The study compares nitric acid and ethylenediaminetetraacetic acid (EDTA) extraction of forest soils for the analysis of trace metals Fe, Mn, Zn, Cu, Pb, and Cd. Fifty forest soil samples from ten different locations were extracted using both methods. The two extraction procedures were compared through regression analysis for each element. All elements were analysed by flame atomic absorption s...

Soils close to former mines or metallurgical facilities often contain extreme concentrations of potentially toxic elements (PTEs), and among soil remediation actions needed, enhanced phytoextraction techniques using chelating agents could be a very promising option. In this context, pot experiment was conducted evaluate the effect Na2-EDTA, olive mill wastewater (OMW), their combination (EDTA +...

Water pollution caused by toxic elements is one of the most important environmental problems in the world. Heavy metals are toxic to human and dangerous for the environment. The objectives of this study were: the effects of chelating agents on heavy metals extraction from polluted water were carried out to examine. In different concentrations : 0.01, 0.05, 0.1 mg/l of Chelating agents: Ethylene...

Fe/Al-rich river sediments that were highly polluted with phosphorus (P) were used in tests to determine the optimum preparation techniques for measuring organic P (Po) using solution (31)P nuclear magnetic resonance spectroscopy ((31)P-NMR). The optimum pre-treatment, extraction time, sediment to solution ratio and sodium hydroxide-ethylenediaminetetraacetic acid (NaOH-EDTA) extractant solutio...

Removal of copper and nickel by the addition of the biodegradable chelating agent, chitosan and ethylenediamine tetraacetic acid (EDTA), was investigated, alongside the reaction of a reference compound sodium citrate for comparison. The artificial-contaminated soils were used in this study. The experiments showed that the extraction ability for copper and nickel from the contaminated soil decre...

ECM protein enrichment and immunoblotting 100mg of frozen samples were homogenized using a polytron (Kinematica, Bohemia, NY) in 250μL of buffer C (HEPES pH7.9, MgCl2, KCl, EDTA, Sucrose, Glycerol, Sodium OrthoVanadate) of the CNMCS protein extraction kit. Lysates were then spun for 20 min. at 15,000 rpm at 4°C, the supernatant was saved (intermediate fraction 1, enriched for cytosolic proteins...

abstract enhancing phytoextraction with aminopolycarboxylic acids (apcas) associated with fast growing and metal tolerant plants species has been proposed for the clean-up of heavy metal contaminated soils. the objectives of this study were to assess the efficiency of edta and nta for desorbing pb from soil and to compare their effects for enhancing of pb extraction with land cress (barbara ver...

The addition of edetic acid (EDTA) or trypsin to the infusion during a simulated extracapsular cataract extraction on cadaver eyes facilitates the removal of lens epithelial cells from the anterior capsule. Modification of the chemical composition of infusions used during extracapsular surgery may maximise lens epithelial cell removal and hence reduce the incidence of opacification of the poste...

festuca ovina l. is a hyperaccumulating plant which has aroused considerableinterest with respect to its possible use for phytoremediation of contaminated soils. thisstudy has been conducted to evaluate the potentials of f. ovina l. to serve as aphytoremediation plant in the cleaning up of cu in the polluted soils and to identifyextraction efficiency of ethylene diamine tetraacetic acid (edta) ...