Disodium tetraacetate

Ethylenediamine tetraacetic acid (EDTA) [60-00-4] (Sequestrene), an anticoagulent at 1 mg of the disodium salt per mL blood, complexes with and removes calcium, Ca ", from the blood. Oxalate, citrate, and fluoride ions form insoluble salts with Ca " and chelate calcium from the blood. Salts containing these anticoagulants include lithium oxalate [553-91-3] 1 mg/mL blood sodium oxalate [62-76-0]2 mg/mL blood ... 

The perturbation of monolayers with agents (e.g., disodium ethylenediamine tetraacetate, Ca+2-free medium, sodium citrate, cytochalasin D) to open tight junctions and the effect on the transmonolayer flux of permeants are addressed in this section. It has been observed that permeants taking predominantly the trans-cellular route are not affected by perturbants of the paracellular route, compared to extracellular or relatively hydrophilic permeants (Artursson and Magnusson, 1990). Let us put these general observations into a quantitative intepretation in the light of the transmonolayer kinetic studies of steroids in this section and of paracellular permeants in Section III. There are three cases to consider (1) ABL-controlled permeants, (2) monolayer-controlled permeants transported principally by the transcellular route, and (3) monolayer-controlled permeants for which the paracellular route dominates. 

Cory-Slechta DA, Weiss B, Cox C. 1987. Mobilization and redistribution of lead over the course of calcium disodium ethylenediamine tetraacetate chelation therapy. J Pharmacol Exp Ther 243 804-813. 

Aqueous solution of ethylenediamine tetraacetic acid disodium salt (Na2 (EDTA)), 4 x 10 4M, 20 mL... 

Z2. Zucker, M. B., Some effects of disodium ethyl-enediamine tetraacetate on blood coagulation. Amer. J. Clin. Pathol. 24, 39-42 (1954). 

Charge item 1, sucrose, D-mannitol, saccharin sodium, and disodium ethylenediamine tetraacetate in an agitating granulator. 

The lithium carbonate concentration was measured by acidimetric titration with methyl orange indicator. The calcium sulfate and calcium hydroxide concentrations were determined by titration with disodium dihydrogen Versenate [the disodium salt of (ethylenedinitrilo) tetraacetic acid], with added magnesium chloride. A buffer of ammonium chloride in ammonium hydroxide was employed. The indicator was Erio-chrome Black T. A special high purity calcium carbonate in hydrochloric acid was used as a standard. Because of the high concentration of sodium sulfate it was con-... 

Tris(hydroxymethyl)methylamine (TRIS), sodium chloride, sodium citrate, ethylenediamine tetraacetic acid disodium salt (EDTA), lithium chloride, Tween 20, streptavidin 10 nm colloidal gold labelled, hydrochloric acid (37%), nitric acid, streptavidin-coated paramagnetic beads (MB) with a diameter of 2.8 pm, Dynabeads M-280 Streptavidin (Dynal Biotech, Oslo, Norway) biotinylated probe oligonucleotides which sequences are shown in Table 53.1. 

Vickery and Vickery [9] have investigated the interference by aluminium and iron in the ion-selective electrode method for the determination of fluoride in plant extracts. They demonstrated that plant ashes may contain sufficient of these two elements to seriously interfere in the determination of fluoride when using the fluoride-selective electrode. In the presence of these metals, the known additions method gives erroneous results, as did that involving the attempted formation of complexes with ethylene diamine tetraacetic acid (disodium salt) or 1,2-cyclohexylenedinitrilotetraacetic acid. 

EDTA reagent Add 50 g disodium ethylenediamine tetraacetate dihydrate to 100 mL of 10% NaOH solution (10 g NaOH/100 mL distilled water). Heat if necessary to dissolve. 

Simultaneous determination of chromium(lll) and chromium(VI) in water extract from metal fumes Sample solution at pH 5 reacted with disodium ethylenediamine tetraacetic acid at 50 °C for 1 hour HPLC on anion exchange column with Na2C03 eluting solution and simultaneous UV and AAS detection 0.2 ng by UVfor chromium(VI) 2.0 ng by UV 5.0 ng by AAS for chromium (IV) 5 ng by AAS for chromium (III) 95-105% at 0.002-2.0 pg Suzuki and Serita 1985... 

Sata F, Araki S, Murata K, et al. 1998. Behavior of heavy metals in human urine and blood following calcium disodium ethylenedoamine tetraacetate injection Observations in metal workers. Journal of Toxicology and Environmental Health,Part A 54 167-178. 

These reactions were reported to give inconsistent results1. Purification of the phenyliodo-niobenzoates by rccrystallization from water in the presence of disodium ethylenediamine-tetraacetate gave the monohydrates that reacted reproducibly with the ditellurium compounds2. 

Calcium Disodium Ethylenediaminetetraacetate Calcium Disodium (Ethylenedinitrilo)tetraacetate Calcium Disodium Edetate... 

Barium sulphate precipitate may also be dissolved in a hot 3 to 5 per cent solution of disodium ethylenediamine tetraacetate (Na2EDTA) in the presence of ammonia. 

Calcium chloride solutions (pH =6.2) labeled with Ca or 36ci were displaced vertically downward through columns of homogeneous, repacked, water-saturated sandy soil by a chemically identical solution labeled with Cl or Ca, respectively. Constant water fluxes, and solution activities of 1 to 15 pCi/dm, were used. Calcium solutions were analyzed by titration with disodium dihydrogen ethylenediamine tetraacetate to a murexide end point (11). The activity of radioactively labeled solutions was obtained by liquid scintillation techniques. Concentrations of adsorbed calcium were calculated from isotope dilution. The concentration of calcium chloride in the influent solution was 0.08 N. Because exchange of calcium for itself was the only chemical process affecting transport, the calcium chloride concentration remained constant at 0.08 N throughout each experiment, both within the column and in the effluent. 

SYNS CALCIUM DISODIUM EDETATE CALCIUM DISODIUM ETHYLENEDIAMINETETRAACETATE CALCIUM DISODIUM (ETHYLENEDINITRILO)-TETRAACETATE... 

ETHYLENEDINTTRILO)TETRAACETATE see EIX500 DISODIUM (ETHYLENEDINITRILO)TETRAACETIC ACID see EIX500... 

ETHYLENEDINITRILO)TETRAACETIC ACID CADMIUM(II) COMPLEX see CAF750 (ETHYLENEDINTTRILO)-TETRAACETIC ACID DISODIUM SALT see EIX500... 

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