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  • 1
    Electronic Resource
    Electronic Resource
    Studies on induced mutants with reference to species relationships in some tetraploid Triticums (1972)
    Springer
    Theoretical and applied genetics 42 (1972), S. 160-167 
    Details
    ISSN: 1432-2242
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A mutational analysis of five tetraploid species of Triticum was carried out to study different types of systematic mutants. Rare systematic mutants viz., free-threshing mutants and the timopheevioid mutant of T. dicoccum, polonicum-type mutants of T. durum, turgidum-type mutants of T. carthlicum and durum-type mutants of T. turgidum and polonicum, which occurred with consistently high frequencies, are discussed in relation to the phylogenetical interrelationships of these species. The study supports Mac Key's (1966) proposal that all these species would be best grouped as sub-species of Triticum turgidum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00280792
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  • 2
    Electronic Resource
    Electronic Resource
    Estimation of239Pu in urine, influence of Sulkowich reagent (1988)
    Springer
    Journal of radioanalytical and nuclear chemistry 125 (1988), S. 41-46 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Plutonium is known to be co-precipitated with Sulkowich reagent as calcium ammonium oxalate. In adopting this technique for bio-assay of plutonium, its accuracy depends on the self-absorption of the resulting precipitate in each urine sample. Pu recovery experiments were carried out with varying concentration of Ca and Mg, using different volumes of Sulkowich reagent. When the sample volume is 500 ml, Pu in urine can be estimated with an accuracy and precision of 74.38%±7.4%; with a detection limit of 0.06 Bq (1.6 pCi) per dm3. An attempt was made to improve the detection limit, accuracy and precision values. The results obtained are presented in this paper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02041747
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  • 3
    Electronic Resource
    Electronic Resource
    Modified pyrohydrolysis apparatus for the separation of fluorine and chlorine trace impurities from nuclear fuel samples for quality control analysis (1991)
    Springer
    Journal of radioanalytical and nuclear chemistry 148 (1991), S. 93-100 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A quartz pyrohydrolysis apparatus designed for the safe handling of pyrophoric carbide nuclear fuel samples while separating C1 and F trace impurities for quality control analysis is described. It has several advantages over the commonly used pyrohydrolysis apparatus. Performance of the apparatus during routine analysis of a large number of nuclear fuel samples has been found to be quite satisfactory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02060550
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  • 4
    Electronic Resource
    Electronic Resource
    Estimation of natural thorium in low level effluents from processing plants (1992)
    Springer
    Journal of radioanalytical and nuclear chemistry 156 (1992), S. 75-81 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract This is a report of simple estimations of natural thorium in low level effluents generated during the reprocessing of irradiated Th/ThO2 rods for the recovery of233U. The method involved co-precipitation of thorium with ceric iodate at pH 1.29±0.01 and subsequent photometric determination. Conditions were optimised to eliminate the interferences of other ions present in the effluent. Approximately 15 mg each of phosphate, fluoride, and sulphate, 10 mg of iron, and 300 μg zirconium did not interfere in the estimation of 2–5 μg Th/100 ml of the effluent. Average thorium recovery was around 101.9%±2.6% when nearly 10 μg of thorium were spiked.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02037423
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  • 5
    Electronic Resource
    Electronic Resource
    Electrolytic destruction of organic matter in urine (1997)
    Springer
    Journal of radioanalytical and nuclear chemistry 226 (1997), S. 175-179 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A novel electrolytic method has been developed for destroying organic matter in urine. A combination of potassium permanganate, sulfuric acid and nitric acid has yielded about 99% destruction in initial organic content of urine within two hours when electrolysis is carried out with an applied voltage of about 2.5 V, while maintaining a current density of 8.23 mA/cm2 at 373 K.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02063642
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  • 6
    Electronic Resource
    Electronic Resource
    Some improvements in the estimation of137Cs in urine by the AMP-chlorostannate method (1988)
    Springer
    Journal of radioanalytical and nuclear chemistry 125 (1988), S. 431-437 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract An accurate and reliable method has been developed for the estimation of radiocesium in urine. Initially cesium is adsorbed on ammonium phosphomolybdaste (AMP) precipitate and separated by ion exchange from other contaminants. Cesium thus separated is estimated as cesium chlorostannate, Cs2SnCl6, from a 50 (v/v)% solution of concentrated HCl in ethyl alcohol. While the results are in good agreement with the values obtained by γ-spectrometry using a Marinelli beaker in its range of applicability, the present method has a much lower detection limit. It is observed that the method has significant advantages over the methods available with respect to analysis time, accuracy and detection limits.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02041700
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  • 7
    Electronic Resource
    Electronic Resource
    Bioassay Quality Control at IGCAR, Kalpakkam (2000)
    Springer
    Journal of radioanalytical and nuclear chemistry 246 (2000), S. 719-727 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Bioassay group of Indira Gandhi Centre for Atomic Research at Kalpakkam carries out routine surveillance of all radiation workers at the Centre by both whole-body counting and excreta analysis for assessing internal contamination. Various quality control measures adopted and experience gained in participating in inter-laboratory comparisons is highlighted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006768618316
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  • 8
    Electronic Resource
    Electronic Resource
    Carrier-free estimation of106Ru in urine (1994)
    Springer
    Journal of radioanalytical and nuclear chemistry 178 (1994), S. 399-406 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A simple carrier-free method has been developed for estimating 0.1 to 1.1 Bq of106Ru in urine. The organic matter present in urine samples was completely destroyed by wet ashing using nitric acid-peroxide mixture in presence of sulfuric acid. Ruthenium was oxidized to tetroxide using potassium periodate and allowed to react in-situ with polyethylene powder. The powder was separated, washed, pelletized and its β-activity was counted. Recovery of106Ru is found to be better than 80% with a minimum detection limit of 0.2 Bq/dm3 which is less than the DRL value specified by International Commission on Radiological Protection (ICRP).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02039733
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  • 9
    Electronic Resource
    Electronic Resource
    Sequential estimation of106Ru,137Cs, and90Sr in urine (1995)
    Springer
    Journal of radioanalytical and nuclear chemistry 197 (1995), S. 281-293 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A sequential method has been developed for the estimation of106Ru,137Cs, and90Sr in urine using beta counting. After completely destroying the organic matter in urine,106Ru is oxidized to volatile ruthenium tetroxide and allowed to reactin-situ with polyethylene powder;137Cs is concentrated on ammonium phosphomolybdate and estimated as tetraphenylborate;90Sr is coprecipitated as strontium sulphate and converted to carbonate. The recoveries have been found to be better than 83% for all of the radionuclides. The minimum detection limits are 0.16, 0.85, and 0.14 Bq/dm3 for106Ru,137Cs, and90Sr, respectively. Yttrium-90 fraction of90Sr is also estimated using sodium nitroprusside as reagent, after allowing it to grow for 14 days.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02036006
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  • 10
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    Sequential estimation of106Ru,137Cs, and90Sr in urine (1995)
    Springer
    Details
    Publication Date: 1995-11-01
    Print ISSN: 0236-5731
    Electronic ISSN: 1588-2780
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
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