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  • Author or Editor: M. Jalil x
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Abstract  

Rock samples which contain relatively high concentrations of uranium may create problems of interference produced by fission products, when instrumental neutron activation analysis is used. The isotopes95Zr,140La,141Ce, 143Ce and 147Nd, which are commonly used in the neutron activation analysis of the corresponding elements, are also produced as fission products of235U. For each of these radioisotopes, a contribution factor is calculated theoretically and meaured experimentally using geological samples with different uranium contents.

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Abstract  

In recent years, several groups have reported measurement of a finite non-resonant photoactivation cross section for 115In. Present evaluations of this same parameter have made use of an irradiation arrangement and detector which differ from those of other groups. Our values for the resonant and non-resonant contribution to the photoactivation cross-section are (1.6±0.3)·10–28 cm2 keV and (4.0±0.9)·10–32 cm2, respectively, comparing favourably with counterpart results by TUSTONIC et al.5 of (1.3±0.1)·10–28 cm2 keV and (5.5±0.8)·10–32 cm2.

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Journal of Radioanalytical and Nuclear Chemistry
Authors: R. Itawi, S. Al-Jobori, M. Jalil, S. Farhan, A. Mheemeed, Kh. Saaeed and E. Ahmed

Abstract  

Eleven food colouring substances are analyzed for their elemental content by the method of instrumental neutron activation analysis, and the concentrations of fourteen elements present in these samples are presented.

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Journal of Radioanalytical and Nuclear Chemistry
Authors: R. Itawi, S. Al-Jobori, M. Jalil, S. Farhan, A. Mheemeed, Kh. Saaeed and E. Ahmed

Abstract  

Thirteen textile dyes have been analyzed by the method of insturmental neutron activation analysis for their components of major and trace elements, and the concentration of thirteen elements in these samples are presented.

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Abstract  

As a part of the Iraqi Food Analysis Programme /I.F.A.P./ the concentration of Na, Mg, P, Cl, K, Ca, Zn, Se, Br, Rb and I in natural milk collected from different regions of Iraq, and in milk powder samples have been determined by using the NAA technique. It was found that except for the elements I, Rb and Br the concentration of the elements was approximately identical in both the natural milks and milk powders.

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Abstract  

Vegetable samples collected from different locations in Iraq have been analyzed by the method of instrumental neutron activation analysis for the determination of its content of major, minor and trace elements. Twenty types of vegetables have been analyzed and the concentrations of sixteen elements are presented.

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Summary  

1-[2-(2-Fluoroethoxy)ethyl]-2-1H-nitroimidazole (3a), 1-{2-[2-(2-fluoroethoxy)ethoxy]ethyl}-2-1H-nitroimidazole (3b) and 1-(2-{2-[2-(2-fluoroethoxy)ethoxy]ethoxy}ethyl)-2-1H-nitroimidazole (3c) were synthesized in a two step sequence.Coupling the ditosylate of di-, tri- or tetraethylene glycol with 2-nitroimidazole followed by fluoride substitution afforded the reference compounds in high yield and18F labeling gave the corresponding markers in 70-82% radiochemical yield.

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