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Moumita Maiti 《Journal of Radioanalytical and Nuclear Chemistry》2013,297(3):319-329
Use of reactor produced radionuclides is popular in life sciences. However, cyclotron production of proton rich radionuclides are being more focused in recent times. These radionuclides have already gained attention in various fields, including life sciences, provided they are obtained in pure form. This article is a representative brief of our contributions in generating nuclear data for the production of proton rich radionuclides of terbium, astatine, technetium, ruthenium, cadmium, niobium, zirconium, rhenium, etc., which may have application in clinical, biological, agriculture studies or in basic research. The chemical data required to separate the product isotopes from the corresponding target matrix have been presented along with a few propositions of radiopharmaceuticals. It also emphasizes on the development of simple empirical technique, based on the nuclear reaction model analysis, to generate reliable nuclear data for the estimation of yield and angular distribution of emitted neutrons and light charged particles from light as well as heavy ion induced reactions on thick stopping targets. These data bear utmost important in radiation dosimetry. 相似文献
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R. Ehrenfeld und A. Indra 《Fresenius' Journal of Analytical Chemistry》1910,49(2):120-121
Ohne Zusammenfassung 相似文献
126.
Irdhawati Irdhawati Hirosuke Tatsumi Indra Noviandri Buchari Buchari Slamet Ibrahim 《中国化学会会志》2012,59(1):40-45
The transfer on phenylpropanolamine ion, PPAH+, has been studied at the Interface between Two Immiscible Solutions (ITIES). The polarizable potential range was determined by cyclic voltammetry at the interface between an aqueous solution of lithium chloride (LiCl) and a nitrobenzene (NB) solution of electrolyte tetrabutylammonium tetraphenylborate (TBATPB). The half‐wave potential of ion transfer for phenylpropanolamine accross the water|NB interface was found 465.3 mV. The peak separation, the diffusion coefficient, and the standard ion transfer potential of PPAH+ were observed to be 59.1 mV, 1.7 × 10?6 cm2/s, and 104.6 mV, respectively. The temperature of experiment was kept constantly at 25 ± 1 °C using water flow thermostate. 相似文献
127.
Moumita Maiti Susanta Lahiri B. S. Tomar 《Journal of Radioanalytical and Nuclear Chemistry》2012,291(2):427-432
149Gd was produced from the 12C induced reaction on natural praseodymium target. No-carrier-added (nca) 149Gd was separated from the bulk target matrix by liquid–liquid extraction (LLX) using cation exchanger di-(2-ethylhexyl)phosphoric
acid (HDEHP) dissolved in cyclohexane. High separation factor of 2,450 was achieved at the optimal experimental condition
when 1% HDEHP and 0.1 M HCl were used as organic and aqueous phases respectively. The result was also compared with the previous
reports. 相似文献
128.
Indra Rajasingh Albert Muthumalai R. Bharati A. S. Shanthi 《Journal of mathematical chemistry》2012,50(5):1200-1209
Molecules arranging themselves into predictable patterns on silicon chips could lead to microprocessors with much smaller circuit elements. Mathematically, assembling in predictable patterns is equivalent to packing in graphs. An H-packing of a graph G is a set of vertex disjoint subgraphs of G, each of which is isomorphic to a fixed graph H. If H is the complete graph K 2, the maximum H-packing problem becomes the familiar maximum matching problem. In this paper we give algorithms to find a perfect packing of HC(n) with P 6 and K 1,3 when n is even and thus determines their packing numbers. Further we also study the packing of HC(n) with 1, 3-dimethyl cyclohexane. 相似文献
129.
The determination of the sequence selectivity of DNA-damaging agents is very important in elucidating the mechanism of action of anti-tumour drugs. The development of automated capillary DNA sequencers with fluorescent labelling has enabled a more precise method for DNA sequence specificity analysis. In this work we utilized the ABI 3730 capillary sequencer with laser-induced fluorescence to examine the sequence selectivity of cisplatin with purified DNA sequences. The use of this automated machine enabled a higher degree of precision of both position and intensity of cisplatin-DNA adducts than previously possible with manual and automated slab gel procedures. A problem with artefact bands was overcome by ethanol precipitation. It was found that cisplatin strongly formed adducts with telomeric DNA sequences. 相似文献
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