Soil Health and Fertility
Kodaolu B., Mohammed I., Wang Y., Zhang T., Audette Y., Longstaffe JG. Assessment of phosphorus status in a calcareous soil receiving long term application of chemical fertilizer and different forms of swine manures. Journal of Environmental Quality, 2024, 53:112-122. Http://dx.doi.org/10/1002/jeq2.20528
Gamage J., Voroney P., Gillespie A., Longstaffe J. Chemical composition of soil humin in an organic soil profile. Applied Geochemistry, 2024, 165: 105954. Http://dx.doi.org/10.1916/japgeochem.2024.105954
Mohammed I., Kodaolu B., Zhang T., Wang Y., Audette Y., Longstaffe J. Analysis of molecular structure changes in humic acids from manure-amended soils over 17 years using elemental analysis and solid-state 13C nuclear magnetic resonance. Soil Systems, 2023, 7: 76. http://dx.doi.org/10.3390/soilsystems7030076
Kodaolu B., Mohammed I., Gillespie AW., Audette Y., Longstaffe JG. Phosphorus availability and corn (Zea mays L.) response to application of P-based organic fertilizers to a calcareous soil. Soil Science Society of America Journal, 2023, 1-12. http://dx.doi.org/10.1002/saj2.20587
Gamage J., Voroney P., Gillespie A., Lo A., Longstaffe J. Evidence for the formation of fused aromatic ring structures in an organic soil profile in the early diagenesis. Scientific Reports, 2023, 13: 12378. http://dx.doi.org/10.1038/s41598-023-39181-8
O’Hare L., Longstaffe J. 1H NMR metabolomics analysis of arabidopsis exposure to perfluorooctanoic acid and perfluorooctanesulfonate. Environmental Toxicology and Chemistry, 2023 42, 663-672. http://dx.doi.org/10.1002/etc.5547
Audette Y., Longstaffe J., Gillespie A., Smith S., Voroney P. Validation and comparisons of NaOH and Na4P2O7 extraction methods for the characterization of organic amendments. Soil Science Society of America Journal, 2021, 85: 273-285. http://dx.doi.org/10.1002/saj2.20195
Audette Y., Smith D.S., Parsons C.T., Longstaffe J., Chen W., Rezanezhad F., Evans L.J., Van Cappellen P. Impact of hydrofluoric acid treatment on humid acid properties extracted from organic soils and an organic amendment: A technical evaluation. Soil Science Society of America Journal, 2019, 83, 1219-1226. http://dx.doi.org/10.2136/sssaj2018.11.0419
Longstaffe J.G., Courtier-Murias D., Simpson A.J. A nuclear magnetic resonance study of the dynamics of organofluorine interactions with a dissolved humic acid. Chemosphere, 2016, 145, 307-313.
Courtier-Murias D., Farooq H., Longstaffe J.G., Kelleher B.P., Hart K.M., Simpson M.J., Simpson A.J. Cross polarization-single pulse/magnetic angle spinning (CPSP/MAS): A robust technique for routine soil analysis by solid-state NMR. Geoderma, 2014, 226-227, 405-414.
Longstaffe J.G., Courtier-Murias D., Simpson A.J. The pH-dependence of organofluorine binding domain preference in dissolved humic acid. Chemosphere, 2013, 90, 270-275.
Longstaffe J.G., Courtier-Murias D., Soong R., Simpson M.J., Maas W.E., Fey M., Hutchins H., Krishnamurthy S., Struppe J., Alaee M., Kumar R., Monette M., Stronks H.J., Simpson A.J. In-situ molecular-level elucidation of organoflorine binding sites in a whole peat soil. Environmental Science & Technology, 2012, 46, 10508-10513.
Longstaffe J.G., Simpson A.J. Understanding solution-state non covalent interactions between xenobiotics and natural organic matter using 19F/1H heteronuclear saturation transfer difference nuclear magnetic resonance spectroscopy. Environmental Toxicology and Chemistry, 2011, 30, 1745-1753.
Longstaffe J.G., Simpson M.J., Maas W., Simpson A.J. Identifying components in dissolved humic acid that bind organofluorine contaminants using 1H{19F} reverse heteronuclear saturation transfer difference NMR spectroscopy. Environmental Science & Technology. 2010, 44, 5476-5482.
Contaminated Environments
O’Hare L., Longstaffe J. 1H NMR metabolomics analysis of arabidopsis exposure to perfluorooctanoic acid and perfluorooctanesulfonate. Environmental Toxicology and Chemistry, 2023 42, 663-672. http://dx.doi.org/10.1002/etc.5547
Heerah K., Waclawek S., Konzuk J., Longstaffe J. Benchtop 19F NMR spectroscopy as a practical tool for testing of remedial technologies for the degradation of perfluorooctanoic acid, a persistent organic pollutant. Magnetic Resonance in Chemistry, 2020. http://dx.doi.org/10.1002/mrc.5005
Longstaffe J. Nuclear Magnetic Resonance Techniques for Analysis of Contaminants in the Environment. Encyclopedia of Analytical Chemistry, 2019.
Fallaise D., Konzuk J., Cheyne C., Mack E.E., Longstaffe J.G. Nontargeted Analysis of a non-aqueous-phase liquid from a chemical manufacturing site using nuclear magnetic resonance spectroscopy. Environmental Toxicology and Chemistry, 2019, 38, 947-955. http://dx.doi.org/10.1002/etc.4394
Falaise D., Tweedie., Konzuk J., Cheyne C., Mack E.E., Longstaffe J.G. Practical application of 1H benchtop NMR spectroscopy for the characterization of a non aqueous phase liquid from a contaminated environment. Magnetic Resonance in Chemistry, 2019, 1-8. http://dx.doi.org/10.1002/mrc.4816
Longstaffe J.G., Fallaise D. Characterization of heavily contaminated environments using NMR spectroscopy. eMagRes, 2017, 6, 407-418. http://dx.doi.org/10.1002/9780470034590.emrstm1532
Longstaffe J.G., Courtier-Murias D., Simpson A.J. A nuclear magnetic resonance study of the dynamics of organofluorine interactions with a dissolved humic acid. Chemosphere, 2016, 145, 307-313.
Longstaffe J., Konzuk J. NMR in the environmental industry. Magnetic Resonance in Chemistry, 2015, 53, 691-693.
Longstaffe J.G., Courtier-Murias D., Simpson A.J. The pH-dependence of organofluorine binding domain preference in dissolved humic acid. Chemosphere, 2013, 90, 270-275.
Longstaffe J.G., Courtier-Murias D., Soong R., Simpson M.J., Maas W.E., Fey M., Hutchins H., Krishnamurthy S., Struppe J., Alaee M., Kumar R., Monette M., Stronks H.J., Simpson A.J. In-situ molecular-level elucidation of organoflorine binding sites in a whole peat soil. Environmental Science & Technology, 2012, 46, 10508-10513.
Longstaffe J.G., Simpson A.J. Understanding solution-state non covalent interactions between xenobiotics and natural organic matter using 19F/1H heteronuclear saturation transfer difference nuclear magnetic resonance spectroscopy. Environmental Toxicology and Chemistry, 2011, 30, 1745-1753.
Longstaffe J.G., Simpson M.J., Maas W., Simpson A.J. Identifying components in dissolved humic acid that bind organofluorine contaminants using 1H{19F} reverse heteronuclear saturation transfer difference NMR spectroscopy. Environmental Science & Technology. 2010, 44, 5476-5482.
Environmental Metabolomics
Morfin N., Goodwin PH., Guzman-Novoa E., Legge N., Longstaffe J. 1H NMR profile of honey bee brains across varying ages and seasons. Insects, 2024, 15: 578. Https://doi.org/10.3390/insects15080578
O’Hare L., Longstaffe J. 1H NMR metabolomics analysis of arabidopsis exposure to perfluorooctanoic acid and perfluorooctanesulfonate. Environmental Toxicology and Chemistry, 2023 42: 663-672. http://dx.doi.org/10.1002/etc.5547
Freemantle R., Butson N., Goodfellow J., Konzuk J., Longstaffe J. Nuclear magnetic resonance spectroscopy analysis of Anaerobic Microbial Metabolic Response to benzalkonium chloride disinfectant. Applied Sciences, 2022 12(9): 4620. http://dx.doi.org/10.3390/app12094620
Other Works and Collaborations
Giberson J., Scicluna J., Legge N., Longstaffe J. Recent developments in benchtop NMR spectroscopy (2015-2020). Annual Reports in NMR Spectroscopy, 2021, 102, 153-246. http://dx.doi.org/10.1016/bs.arnmr.2020.10.006
Pfeuti G., Brown L.S., Longstaffe J., Svaikauskas F., Bureau D.P., Kiarie E.G. Predicting the standardized ideal digestibility of crude protein in feather meal fed to broiler chickens using a pH-stat and a FT-Raman method. Animal Feed Science and Technology, 2020, 261, 114340. http://dx.doi.org/10.1016/j.anifeedsci.2019.114340
Pfeuti G., Longstaffe J., Brown L.S., Shoveller A.K., Taylor C.M., Bureau D.P. Disulphide bond and cross-linked amino acids may affect amino acid utilization in feather meal fed to rainbow trout (Oncorhynchus mykiss). Aquaculture Research, 2019, 1-15. http://dx.doi.org/10.1111/are.14079
Pensini E., Dinardo A., Lamont K., Longstaffe J., Elsayed A., Singh A. Effects of salts and pH on the removal of perfluorooctanoic acid (PFOA) from aqueous solutions through precipitation and electroflocculation. Canadian Journal of Civil Engineering, 2019, 46, 881.886. http://dx.doi.org/10.1139/cjce-2018-0705
Simpson A.J., Courtier-Murias D., Longstaffe J.G., Massom H., Soong R., Lam L., Sutrisno A., Farooq H., Simpson M.J., Maas W.E., Fey M., Andrew B., Struppe J., Hutchins H., Krishnamurthy S., Kumar R., Monette M., Stronks H.J. Environmental comprehensive multiphase NMR. eMagRes, 2013, 2, 399-414.
Courtier-Murias D., Farooq H., Massom H., Botana A., Soong R. Longstaffe J.G., Simpson M.J., Maas W.E., Fey M., Andrew B., Struppe J., Hutchins H., Krishnamurthy S., Kumar R., Monette M., Stronks H.J., Hume A., Simpson A.J. Journal of Magnetic Resonance, 2012, 217, 61-76.
Bajaj A., Khanna A., Chen B., Longstaffe J.G., Zwanziger U.W., Zwanziger J.W., Gomez Y., Gonzalez F. Structural investigations of bismuth borate glasses and crystalline phases. Journal of Non-Crystalline Solids. 2009, 355, 45-53.
Longstaffe J.G., Zwanziger U,W. Schneider J.F., Nascimento M.L.F., Zanotto E.D., Zwanziger J.W. Intermediate-range order of alkali dislocate glasses and its relation to the devitrification mechanism. Journal of Physical Chemistry C, 2008, 112, 6151-6159.
Longstaffe J.G., Chen B., Huang Y. Characterization of the amorphous phases formed during the synthesis of microporous material AlPO4-5. Microporous and Mesoporous Materials, 2007, 98, 21-28.