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971.
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Mahesha Priyanka Shetty Nitinkumar S. Kulkarni Suresh D. 《Journal of fluorescence》2022,32(3):835-862
Journal of Fluorescence - Disclosure of new molecular probes as chromogenic and fluorogenic cation sensors is scientifically exigent work. Recently chalcone derivatives gained more attention... 相似文献
975.
B. F. O. Costa M. Blumers S. I. Shylin V. Ksenofontov O. Oni S. Kasten D. Fischer L. Wagenknecht A. Kulkarni M. W. Friedrich G. Klingelhöfer 《Hyperfine Interactions》2016,237(1):76
57Fe Mössbauer spectroscopy (MS) and X-ray fluorescence spectroscopy (XRF) were used to determine the identity of iron(III) oxides in surface (top 30 cm ) and subsurface (> 30 cm – 500 cm)sediments from the Helgoland mud area in the German Bight of the North Sea. A 500 cm-long sediment core was cut in 25cm sections while only the top 10 cm of a 30 cm-long sediment core was sampled. Using a MIMOS spectrometer, MS spectra were recorded at 293K (RT) in backscattering geometry. At 80K and 5.5K, MS analysis was carried out in transmission geometry. At RT and 80K only illite was observed, but at 5.5K lepidocrocite was revealed in the MS spectra. The relation between Fe(III) and Fe(II) doublets of illite did not significantly vary with depth, but the relative amount of lepidocrocite increased with depth reaching about 24 % of iron phases, as revealed by MS. XRF measurements showed that the amount of Fe in the sediments varied with depth but was always less than 4 % of total elemental composition. The main component of the sediment was silica and its depth profile alternated with those of other elements, especially aluminium and iron. It was observed that elevated concentrations of dissolved iron in the subsurface sediment of the Helgoland mud area correlated with the depth-wise distribution of distinct microbial populations presumably due to microbial reduction of excess bioavailable iron minerals such as lepidocrocite. These results are thus, important in the context of microbe-mineral interactions in marine sediments as iron oxides are an electron acceptor for microbial anaerobic respiration. 相似文献
976.
Sahoo G. S. Tripathy S. P. Paul S. Sharma S. C. Joshi D. S. Bandyopadhyay T. Kulkarni M. S. 《Journal of Radioanalytical and Nuclear Chemistry》2020,323(3):1291-1297
Journal of Radioanalytical and Nuclear Chemistry - While measuring the neutron dose in accelerator radiation environment using CR-39 detector for radiation protection purpose, LET (linear energy... 相似文献
977.
Anugula Nagaraju B. Janaki Ramulu Gaurav Shukla Abhijeet Srivastava Girijesh Kumar Verma Keshav Raghuvanshi Maya Shankar Singh 《Tetrahedron letters》2014
An operationally simple, economical, and straightforward synthesis of diverse 4,5-disubstituted 1,2,3-thiadiazoles from α-enolicdithioesters has been achieved via nitrosation/reduction/diazotization/cyclization sequence in one-pot through the formation of cascade 1–2 (N–S) and 3–4 (C–N) bonds. Importantly, this is the first straightforward entry to highly functionalized 1,2,3-thiadiazoles from dithioesters. 相似文献
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Kulkarni Ulka K. Kulkarni Krishna V. Pardeshi Rajendra K. Mane Dhananjay V. 《平面色谱法杂志一现代薄层色谱法》2016,29(6):477-479
JPC – Journal of Planar Chromatography – Modern TLC - 相似文献