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Showing 1 to 20 of 370 for “"Iodine"”.
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IODINE SPECIATION IN MARINE AEROSOL
Iodine chemistry in the marine aerosol plays important roles in the marine boundary layer such as ozone destruction and new aerosol particle formation. Iodine has a complex chemistry in the gas and aerosol phases and to date, what controls iodine speciation, the interactions and roles of individual …
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Molecular Addition Compounds of Iodine
Made available in DSpace on 2014-12-05T19:37:37Z (GMT). No. of bitstreams: 1 6100194.pdf: 2753364 bytes, checksum: d91cea7faf38fbea16bf1dbc90fe2ef4 (MD5) Previous issue date: 1960
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The Biogeochemistry of Iodine in Seawater
<p>Iodate and iodide are the two major species of iodine in seawater. In comparison to iodate, iodide is thermodynamically unstable in oxic seawater. The conversion (or reduction) of iodate to iodide may be mediated via biological activities. Since biological activities vary with the season, the …
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Observations on the action of Iodine
… Watson suggested I should study the injection of iodine intravenously. I chose twelve cases at random, and the following is an account of the preparation used; the technique; and the results.
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Hypervalent iodine reagents for protein functionalisation
The efficacy of natural post-translational pathways in modifying specific amino acid residues has inspired the discovery of chemical methods that expand protein diversity and function. Methionine, a natural antioxidant in biological systems, provides a distinct handle for modification without …
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Bromine and iodine in plant-soil systems
Brom und Jod kommen in von Folge sowohl natürlichen als auch anthropogenen Prozessen (z.B.Verdunstung von Meerwasser, Verbrennung von Biomasse) als Spurenelemente in der Biosphäre vor. Obwohl das Verhalten von Halogenen in der Umwelt intensiv untersucht worden ist, bestehen nach wie vor große …
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Spectroscopic characterization of molecular and atomic iodine
… looks to characterize molecular and atomic iodine to benefit to the ability of molecular iodine to act as a biocidal agent. There is much literature on the topic of iodine as a bacterial suppressant and the effectiveness of various mixtures. However, there is little research available that …
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The heat of fusion of iodine and the use of liquid iodine as a solvent in determining molecular weights
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1912.
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Dissolved inorganic and particulate iodine in the oceans
… determination of iodate, iodide and particulate iodine in sea water. Iodate is converted to tri-iodide and the absorbance of tri-iodide at 353 nm is measured. The precision of this method is ca. ±3%. Iodide is first separated from most other anions by an AG 1-x8 anion exchange column and then …
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INVESTIGATIONS OF HYPERVALENT IODINE COMPOUNDS IN ORGANIC TRANSFORMATIONS
… various organic transformations with hypervalent iodine compounds, which have attracted explosive interest among chemistry communities because of their versatility and mildness in inducing many organic transformations. Chapter 1 briefly introduces the history of hypervalent iodine compounds, …
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Non-Volatile Dissolved Organic Iodine in Marine Water
… The concentration of DOI is estimated as total iodine (TI) minus total inorganic iodine (TII). The concentration of total iodine is determined as [special characters omitted] after DOI has been oxidized to inorganic iodine quantitatively by intensive UV-irradiation and all the inorganic iodine …
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Iodine in sea ice and the polar atmosphere.
The volatilisation of iodine from the ocean and release to the atmosphere in the ice-covered polar regions has been studied. Laboratory experiments involving sea ice- and ice associated- diatoms have shown how the extreme conditions experienced in sea ice brine channels may lead to an increase in …
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Scientific principles for the electric oxygen-iodine laser
… scientific understanding of the electric oxygen-iodine laser (EOIL). The research reported on herein was largely conducted between the years of 2006 and 2011. The work comes on the forefront of EOIL development, recently demonstrated in 2005 with positive gain and lasing through a long-term …
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Multiphoton ionization photoelectron spectroscopy of iodine-bearing molecules
Multiphoton ionization of iodine-bearing molecules has been studied, under collision-free conditions, by observing the kinetic energy of the ejected photoelectrons. These experiments have demonstrated that, for photoionization of I$\sb2$, CF$\sb3$I and HI at 532 nm, the scission of the R-I bond …
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Lead, bromine, chlorine, and iodine in polluted air.
Massachusetts Institute of Technology. Dept. of Meteorology. Thesis. 1965. M.S.
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Dissolved inorganic and particulate iodine in the oceans.
Thesis. 1976. Ph.D.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Sciences.
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The risk and severity of preeclampsia secondary to iodine deficiency and iodine deficiency-mediated subclinical hypothyroidism: mechanisms and early cardiovascular consequences
Background Iodine deficiency affects about 2 billion people globally and is the leading cause of Subclinical (SCH) and overt (OH) hypothyroidism that are some of the risk factors of preeclampsia. Iodine deficiency in pregnancy, which can be corrected by supplementation, has been suggested in the …
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