Results 11 to 20 of about 68,942 (307)

Application of a triple 15N tracing technique to elucidate N transformations in a UK grassland soil [PDF]

, 2021
To identify the production and consumption pathways and temporal dynamics of N2O emitted from soil, this study uses 15N labelled substrate-N to quantify the underlying gross N transformation rates using the Ntrace analysis tool and link them to N ...
Ciganda, V. S., Cardenas, L. M., Matthews, GP, Muller, C., Lopez-Aizpun, M., Cardenas, LM, Loick, N., Dixon, E. R., Dixon, E, Repullo, MA, Ciganda, VS, Loick, N, Repullo, M. A., López-Aizpún, M, Matthews, G. P., Müller, C   +15 more
core   +1 more source

Synthesis of 15N-Pyridines and Higher Mass Isotopologs via Zincke Imine Intermediates

, 2023
Methods to incorporate stable radioisotopes are integral to pharmaceutical and agrochemical development. However, despite the prevalence of pyridines in candidate compounds, methods to incorporate 15N-atoms within their structures are limited.
Marie A., Hart, Andrew, McNally, David C., Thomas, Jeffrey N., Levy, Kaila R., Steenback, Hillary M. H., Nguyen   +5 more
core   +1 more source

14N to 15N Isotopic Exchange of Nitrogen Heteroaromatics through Skeletal Editing

, 2023
The selective modification of nitrogen heteroaromatics enables the development of new chemical tools and accelerates drug discovery. While methods that focus on expanding or contracting the skeletal structures of heteroaromatics are emerging, methods for
Richmond, Sarpong, Lucas J., Karas, Filippo, Carpaneto, Raffeal, Bennett, G. Logan, Bartholomew, Charles S., Yeung, Matthew S., Sigman, Samantha L., Kraus   +7 more
core   +1 more source

AMPA-15N – Synthesis and application as standard compound in traceable degradation studies of glyphosate

Ecotoxicology and Environmental Safety, 2021
Stable isotope labeling of pollutants is a valuable tool to investigate their environmental transport and degradation. For the globally most frequently used herbicide glyphosate, such studies have, so far, been hampered by the absence of an analytical ...
Marisa A. Wirth, Lars Longwitz, Marion Kanwischer, Peter Gros, Peter Leinweber, Thomas Werner   +5 more
doaj   +1 more source

15N natural abundances in two podsol soils of two spruce forests differing in their atmospheric N deposition conditions

Plant, Soil and Environment, 2005
This study aims to investigate the changes in isotope ratios in foliage and soils of the two spruce forests [Picea abies (L.) Karst.] differing greatly in their atmospheric N deposition and climatic conditions.
S.P. Sah
doaj   +1 more source

Chemical and isotopic switching within the subglacial environment of a high Arctic glacier. [PDF]

, 2006
Natural environmental isotopes of nitrate, sulphate and inorganic carbon are discussed in conjunction with major ion chemistry of subglacial runoff from a High Arctic glacier, Midre Lovénbreen, Svalbard. The chemical composition of meltwaters is observed
Hodson, Andrew, Heaton, Tim, Wynn, Peter M., Heaton, Tim H. E.   +3 more
core   +1 more source

Editorial V.15N.37

, 2022
Editorial V.15N.37Editorial V.15N.37Editorial V.15N ...
Paschoarelli, Luis Carlos, Silveira, Icléia, Ferreira, Marcelo Gitirana Gomes   +2 more
core   +1 more source

Isotope ratios and concentration of N in needles, roots and soils of Norway spruce (Picea abies [L.] Karst.) stands as influenced by atmospheric deposition of N

Journal of Forest Science, 2005
This study aims to investigate the changes in isotope ratios in foliage and soils of two Norway spruce (Picea abies [L.] Karst.) forests greatly differing in their atmospheric N deposition and climatic conditions.
S. P. Sah
doaj   +1 more source

Editorial V.15N.36

, 2022
Editorial V.15N.36Editorial V.15N.36Editorial V.15N ...
Novelli, Daniela
core   +1 more source

Natural 15N abundance in two nitrogen saturated forest ecosystems at Solling, Germany

Journal of Forest Science, 2003
This research deals with a comparative study of two different N-saturated forests: 1. beech forest and 2. spruce forest at the same locality of \solling, Central Germany.
S.P. Sah, R. Brumme
doaj   +1 more source