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Isotopically Labelled Phosphorus Compounds: Some Deuterated Methyl and Ethyl Derivatives
Phosphorus, Sulfur, and Silicon and the Related Elements, 2006The synthesis of fifteen phosphylated compounds having P─OCD3, P─CD3, or P─OCD2CH3 groups is described. Selective chemistry for the precise placement of the deuterated groups was devised, and the products were isolated in a high purity in generally good yields.
Joanna L. Mundy +3 more
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Soil Science Society of America Journal, 1988
Abstract A procedure using 32 P isotopic exchange kinetics was suggested to characterize the availability of soil P. The ratio of the radioactivity remaining in the solution over the total radioactivity ( r 1 /
T. Sen Tran, M. Giroux, J. C. Fardeau
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Abstract A procedure using 32 P isotopic exchange kinetics was suggested to characterize the availability of soil P. The ratio of the radioactivity remaining in the solution over the total radioactivity ( r 1 /
T. Sen Tran, M. Giroux, J. C. Fardeau
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Electron Spin Coherence of Phosphorus Donors in Isotopically Purified 29Si
Journal of Superconductivity, 2005We investigate spin coherence time of electrons bound to phosphorus donors in silicon single crystals, employing a pulsed electron paramagnetic resonance technique. The samples were isotopically controlled so that they may possess different concentrations (about 5% and 100%) of 29Si, which is the only non-zero-spin (spin-1/2) stable isotope of Si. Both
E. Abe, J. Isoya, K. M. Itoh
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Environmental Science & Technology
Long-term phosphorus (P) fertilization results in P accumulation in agricultural soil and increases the risk of P leaching into water bodies. However, evaluating P leaching into groundwater is challenging, especially in clay soil with a high P sorption capacity.
Takuya Ishida +7 more
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Long-term phosphorus (P) fertilization results in P accumulation in agricultural soil and increases the risk of P leaching into water bodies. However, evaluating P leaching into groundwater is challenging, especially in clay soil with a high P sorption capacity.
Takuya Ishida +7 more
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Soil Science Society of America Journal, 1994
Abstract In fertilized agricultural soils, both fertilizer and soil P are partly depleted by crop export, while residual fertilizer P reacts with the soil. As a result, P availability changes in complex ways that cannot be described by an available P pool.
Morel, Christian +3 more
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Abstract In fertilized agricultural soils, both fertilizer and soil P are partly depleted by crop export, while residual fertilizer P reacts with the soil. As a result, P availability changes in complex ways that cannot be described by an available P pool.
Morel, Christian +3 more
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2021
Phosphorus (P) is often the limiting nutrient contributing to phytoplankton blooms and deteriorating water quality. It is imperative to identify key sources of P in watersheds, especially in areas where P has accumulated in the soil and created a potential source of long-term releases into water bodies. The existing limitation of analytical methods for
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Phosphorus (P) is often the limiting nutrient contributing to phytoplankton blooms and deteriorating water quality. It is imperative to identify key sources of P in watersheds, especially in areas where P has accumulated in the soil and created a potential source of long-term releases into water bodies. The existing limitation of analytical methods for
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Nature, 1938
Formation of Lipin Phosphorus in Normal and Rachitic Rats, with a Radioactive Phosphorus Isotope as an ...
M. J. L. DOLS +3 more
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Formation of Lipin Phosphorus in Normal and Rachitic Rats, with a Radioactive Phosphorus Isotope as an ...
M. J. L. DOLS +3 more
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Labelling with Isotopes of Phosphorus, Sulfur and the Halogens
2011There are both stable and radioactive isotopes of phosphorus, sulfur and the halogens which have been used for labelling purposes. In this chapter, we consider methods that have been used to prepare labelled compounds containing these isotopes.
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Positional isotope exchange using phosphorus-31 nuclear magnetic resonance.
Methods in enzymology, 1990This chapter has presented the basic methods involved in the use of 31P NMR to study positional isotope exchange in enzyme-catalyzed reactions involving phosphorus-containing substrates. The method is straightforward but requires synthesis of specific 18O isotopically labeled substrates at the site of bond cleavage. Analysis of the kinetic consequences
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THE PHOSPHORUS METABOLISM OF GLIOMAS: A STUDY WITH RADIOACTIVE ISOTOPES
Brain, 1957B, SELVERSTONE, M J, MOULTON
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