Simpson A J, Kingery W L, Spraul M, Humpfer E, Dvortsak P, Kerssebaum R Separation of Structural Components in Soil Organic Matter by Diffusion Ordered Spectroscopy Environ. Sci. Technol. 2001, 35, 22, 4421–4425 DOI: 10.1021/es0106218
Simpson A J, Kingery W L, Shaw D R, Spraul M, Humpfer E, Dvortsak P The Application of 1H HR-MAS NMR Spectroscopy for the Study of Structures and Associations of Organic Components at the Solid−Aqueous Interface of a Whole Soil Environ. Sci. Technol. 2001, 35, 16, 3321–3325 DOI: 10.1021/es010607v
Simpson A J, Kingery W L, Hayes M H, Spraul M, Humpfer E, Dvortsak P, Kerssebaum R, Godejohann M and Hofmann M Molecular structures and associations of humic substances in the terrestrial environment Naturwissenschaften volume 89, pages84–88 (2002)
Simpson M J, Simpson A J, Gross D, Spraul M, Kingery W L 1H and 19F nuclear magnetic resonance microimaging of water and chemical distribution in soil columns Env. Toxicology and Chemistry .Vol 26, Issue 7, 1333-1551 DOI: 10.1897/06-478R.1
Simpson A J, Tseng L H, Simpson M J, Spraul M,b Braumann U, Kingery W, Kelleher B C and Hayes M H B The application of LC-NMR and LC-SPE-NMR to compositional studies of natural organic matter Analyst, 2004,129, 1216-1222 DOI: 10.1039/B408064E
Pautler B G, Simpson A J, Simpson M J, Tseng L H, Spraul M, Dubnick A, Sharp M, Fitzsimons S J Detection and Structural Identification of Dissolved Organic Matter in Antarctic Glacial Ice at Natural Abundance by SPR-W5-WATERGATE 1H NMR Spectroscopy Environ. Sci. Technol. 2011, 45, 11, 4710–4717 DOI: 10.1021/es200697c
Yuk J, McKelvie J R, Simpson M J, Spraul M and Simpson A J Comparison of 1-D and 2-D NMR techniques for screening earthworm responses to sub-lethal endosulfan exposure Environmental Chemistry 7(6) 524-536 DOI: 10.1071/EN10084
Anaraki M T, Lysak H D, Downey K, Vinicius F, Kock C, You X, Majumdar R D, Barison A, Lião L M. Ferreira A G, Decker V, Goerling B, Spraul M, Godejohann M, Helm P A, Kleywegt S, Jobst K, Soong R, Simpson M J, Simpson A J NMR spectroscopy of wastewater: A review, case study, and future potential
Progress in Nuclear Magnetic Resonance Spectroscopy, Volumes 126 +127, 2021, Pages 121-180, doi: 10.1016/j.pnmrs.2021.08.001
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