Ethylene diamine tetraacetate edta

Enhanced excretion of vanadium was achieved with chelation therapy provided by deferoxamine mesylate (DFOA) (Gomez et al. 1988). Humans or animals with vanadium poisoning have not been helped by the chelating agent dimercaprol (BAL), which is often effective in lessening the toxicity of other metals (Lusky et al. 1949). Intraperitoneal injections of ascorbic acid and of ethylene diamine tetraacetate (EDTA) reduced vanadium-induced morbidity in mice and rats (Jones and Basinger 1983 Mitchell and Floyd 1954). 

Synonyms Disodium iron (II) ethylene diamine tetraacetate EDTA, disodium iron Uses Food pkg. adhesives pesticide inert ingred. 

Ethylene diamine tetraacetate (edta ) is a popular hexadentate hgand in coordination chemistry. 

Dehydrogenation of the hydrazide derivative 33 with mercuric oxide in the presence of ethylene diamine tetraacetic acid (EDTA) gave 34 and 35 (77AP588). The latter (35) was prepared from a reaction of ester 36 with the appropriate lactam 37 (Scheme 11). 

In this laboratory, we also include the metal ion chelators EDTA (ethylene diamine tetraacetic acid binds, e.g., Mg2 1 -ions) and EGTA (ethylene glycol-bis(2-aminoethyl)-Al,iV,iV/,iV/,-tetraacetic acid binds, e.g., Ca2+-ions) in our lysis buffers. These agents help prevent phosphatase action (by the metal ion-dependent phosphatase PP2C, which is not inhibited by microcystin-LR), metal (Ca2+) dependent proteinases, and protein kinases, which require divalent cations such as Mg2 1 (and, in some cases, also Ca2+). We also use a mix of proteinase inhibitors that inhibit a broad range of proteolytic enzymes, including serine and cysteine proteinases. 

APHA = American Public Health Association EDTA = ethylene diamine tetraacetic acid EPA = Environmental Protection Agency Kl = potassium iodide OSHA = Occupational Safety and Health Administration UVA/IS = ultravioletA/isible light... 

Laboratory research has demonstrated that the liquid corona technology can treat a variety of wastewater contaminants such as carbon tetrachloride, metal ion chelators, and industrial dyes. The technology successfully reduced initial organic contaminant concentrations (by more than 99%) for the following contaminants after exposure to corona discharge trichloroethylene (TCE), ethylene-diamine-tetraacetic acid (EDTA), and benzoic acid. Additionally, liquid corona has demonstrated removal success with carbon tetrachloride, pentachlorophenol, and perchloroethylene. 

The effect of ligands on the character and degree of the inner-sphere reorganization during electroreduction of aqua-, aquahydroxy-, hydroxy-, and ethylene-diamine tetraacetic acid (EDTA) complexes of Zn(II) [95] and electrochemical process of Zn(II) complexed by different ligands - glycinate [96], ethanol amine [97], azinyl methyl ketoximes [98], aspartame [99], glutathione [100, 101] and several cephalosporin antibiotics [102] -were studied at mercury electrodes in aqueous solutions. 

Microcystin-LR (MC-LR) (Sigma, France) standard solutions first prepared in 50 50 methanokwater and subsequently diluted in 30 mM tris-HCl, 2mM dithiothreitol (DTT), 2mM ethylene diamine tetraacetic acid (EDTA), 0.2mgmL 1 bovine serum albumin (BSA), 20 mM MgCl2 buffer (pH 8.4) (prepared in Milli-Q water). 

Prepare the antibody for reduction. For labeling IgG antibodies with thiol-reactive reagents, the antibody should be at 5-10 mg of pro-tein/mL in 20 mM sodium or potassium phosphate buffer, pH 7.5-8.0 containing 150 mill NaCl or 10 mM phosphate-buffered saline ethylene diamine tetraacetic acid (PBS-EDTA). When biotin maleimide or biocytin maleimide derivatives are used, the buffer used for the reduction and subsequent steps should be at pH 6.5-7.2. 

Ethylene diamine tetraacetic acid (EDTA Invitrogen Corporation). 

Acid cleaning agents such as hydrochloric, phosphoric, or citric acids effectively remove common scaling compounds. With cellulose acetate membranes the pH of the solution should not go below 2.0 or else hydrolysis of the membrane will occur. Oxalic acid is particularly effective for removing iron deposits. Acids such as citric acid are not very effective with calcium, magnesium, or barium sulfate scale in this case a chelatant such as ethylene diamine tetraacetic acid (EDTA) may be used. 

E E(t) EDM EDTA EDX EHD EKI EO EOF ESI-MS Ez Activation energy Exit-age distribution function Electro-discharge machining Ethylene-diamine-tetraacetic acid Energy dispersive X-ray Electrohydrodynamic Electrokinetic instability Electroosmotic-Electroosmotic flow Electrospray ionization mass spectrometry Electric field... 

Plasma prepared with strong chelators such as ethylene diamine tetraacetic acid (EDTA) may act as peptidase inhibitors for metalloproteases and peptidases using divalent cations as cofactors (28). 

Solution of trypsin (0.05%) and ethylene diamine tetraacetic acid (EDTA) (Gibco/ Invitrogen, Karlsmhe, Germany). 

The treatment of complex ion equilibria in solution is analogous to the treatment of weak acids. One of the best known chelators is the well-known EDTA (ethylene diamine tetraacetic acid). The metal stability constants for EDTA are very high, which indicates strong complexes. Various other compounds are available with high metal-stability constants for agricultural or environmental uses. Some of the more important ones are DPTA (diethylene triamine pentaacetic acid), CyDTA (cyclohexane diamine tetraacetic acid), EDDA [ethylene diamine di (0-hydroxyphenyl acetic acid], or Chel-138. 

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