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Displaying 1151 - 1175 of 3672

X-ray Emission Spectroscopy of Nitrogen-rich Compounds

March 31, 2011
Author(s)
Terrence J. Jach, Fernando D. Vila, W. T. Elam, J. D. Denlinger, John J. Rehr
Non-resonant x-ray emission spectroscopy was used to compare the nitrogen-rich compounds ammonium nitrate, trinitrotoluene, and cyclotrimethylene-trinitramine. They are representative of crystalline and molecular structures of special importance in

Ozone-Depleting Substances (ODSs) and Related Chemicals, Chapter 1 in Scientific Assessment of Ozone Depletion: 2010, Global Ozone Research and Monitoring Project-Report No.52, 516 pp., World Meteorological Organization, Geneva, Switzerland, 2011.

March 30, 2011
Author(s)
Stephen A. Montzka, S. Reimannander, Andreas Engel, Kirstin Kruger, O?Doherty Simon, William T. Sturges , Donald R. Blake , Marcel Dorf Dorf, Paul J. Fraser , Lucien Froidevaux , Kenneth Jucks, Karin Kreher, Michael J. Kurylo III, Abdelwahid Mellouki , John Miller , Ole J. Nielsen , Vladimir L. Orkin, Ronald G. Prinn , Robert Rhew , Michelle L. Santee , Andreas Stohl , Daniel P. Verdonik
The present document will be part of the information upon which the Parties to the United Nations Montreal Protocol will base their future decisions regarding protection of the stratospheric ozone layer. OVERVIEW It has been recognized since the 1970s that

Quantification and Compensation of Unintentional Analyte Aggregation in Electrospray Sampling

March 30, 2011
Author(s)
Mingdong M. Li, Suvajyoti S. Guha, Rebecca A. Zangmeister, Michael J. Tarlov, Michael R. Zachariah
Electrospray (ES) sources are commonly used to introduce non-volatile materials (e.g. nanoparticles, proteins, etc.) in to the gas phase for characterization by mass spectrometry and ion mobility. Recent studies in our group using electrospray ion mobility

A Human Urine Standard Reference Materials for Accurate Assessment of Arsenic Exposure

March 17, 2011
Author(s)
Lee L. Yu, Carl Verdon, William C. Davis, Gregory C. Turk, Kathleen Caldwell, Robert Jones, Brian Buckley, Ruimin Xie
Arsenic is a toxic element, and the toxicity of the element is dependent upon the molecular form it is in. Accurate assessments of arsenic exposure require the measurement of a complete panel of inorganic, organic, and metabolite As species in urine
Displaying 1151 - 1175 of 3672
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