Inorganic carbon

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  • In this, the second volume of the two-volume review of carbonates in continental settings, we continue our survey of the important aspects of their formation and utilisation.Whereas the first volume emphasised the formation of carbonate sediments, covering the depositional settings, facies and sedimentological processes; this second volume examines the geochemistry, diagenesis, sequence stratigraphy of these deposits, along with some of the practical applications. The geochemistry of continental carbonates is discussed in depth in Chapter 1.

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  • (BQ) Part 2 book "Handbook of inorganic chemistry" has contents: Nickel carbonate, niobium pentafluoride, palladium dichloride, palladium nitrate, phosphonium iodide, phosphorus trichloride, platinum tetrachloride, potassium chlorate,...and other contents.

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  • This report describes the presence of a unique dual domain carbonic anhydrase (CA) in the giant clam,Tridacna gigas. CA plays an important role in the movement of inorganic carbon (Ci ) from the surrounding sea-water to the symbiotic algae that are found within the clam’s tissue. One of these isoforms is a glycoprotein which is significantly larger (70 kDa) than any previously reported from animals (generally between 28 and 52 kDa).

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  • The synthesis and characterization of activated carbons (ACs) obtained from lignocellulosic precursors is a topic widely studied by a number of researchers worldwide. In the last decades, an increase has been observed in the number of publications related to the synthesis, modification, characterization and application of ACs obtained from lignocellulosic materials. Particularly, the applications of these carbons are primarily focused in the removal of several inorganic and organic pollutants from water and wastewaters....

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  • Chemical Reference Materials: Setting the Standards for Ocean Science is part of an evolving body of work being conducted by scientists and research sponsors interested in ensuring the quality control of oceanographic data. Chemical data collected during ongoing and future global oceanographic studies and time-series efforts must be comparable over time and among laboratories.

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  • Ribulose 1,5-bisphosphate carboxylase/oxygenase (RuBisCO) is the key enzyme of the Calvin cycle, catalyzing the fixation of inorganic carbon dioxide to organic sugars. Unlike most enzymes, RuBisCO is extremely slow, substrate unspecific, and catalyzes undesired side-reactions, which are considered to be responsible for the slow deactivation observed in vitro, a phenomenon known as fallover.

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  • The oceans cover over 70% of our planet's surface. Their physical, chemical and biological properties form the basis of the essential controls that facilitate life on Earth. Current concerns such as global climate change, pollution of the world's oceans, declining fish stocks, and the recovery of inorganic and organic chemicals and pharmaceuticals from the oceans call for greater knowledge of this complex medium. This volume brings together a number of experts in marine science and technology to provide a wide-ranging examination of some issues of major environmental impact....

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  • Ocean research offers countless benefits, from improving fisheries management to discovering new drugs to enabling early detection of tsunamis and hurricanes.

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  • The abundance of the doubly substituted CO2 isotopologue, 13C18O16O, in CO2 produced by phosphoric acid digestion of synthetic, inorganic calcite and natural, biogenic aragonite is proportional to the concentration of 13C–18O bonds in reactant carbonate, and the concentration of these bonds is a function of the temperature of carbonate growth. This proportionality can be described between 1 and 50 C by the function: D47 = 0.0592 Æ 106 Æ T2  0.

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  • Biochemistry is the study of the chemical composition and reactions of living matter. All chemicals in the body fall into one of two major classes: organic or inorganic compounds. Organic compounds contain carbon. All organic compounds are covalently bonded molecules, and many are large. All other chemicals in the body are considered inorganic compounds. These include water, salts, and many acids and bases. Organic and inorganic compounds are equally essential for life.

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  • B. Sắc ký khí (Gas-Liquid Chromatography) Thermal Conductivity Detector (TCD) B. Sắc ký khí (Gas-Liquid Chromatography) Flame Ionization Detector (FID) Sensitive towards organics  Analyte is burned in H2/air, which produces CH and CHO+ radicals  CHO+ radicals are reduced at a cathode which produces a current proportional to the radical quantity  10-12 A  Specific for organic carbon, insensitive to inorganics, CO2, SO2 etc.  Generally DL 100x less than TCD about pg/s (flow rate dependent)  Response to specific organic depends on the number of organic carbons. ...

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  • Nanocrystals have been attracting much attention for future science and technology. Chapters are sought that address innovative solutions to the design, synthesis, crystallization, morphology control, self-assembly, nano/micro-structure formation, patterning, novel property and device application of Nanocrystals. The book involves Nanocrystals of metal oxides, semiconductors, compounds, noble metals, metals, inorganic materials, carbon materials, organic molecules, polymers, bio materials, hybrid materials, composites, etc....

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  • In organic chemistry, a carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom: C=O. It is common to several classes of organic compounds, as part of many larger functional groups. The term carbonyl can also refer to carbon monoxide as a ligand in an inorganic or organometallic complex. Other organic carbonyls are urea and the carbamates, the derivatives of acyl chlorides chloroformates and phosgene, carbonate esters, thioesters, lactones, lactams, hydroxamates, and isocyanates.

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  • Glassware must be scrupulously cleaned. Clean all glassware as soon as possible 3 after use by rinsing with the last solvent used in it. Solvent rinsing should be followed by detergent washing with hot water, and rinses with tap water and distilled water. The glassware should then be drained dry, and heated in a muffle furnace at 400°C for 15-30 minutes. Some thermally stable materials may not be eliminated by this treatment. Solvent rinses with acetone and pesticide quality hexane may be substituted for the muffle furnace heating.

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  • Both direct emission from fires and ash resuspension from burnt soils could be an important source of airborne PM10. This pyrogenic material, which is composed of organic matter, black carbon and inorganic material, is to a large extent present in the size range below 10 µm and so can be resuspended by wind [17]. Although the contribution to ambient aerosol from fire smoke will generally be episodic, in areas where there is a constant forest burning, the particulate emission from this source could be significant.

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  • We used mill-level production and pollution data to estimate (1) the effect of China’s system of pollution control levies on three environmental effluents, and then (2) examined further the effect of this system of levies on the technical efficiency of mill-level production. Our results show that the pollution levies worked for those larger establishments that were the main targets of reform policies in this period.

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  • Mercury can exist in many different chemical and physical forms in the environment (see Box 2). Those different forms are called “species.” In this document, we will use the general term “mercury” to refer to all forms of the element, while “methylmercury” will be used to distinguish organometallic mercury compounds (essentially those that contain carbon) from inorganic forms of mercury. Pure mercury is known as elemental mercury or metallic mercury.

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  • Chelators: Chelated iron and other chelated nutrients are used when a direct dose of a particular nutrient is needed to quickly solve a deficiency. Chelated products are organic compounds with attached inorganic metal molecules, which are more available for plant use. Compost, humus, humic acid, and microorganisms have natural chelating properties. Chemically, lime is the oxide of calcium, with the formula CaO. It occurs in limestone, marble, and chalk as calcium carbonate. Finely ground limestone is the best form to use because it will be more available to plants.

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