نتایج جستجو برای: electrolytic concentration of soil solution

تعداد نتایج: 21217262  

ژورنال: علوم آب و خاک 2011
زهرا عربی, , محمد ‌اسماعیل اسدی, , مهدی همایی, ,

In this study, the effects of enhancing synthetic chelators (HEDTA, EGTA) and low molecular weight organic acids (LMWOA) such as citric acid were compared on cadmium (Cd) solution in soils that were artificially contaminated. Also Cd phytoextraction capability by radish (Raphanus Sativus L.) was studied. The experiment was laid out in a randomized complete factorial design where each treatment ...

Journal: :Circulation 1978
K A Popio A M Ross J M Oravec J T Ingram

SLUMMARY Both hemodynamic and electrocardiographic effects of Renografin-76 (diatrizoate meglumine) were studied in intact, anesthetized dogs. The left coronary artery in nine dogs was injected with equal amounts of Renografin-76, an equiosmolar dextrose solution (1690 mOsm/1) and a solution of the same electrolytic content (190 mEq/l sodium). Renografin and the dextrose solution produced signi...

2011
J. Matula

Phosphorus concentration in the soil solution of agricultural soils should be a consensus of the agronomic and environmental aspect. Data from literary sources are inconsistent if the method of soil solution extraction from the soil and the method of phosphorus detection are not indicated. In the present paper a simplified procedure of soil solution extraction is used that is derived from the n...

Ebadia, Taghi, Mehdinia, Ali, Qazinezhad, Mohammad,

Abstract In this work, removal of phenanthrene and acenaphthene, as a representative of polycyclic aromatic hydrocarbons, was investigated from soil samples by the soil washing remediation method combined with Central Composite Design. Response surface methodology was utilized to investigate the individual and interactive effects of three variables of removal process including surfactant solut...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1390

abstract venlafaxine, 1–[2–(dimethylamino)–1–(4–methoxyphenyl) ethyl]cyclohexanol hydrochloride is a novel non-tricyclic antidepressant. venlafaxine is a second generation antidepressant drug, has a neuropharmacologic profile distinct from that of existing antidepressants including tricyclic compounds, selective serotonin reuptake inhibitors and monoamine oxidase inhibitors. venlafaxine impart...

2015
Karin Karlfeldt Fedje Oskar Modin Suresh Bhargava

Excavation followed by landfilling is the most common method for treating soils contaminated by metals. However, as this solution is not sustainable, alternative techniques are required. Chemical soil washing is one such alternative. The aim of this experimental lab-scale study is to develop a remediation and metal recovery method for Cu contaminated sites. The method is based on the washing of...

Journal: :Ecotoxicology and environmental safety 2010
T Bur A Probst A Bianco L Gandois Y Crouau

The toxicity of cadmium for the Collembola Folsomia candida was studied by determining the effects of increasing Cd concentrations on growth, survival and reproduction in three cultivated and forested soils with different pH (4.5-8.2) and organic matter content (1.6-16.5%). The Cd concentration in soil CaCl(2) exchangeable fraction, in soil solution and in Collembola body was determined. At sim...

Journal: :تحقیقات مهندسی کشاورزی 0
بهمن یارقلی عضو هیات علمی و استادیار مؤسسه تحقیقات فنی و مهندسی کشاورزی

environmental pollution by heavy metals is a growing global concern. most heavy metals accumulate in the top soil and in the long term, increased concentrations in the soil results in increased absorption and accumulation in plants. the usual concentration of cadmium in the soil is 0.001-2.4 mg/kg of dry soil. the level of absorption and accumulation in plants depends on the type of plant, tiss...

پایان نامه :0 1370

all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...

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