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@ARTICLE{Berns:16387,
      author       = {Berns, A.E. and Bubici, S. and De Pasquale, C. and Alonzo,
                      G. and Conte, P.},
      title        = {{A}pplicability of solid state fast field cycling {NMR}
                      relaxometry in understanding relaxation properties of leaves
                      and leaf-litters},
      journal      = {Organic geochemistry},
      volume       = {42},
      issn         = {0146-6380},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PreJuSER-16387},
      pages        = {978 - 984},
      year         = {2011},
      note         = {P.C. acknowledges Forschungszentrum Julich GmbH (Germany)
                      for having invited him as visiting scientist at the NMR
                      centre of the Institute of Bio- and Geosciences, IBG-3:
                      Agrosphere. FFC NMR measurements were done at the Universita
                      degli Studi di Palermo. This work was partially funded by
                      Ce.R.T.A. s.c.r.l. (Centri Regionali per le Tecnologie
                      Alimentari; http://www.certa.it/default.asp)},
      abstract     = {Inversion recovery high field solid state (SS) H-1 NMR
                      spectroscopy and fast field cycling (FFC) NMR relaxometry
                      have been applied on dried leaves and leaf-litters from a
                      reafforestated area in central Sicily (Italy) in order to
                      evaluate relaxation properties in both slow (1 <<
                      omega(2)(0)tau(2)(c)) and fast (1 >> omega(2)(0)tau(2)(c))
                      motion regimes. Namely, SS H-1 NMR spectroscopy (i.e. slow
                      motion regime conditions) revealed that two relaxation
                      components (a fast and a slow one) can be identified in all
                      the leaves and leaf-litter samples. The fast component was
                      assigned to small sized plant metabolites, whereas the slow
                      one was attributed to slowly tumbling macropolymeric
                      molecules. FFC NMR relaxometry (i.e. fast motion regime
                      conditions) indicated that intra-and inter-segmental
                      motional contributions to plant relaxation occur, depending
                      on the nature of the plant sample under investigation. The
                      present study represents the first example of a combination
                      of high and low resolution NMR techniques for the
                      understanding of the dynamics properties of environmentally
                      relevant soft matter such as leaves and leaf-litters. These
                      materials are considered among the main contributors for the
                      synthesis of natural organic matter. For this reason, a
                      comprehension of their basic molecular dynamics properties
                      is a crucial point to evaluate their effect on, e.g., carbon
                      cycle, fate of organic and inorganic pollutants, and
                      microbial biomass grow. (C) 2011 Elsevier Ltd. All rights
                      reserved.},
      keywords     = {J (WoSType)},
      cin          = {IBG-3},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Geochemistry $\&$ Geophysics},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000295215300012},
      doi          = {10.1016/j.orggeochem.2011.04.006},
      url          = {https://juser.fz-juelich.de/record/16387},
}