایج به سال:
Large rivers and especially their deltaic parts adjacent coastal zones are subjected to strong anthropogenic influence often considered as hotspots of environmental pollution. The Don River is one the largest most important in South Russia. basin a highly urbanized area with developed agriculture industry which negatively affect water quality, aquatic ecosystems soils. main objectives proposed ...
A survey was conducted to monitor the influence of city sewage irrigation on the heavy metal build up in soils around Bhopal. Concentration of the heavy metals in effluent was within safe limits. Diethylene triamine penta acetic acid extractable Pb, Cd, Ni, Co, Cr, Fe, Mn, Zn and Cu in the sewage irrigated surface soil ranged 3.5-6.8, 0.15-0.40, 2.56-5.58, 1.59-3.89, 0.45-0.55, 3.5-15.8, 3.6-8....
It has been demonstrated chemically that the iodine bound to proteins of the serum is predominantly composed of thyroxine (1-4). The concentration of this protein-bound or serum precipitable iodine (SPI) appears to be closely correlated with the activity of the thyroid gland (5-7). It is probably the most precise clinical criterion of such activity that has yet been extensively employed. It is,...
in order to know the environmental behaviour of toxic pollutants it is fundamental to understandthe role of chemical components of a material on sorption of such pollutants.in this study, the sorption of amix of polycyclic aromatic hydrocarbons (pahs) by cork fractions (i.e. raw cork (cf), free extractive cork(fef) and nonsaponifiable (desf)) has been investigated to better understand the role ...
This study aimed to evaluate soil physicochemical characteristics (pH, electrical conductivity, organic matter, total N, and extractable P K), potentially toxic elements (As, Cu, Pb, Zn), in non-active mines located the Portuguese sector of Iberian Pyrite Belt (IPB). A 70 sampling sites were surveyed at Aljustrel Lousal, areas already rehabilitated, São Domingos, where rehabilitation was only b...
Abstract Intensified vehicular traffic causes increased heavy metal contamination of the environment. We investigated chemistry soils located under silver fir stands in vicinity Poland’s S7 roadway. Three sampling sites were central Poland. Fieldwork included soil organic (O) horizon and mineral (A) topsoil. analyzed pH, carbon (C) nitrogen (N) concentration, HCl-extractable forms sodium (Na) m...
Soil spectroscopy is a promising alternative to evaluate and monitor soil water quality, particularly in mountainous agricultural lands characterized by intense degradation limited tests reports; few studies have evaluated the feasibility of VIS-NIR predict Mehlich 3 (M3) extractable nutrients. This study aimed (i) examine potential combination with partial least squares regression M3-extractab...
The present study was aimed at examining the distribution and abundance of glycerol dialkyl glycerol tetraethers (GDGTs) of archaeal and bacterial origin in peat samples from surface and deep (ca. 50 cm) horizons of a peat bog in the Jura Mountains (northeastern France). Two principal types of GDGTs are present: extractable GDGTs, recoverable by solvent extraction, and non-extractable GDGTs, li...
Extractable dietary fiber (DF) plays an important role in nutrition. This study on porridge making with whole grain rye investigated the effect of rest time of flour slurries at room temperature before cooking and amount of flour and salt in the recipe on the content of DF components and molecular weight distribution of extractable fructan, mixed linkage (1→3)(1→4)-β-d-glucan (β-glucan) and ara...
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