Results 121 to 130 of about 2,526 (154)
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Journal of the American Oil Chemists' Society, 1988
AbstractA high pressure liquid chromatography method is described for the identification and quantitation of aminocarboxylate chelating agents in bar soaps. The method involves reacting the sample with cupric sulfate which precipitates the soap and forms a water soluble aminocarboxylate‐copper complex.
M. M. Goldstein, W. P. Lok
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AbstractA high pressure liquid chromatography method is described for the identification and quantitation of aminocarboxylate chelating agents in bar soaps. The method involves reacting the sample with cupric sulfate which precipitates the soap and forms a water soluble aminocarboxylate‐copper complex.
M. M. Goldstein, W. P. Lok
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99mTc-labeled colchicine for tumor imaging using DTPA as bifunctional chelating agent
Journal of Radioanalytical and Nuclear Chemistry, 2015For the purpose to develop novel 99mTc-labeled tumor imaging agents with SPECT, colchicine (CHC) was directly labeled by 99mTc using diethylene triamine pentacetate acid (DTPA) as bifunctional chelating agent. Trimethylcolchicinic acid, derivatived from colchicine, was conjugated to DTPA to get the new ligand DTPA-CHC, which was labeled by 99mTc in the
J. Wang +4 more
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Interactions of DTPA chelating agent with sandstone rocks during EOR: Rock surface charge study
Fuel, 2018Abstract Enhanced oil recovery (EOR) using low salinity water has been proven experimentally and at the field scale. One of the mechanisms behind recovery enhancement due to low salinity water injection has been related to the change of rock surface charge which might lead to wettability alteration.
Muhammad Shahzad Kamal +1 more
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Increased Uptake of 241Am by Plants Caused by the Chelating Agent DTPA
Health Physics, 1972AbstractThe chelating agent diethylenetriaminepentaacetic acid (DTPA) which has the ability to increase uptake by plants of several metals and is widely used as a practical means of correcting iron deficiency in plants has been shown to greatly increase the uptake from soils of 241Am by plants ...
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Enhanced Oil Recovery from Heavy Oil Sandstone Reservoirs Using DTPA Chelating Agent/SW Solution
Arabian Journal for Science and Engineering, 2023Mahsa Parhizgar Keradeh +1 more
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International Journal of Radiation Biology, 1997
Diethylenetriamine pentaacetic acid (DTPA) has been tested with 8 other new chelators for neptunium decorporation after systemic contamination in the rat. The ligands were injected intravenously at a dosage of 30 mumol kg-1 and the animals killed 24 h later.
F, Paquet +4 more
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Diethylenetriamine pentaacetic acid (DTPA) has been tested with 8 other new chelators for neptunium decorporation after systemic contamination in the rat. The ligands were injected intravenously at a dosage of 30 mumol kg-1 and the animals killed 24 h later.
F, Paquet +4 more
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Organic & Biomolecular Chemistry, 2012
The core structure of cis-3,5-diaminopiperidine was N-alkylated with excess t-butylbromoacetate in order to exploit the successive N-quaternarization and Stevens rearrangement to access the pentaalkylated product and the bifunctional chelating agent containing a N-butanedioic acid pendant arm at the same time. The relaxometric properties of the Gd(III)
TEI, LORENZO +3 more
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The core structure of cis-3,5-diaminopiperidine was N-alkylated with excess t-butylbromoacetate in order to exploit the successive N-quaternarization and Stevens rearrangement to access the pentaalkylated product and the bifunctional chelating agent containing a N-butanedioic acid pendant arm at the same time. The relaxometric properties of the Gd(III)
TEI, LORENZO +3 more
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Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1999
Abstract DTPA (diethylenetriaminepentaacetic acid) is a chelating agent widely used for removal of barium sulfate (barite) scale in the petroleum industry. In this paper we report ex-situ investigations of barite dissolution in deionized water and in 0.18 M DTPA aqueous solutions.
Bruce E. Koel +2 more
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Abstract DTPA (diethylenetriaminepentaacetic acid) is a chelating agent widely used for removal of barium sulfate (barite) scale in the petroleum industry. In this paper we report ex-situ investigations of barite dissolution in deionized water and in 0.18 M DTPA aqueous solutions.
Bruce E. Koel +2 more
exaly +2 more sources
Science of The Total Environment, 2007
Chelating agents are thought to be useful for the remediation of metal-polluted soils with adequate organic matter, but the effects of these substances on the plants or seed bank of plant communities that occur in the soils are relatively unknown. In this work, the effects of two chelating substances (EDTA and DTPA) on a wet grassland plant community ...
Pastor Piñeiro, Jesús +3 more
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Chelating agents are thought to be useful for the remediation of metal-polluted soils with adequate organic matter, but the effects of these substances on the plants or seed bank of plant communities that occur in the soils are relatively unknown. In this work, the effects of two chelating substances (EDTA and DTPA) on a wet grassland plant community ...
Pastor Piñeiro, Jesús +3 more
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Canadian Journal of Civil Engineering, 1991
This paper describes the effect of the cationic chelating agent penta sodium dithylene triamine penta acetate (DTPA) on anaerobic granular biomass. Batch and continuous tests indicated that acidogenic and methanogenic activity were relatively unaffected by short-term exposure to DTPA. However, long-term exposure to high concentrations (> 1800 mg/L)
K. J. Kennedy +3 more
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This paper describes the effect of the cationic chelating agent penta sodium dithylene triamine penta acetate (DTPA) on anaerobic granular biomass. Batch and continuous tests indicated that acidogenic and methanogenic activity were relatively unaffected by short-term exposure to DTPA. However, long-term exposure to high concentrations (> 1800 mg/L)
K. J. Kennedy +3 more
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