PPT-P11E-1876: Oxygen Isotopic Analysis of Water Extracted from

Martian Meteorite NWA 7034 Morgan H Nunn 1 Carl B Agee 2 and Mark H Thiemens 1 Dept of Chemistry amp Biochemistry UC San Diego La Jolla CA 920930365 USA Email . Rajesh Agnihotri. 1*. , S.G. Karapurkar. 2. , V.V.S.S. Sarma. 3. , P. Praveen. 3. , M.D. . Dileep. Kumar. 2.  . 1. CSIR-National Physical Laboratory, New Delhi, 110012, India, . 2. CSIR-National Institute of Oceanography, Dona Paula Goa 403004, India, . Lecture 31 . Mass Dependent Fractionation. . If . a 4‰ fractionation of . δ. 18. O . is observed in a particular sample, what value of . δ. 17. O . do we predict? . We might guess it would ½ as much. . University of California, San Diego. Department of Chemistry and Biochemistry. Gerardo Dominguez. Mark Thiemens. Why Oxygen?. Foundations. Foundations in Equilibrium Thermodynamics. Partition Functions depend on. Understand that air is a mixture of gases.. State the composition of air.. Show that approximately one fifth of air is oxygen.. Show that there is CO. 2. and water vapour in air.. Demonstrate and describe what happens when a wooden splint is burned in air.. 3. N in the massive star-forming region Sgr B2(M). Takahiro Oyama. , Rin Abe, Ayane Miyazaki, . Mitsunori Araki, Shuro Takano, Nobuhiko Kuze,. Yoshihiro Sumiyoshi, and Koichi Tsukiyama. ・. Isotopic ratios of HC. Lecture 33 . Stable Isotopes in the Hydrosphere and Biosphere. Isotopic Fractionation in the Hydrosphere. δ. 18. O in the oceans is nearly constant at 0. However, as a consequence of Rayleigh fractionation and temperature dependence of the water-vapor fractionation factor, the isotopic composition of precipitation varies widely.. AND RESERVOIRS. SOLUBILITY OF OXYGEN IN WATER RELATIVE TO PRESSURE. SOLUBILITY OF OXYGEN IN WATER RELATIVE TO TEMPERATURE. OXYGEN. SOURCES. ATMOSPHERE. PHOTOSYNTHESIS. LOSSES. CHEMICAL . HUMIC ACIDS. Climate is influenced by a variety of processes, including geologic processes. Volcanism. Sea-floor spreading. Configuration of landmasses due to plate tectonics. Climate changes impact geologic processes. William G. Maddox. Environmental Specialist II, Valley Regional Office. Department of Environmental Quality. 4411 Early Road, Harrisonburg, Virginia. Office: 540-574-7831, FAX: 540-574-7878. William.Maddox@deq.virginia.gov. Ventura Pier, Harbor and Estuary. Objective. : . Sample water at each location to compare abiotic differences in the water to the plankton distribution.. Methods. : . Use a plankton net to concentrate organisms for comparison at each location. Analyze water samples at each location to find pH, dissolved oxygen, phosphate levels, nitrate levels, temperature and turbidity.. Melnik. & Stephanie . Felten. University of Utah. Isotopic Labeling. References: . http://en.wikipedia.org/wiki/Isotopic_labeling. , . http://en.wikipedia.org/wiki/Crossover_experiment_%. 28chemistry%29. Presently progress as been in the following areas:. Establishing the physics basis of the need to resolve isotopic content down to the 1%-concentration level, including. Impact on the ICRH heating properties in the high-power H-mode plasmas needed for DTE2. Atropine . Biological source: . Atropine is a . tropane. alkaloid obtained from the fresh or dried leaves and flowering tops of . Atropa. belladonna, . Datura. . stramonium. (Not less than 0.25%) and . PART II. DEPARTMENT OF CHEMISTRY SGGSJ GC PAONTA SAHIB. TOPICS TO BE COVERED IN THIS LECTURE. Determination of dissolved oxygen of a water sample. Determination of Ph ,acidity and alkalinity of a water sample.