Results 101 to 110 of about 3,595 (149)
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Optimization of radioisotope gamma methods for monitoring the iron content of ores
Soviet Mining Science, 1987The authors discuss methods for optimizing the sensitivity and accuracy of gamma spectroscopic and x-ray fluorescence analysis techniques for monitoring the iron content of coal under conditions of varying moisture and ash content. Corrections for scattered gamma radiation and x-ray fluorescence in the face of these variations are considered.
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Isotopenpraxis Isotopes in Environmental and Health Studies, 1976
The effect of contamination of a cyanide, phosphate-buffered gold-plating bath with iron, cobalt, or nickel on the codeposition of these metals with gold, was investigated using 59Fe, 58Co and 63Ni. It was shown that cobalt and nickel were practically not codeposited in gold if present in the solution in amounts up to 1000 or 2000 mg/dm3 respectively ...
W. Ławicki, K. S. Kasprzak, S. Magas
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The effect of contamination of a cyanide, phosphate-buffered gold-plating bath with iron, cobalt, or nickel on the codeposition of these metals with gold, was investigated using 59Fe, 58Co and 63Ni. It was shown that cobalt and nickel were practically not codeposited in gold if present in the solution in amounts up to 1000 or 2000 mg/dm3 respectively ...
W. Ławicki, K. S. Kasprzak, S. Magas
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Cancer Research, 2013
Abstract Background: The SentiMag study compares the “gold standard” 99mTc with a new technique, which employs superparamagnetic iron oxide particles (SPIO) for localization of sentinel lymph nodes. Aim of this study is to investigate the potential equivalency of the SentiMag® technique in comparison to the gold standard ...
M Thill +7 more
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Abstract Background: The SentiMag study compares the “gold standard” 99mTc with a new technique, which employs superparamagnetic iron oxide particles (SPIO) for localization of sentinel lymph nodes. Aim of this study is to investigate the potential equivalency of the SentiMag® technique in comparison to the gold standard ...
M Thill +7 more
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Study of iron oxidation in sulfur dioxide atmospheres by means of the35S radioisotope
Oxidation of Metals, 1977Results of investigations of the mechanism of iron oxidation in atmosphere containing sulfur dioxide are presented. Experiments were carried out both by the platinum marker method and by means of the two -stage oxidation method using sulfur dioxide labeled with the35S radioisotope. SO2 partial pressures applied were 0.03 and 1 atm at 800°C.
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A radioisotope method for testing the content of pearlite in wear-resistant cast iron
Russian Journal of Nondestructive Testing, 2007A radioisotope X-ray fluorescence method for determining the content of manganese in wear-resistant cast iron and subsequent determination of the content of pearlite using a correlation equation is presented. Its physical concept is based on the use of an experimental sensor with a movable selective chrome filter, which enables the characteristic X-ray
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Journal of Biomedical Nanotechnology, 2008
Magnetic gold-coated iron oxide nanoparticles (Fe@Au NPs) have recently emerged as a new type of iron oxide nanoparticle based magnetic resonance imaging (MRI) contrast agents, in which the gold shell provides a conveniently tunable surface for the presentation of multiple functional molecules.
You-Fu Zhou +7 more
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Magnetic gold-coated iron oxide nanoparticles (Fe@Au NPs) have recently emerged as a new type of iron oxide nanoparticle based magnetic resonance imaging (MRI) contrast agents, in which the gold shell provides a conveniently tunable surface for the presentation of multiple functional molecules.
You-Fu Zhou +7 more
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Canadian Journal of Chemistry, 2009
Novel 11C-radiolabelling method was applied for the investigation of methanol conversion on iron oxide modified mesoporous MCM-41. Changes in the selectivity were observed varying the state of the loaded iron species or the degree of the surface coverage with 11C-radiolabelling methanol.
Eva Sarkadi-Pribóczki +2 more
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Novel 11C-radiolabelling method was applied for the investigation of methanol conversion on iron oxide modified mesoporous MCM-41. Changes in the selectivity were observed varying the state of the loaded iron species or the degree of the surface coverage with 11C-radiolabelling methanol.
Eva Sarkadi-Pribóczki +2 more
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Talanta, 1967
The Chromatographic behaviour of nanogram amounts of antimony in ethyl ether medium was studied by radioisotope techniques on cellobiose, cellulose and seven substituted celluloses. It was found that antimony is strongly retained and can be separated from macro amounts of manganese, iron, gold, uranium, mercury, arsenic and several other metals ...
R A, Muzzarelli, G, Marcotrigiano
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The Chromatographic behaviour of nanogram amounts of antimony in ethyl ether medium was studied by radioisotope techniques on cellobiose, cellulose and seven substituted celluloses. It was found that antimony is strongly retained and can be separated from macro amounts of manganese, iron, gold, uranium, mercury, arsenic and several other metals ...
R A, Muzzarelli, G, Marcotrigiano
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Gematologiia i transfuziologiia, 1994
Before and after treatment iron metabolism was evaluated in 37 iron deficient women given intravenous Ferrum Lek. In addition to standard blood counts and serum iron tests, iron metabolism was investigated with Fe-59 whole body radiometry in a low-background camera. The treatment effect was assessed in 1.3 and 6 months.
N P, Matveeva +3 more
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Before and after treatment iron metabolism was evaluated in 37 iron deficient women given intravenous Ferrum Lek. In addition to standard blood counts and serum iron tests, iron metabolism was investigated with Fe-59 whole body radiometry in a low-background camera. The treatment effect was assessed in 1.3 and 6 months.
N P, Matveeva +3 more
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The International Journal of Applied Radiation and Isotopes, 1972
Abstract A description is given of a simple radioisotope X-ray technique of analysis for an element in samples containing high concentrations of another element of slightly lower atomic number. Sensitivity of analysis is achieved by use of a radiator foil whose fluorescent X-rays can be excited only by the higher of the two close-in-energy X-ray ...
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Abstract A description is given of a simple radioisotope X-ray technique of analysis for an element in samples containing high concentrations of another element of slightly lower atomic number. Sensitivity of analysis is achieved by use of a radiator foil whose fluorescent X-rays can be excited only by the higher of the two close-in-energy X-ray ...
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