Dissolved temperature catalytic oxidation

Sugimura, Y., and Y. Suzuki. 1988. A high temperature catalytic oxidation method for the determination of non-volatile dissolved organic carbon in seawater by direct injection of a liquid sample. Marine Chemistry 41 105-131. 

Solomon CM, Lessard EJ, Keil RG, Foy MS (2003) Characterization of extracellular polymers of Phaeocystis glob-osa and P. antarctica. Mar Ecol Prog Ser 250 81-89 Sugimura Y, Suzuki Y (1988) A high temperature catalytic oxidation method for the determination of non-volatile dissolved organic carbon in seawater by direct injection of a liquid sample. Mar Chem 24 105-131 Sunda WG, Huntsman SA (1995) Iron uptake and growth limitation in oceanic and coastal phytoplankton. Mar Chem 50 189-206... 

Spyres G, Nimmo M, Worsfold PJ, Achterberg EP, and Miller AEJ (2000) Determination of dissolved organic carbon in seawater using high temperature catalytic oxidation techniques. Trac-Trends in Analytical Chemistry 19 498-506. 

Methods for the oxidation of DOC fall into two basic categories, high temperature catalytic oxidation (HTCO) and wet chemical techniques including UV photooxidation. The use of high temperature catalytic oxidation for the conversion of organic carbon into carbon dioxide is described in Chapter 15 of this volume, and the use of a system based on UV photooxidation of dissolved organic carbon is described in the following sections. 

Merriam J., McDowell W.H., and Currie W.S. 1996. A high-temperature catalytic oxidation technique for determining total dissolved nitrogen. /. Soil Sci. Soc. Am. 60 1050-1055. 

A detailed review of the stabilities of inorganic selenium species, i.e. Se and Se, in water has been published (Heninger et al., 1997). No loss of either species was detected in aqueous solutions stored at — 20°C for 1 year. The concentrations studied were 10 and SOngmF1 (Cobo et al., 1994). Losses of Se occurred at higher temperatures for solutions of pH 2 and 6 stored in polyethylene containers. The maximum time for preservation was 1-2 months. In another investigation (Heninger et al., 1997), aqueous samples stored in Teflon containers at 4°C lost 29% of Se by oxidation in less than 1 month. The authors stated that catalytic oxidation of Se had occurred as a result of chlorine produced by a reaction between dissolved chloride and oxygen. 

Praseodymium tri-iodide, Prl3, as the starting material for reduction reactions, might be easily produced by the oxidation of praseodymium metal with elemental iodine [17]. With catalytic amounts of hydrogen dissolved in praseodymium metal powder, the reaction temperature can be as low as 230 °C [18]. Sublimation in high vacuum in tantalum tubes yields pure Prl3. 

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