OF SUP 15 N

NMR spectroscopic studies of /sup 15/N labelled ...

1 Jul 1982 ... The completely /sup 15/N labelled cyclophosphazanes (/sup 15/NMeP(OMe)O)/ sub 3/, (/sup 15/NEtP(OEt)O)/sub 3/, and (/sup ...

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Table 1: Summary of stations, sampling depths and <sup>15</sup ...

Table 1: Summary of stations, sampling depths and 15N incubation experiments conducted. Before the analyses for the targeted products listed, ...

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sup 195 Pt NMR spectroscopy of ( sup 15 N) peptide complexes ...

5 Sep 1990 ... Structural assignments are made on the basis of coupling constants with ({sup 15 }N)peptides. The magnitude of the J{sub Pt-N} coupling ...

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Soil processes drive seasonal variation in retention of <sup>15</sup ...

Natural Resources, School of. 2019. Soil processes drive seasonal variation in retention of. 15. N tracers in a deciduous forest catchment. Christine L. Goodale.

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Figure 2: <sup>15</sup>N-enrichment pattern and apparent fluxes ...

a, Molar distribution of leaf 15N between Ser (circles), Gly (squares) and the amide nitrogen atom of Gln (diamonds). b, The amine nitrogen atom of Gln and Glu ...

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Nitrogen isotope fractionation explains the <sup>15</sup>N ...

19 Nov 2019 ... Nitrogen isotope fractionation explains the 15N enrichment of Antarctic cryptogams by volatilized ammonia from penguin and seal colonies.

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<sup>15</sup>N标记的包膜尿素在华北平原渗滤系统中的回收和淋失 ...

Although inorganic N leached from the 1.3 m layer was less than 1% of the total applied N, unidentified losses of 15 N (losses of 15 N = 15 N applied as fertilizer  ...

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High-Precision Measurements of <SUP>15</SUP>N<SUP>15 ...

Isotopic ratios in fixed nitrogen species (e.g., δ15N and δ18O values of NO2- and ... The parameter ∆30 is insensitive to the bulk 15N/14N isotopic ratio of the ...

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"A Bat-Guano-Derived δ<sup>15</sup>N and δ<sup>13</sup>C ...

Because nitrogen isotopes are fractionated along the soil-plant-insect-bat-guano pathway, it may be possible to reconstruct environmental and climatic changes ...

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In Vivo Detection of <SUP>15</SUP>N-Coupled Protons in Rat ...

Three-dimensional image-selected in vivo spectroscopy (ISIS) was combined with phase-cycled 1 H- 15 N heteronuclear multiple-quantum coherence (HMQC)  ...

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Backbone assignments of <sup>1</sup>H, <sup>15</sup>N and ...

Request PDF | Backbone assignments of 1 H, 15 N and 13 C resonances and secondary structure prediction of MRA1997 from Mycobacterium tuberculosis ...

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Analysis of <sup>15</sup>N incorporation into Dâ•'alanine: A new ...

Analysis of 15N incorporation into D-alanine: A new method for ... + uptake and dominated uptake of the 15N-amino acid mixture (90%). Analysis of 15N ...

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Materials with known <sup>15</sup>N/<sup>14</sup>N isotopic ...

IAEA-N-1, Pure Substance, Ammonium Sulfate, -. IAEA-N-2, Pure ... Gas, Nitrogen Gas-N2, -. IAEA-305, Pure Substance, 15N labelled ammonium sulfate, -.

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Descyclopropyldicyclanil-<sup>15</sup>N<sub>3</sub>

Check availability and compare product details Descyclopropyldicyclanil- 15 N 3 Analytical standard, reference material , CAS Number: , (R1488 Fluka).

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Decomposition of [sup. 13] C and [sup. 15] N labelled plant residue ...

Decomposition of [sup.13]C and [sup.15]N labelled plant residue materials in two different soil types and its impact on soil carbon, nitrogen, aggregate stability, ...

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Measuring translational diffusion of 15 N-enriched biomolecules in ...

Measuring translational diffusion of <sup>15</sup>N-enriched biomolecules in complex solutions with a simplified <sup>1</sup>H-<sup>15</sup>N ...

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<sup>15</sup>N Abundances in Organic Rice and Soil

These results indicated that the relationship of the δ15N values of rice and soil without an applied N source could aid in discriminating between organic rice and  ...

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Heterotrophic and phototrophic <sup>15</sup>N<sub>2</sub ...

19 Dec 2013 ... Biological nitrogen fixation (BNF) is the biological reduction of atmospheric nitrogen to ammonia under natural conditions. In contrast to upland ...

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(PDF) Nitrogen Transformations in Wetland Soil Cores Measured by ...

9 Apr 2014 ... PDF | The effect of water infiltration rate (IR) on nitrogen cycling in a saturated wetland soil was investigated by applying a (sup15)N isotope.

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A study of <sup>13</sup>C–<sup>15</sup>N couplings and ...

A study of 13C-15N couplings and revised 13C shieldings in ... 13C nmr chemical shifts and 13C-15N couplings through one, two, and three bonds are reported ...

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sup 1 H and sup 15 N resonance assignments of oxidized ...

Request (PDF) | sup 1 H and sup 15 N... | Proton and nitrogen-15 sequence- specific nuclear magnetic resonance assignments have been determined for ...

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SOIL DETRITAL PROCESSES CONTROLLING THE MOVEMENT OF

In a few experimental manipulations of N inputs to forests, 15N has been ... and timing of 15N applications in ambient and chronically fertilized plots over two ...

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A new organic reference material, L-glutamic acid, USGS41a, for δ ...

Rationale. The widely used l-glutamic acid isotopic reference material USGS41, enriched in both 13C and 15N, is nearly exhausted. A new material, USGS41a, ...

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Ammonia-15N solution | Sigma-Aldrich

Sigma-Aldrich offers a number of Ammonia- 15 N solution products. View information ... Image of Ammonia-<SUP>15</SUP>N solution. Empirical Formula (Hill ...

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Use of <sup>15</sup>N Labelling and <sup>15</sup>N Natural ...

15N labelling and variations in natural 15N abundance offer possibilities to quantify the ... Careful N and 15N budgets based on seed N and sequential harvests, ...

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"Calibrating amino acid δ<sup>13</sup>C and δ<sup>15</sup>N ...

Calibrating amino acid δC and δN offsets between polyp and protein skeleton to develop proteinaceous deep-sea corals as paleoceanographic archives.

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Stable Isotope <sup>2</sup>H, <sup>13</sup>C, <sup>15</sup>N ...

For stable isotope dilution assays, preferred labeled isotopes : 15N & 13C ( Golden Standard) over 2H lab in order to ensure optimum co-elution with the ...

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Journal of Magnetic Resonance | Vol 141, Issue 1, Pages 1-195 ...

select article MUSIC in Triple-Resonance Experiments: Amino Acid Type- Selective <sup>1</sup>H–<sup>15</sup>N Correlations. Research articleFull text ...

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Synthesis of 15N‐labelled 3, 5‐dimethylpyridine

environments because their 15N chemical shifts are sensitive to hydrogen-bond and protonation states. By variation of the type and number of substituents ...

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Îfl<sup>15</sup>N and Îfl<sup>13</sup>C

∆15N, and significant differences among tissues for both ∆13C and ∆15N. We found a significant ... More than 40% used ∆15N values and more than 33% used .

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Phylloxera infestation and the uptake and distribution of <sup>13 ...

27 Mar 2019 ... Phylloxera infestation and the uptake and distribution of <sup>13</sup>C and < sup>15</sup>N tracers in grape vines. Yuanpeng Du ...

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CARBON-RICH PRESOLAR GRAINS from MASSIVE STARS ...

1 Aug 2019 ... This scenario is attractive for the SiC grains of type AB with <sup>14</sup>N/< sup>15</sup>N ratios lower than solar, and provides an ...

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Custom GLP Synthesis with Nitrogen 15 [<sup>15</sup>N]

Moravek is licensed by the California Department of Public Health, Food and Drug Branch, for the preparation of 15N labeling of active pharmaceutical ...

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Nitrogen Transformations in Wetland Soil Cores Measured by ...

ABSTRACT. The effect of water infiltration rate (IR) on nitrogen cycling in a saturated wetland soil was investigated by applying a (sup15)N isotope dilution and ...

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A Highâ•'resolution <sup>15</sup>N Solidâ•'state NMR Study of ...

A high-resolution 15N solid-state NMR study of collagen ... Gly 15N chemical shift is a very sensitive probe for studying supercoiling in collagen and collagen-.

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Fate and metabolism of [<sup>15</sup>N]2,4,6â•'trinitrotoluene in soil

In addition, 1.7% of the 15N label was detected as biogenic amino acids in the wheat straw ... knowledge, no mass balances of 15N in soil systems have yet.

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Use of <sup>15</sup>N natural abundance in nitrogen cycling of ...

Based on the relationship between nitrogen (N) isotope composition (δ15N) in ecosystem N status and soil N cycle, we summarized the effects and mechanisms  ...

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Hepcidin (Human

Home > Products > sup-13-sup-C-sub-18-sub-sup-15-sup-N-sub-3-sub-Hepcidin -(Human)-(0.02mg-vial). [13C18,15N3]-Hepcidin (Human) (0.02mg vial) ... Asp- Thr-His-[13C9,15N]Phe-Pro-Ile-Cys-Ile-[13C9,15N]Phe-Cys-Cys-[15N]Gly-Cys- ...

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Translocation of <sup>15</sup>N indicates nitrogen recycling in the ...

10 May 2005 ... 15N was introduced into either the lower (TU thalli) or upper (TD ... Independently of the form of introduced label, 15N migrated upwards in TU ...

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Synthesis and <sup>15</sup>N NMR Characterization of 4, 5 ...

17 Apr 2012 ... In the last few decades, pentazole derivatives have received a great deal of attention as they are important intermediates in the synthesis of ...

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