研究成果

論文（査読あり）

  1. Toyoda, S., F. Damak, S. Hattori, M. Takeda, H. Akiyama, Y. Sasaki, and K. Minamisawa (2024), Dynamics of N2O production and reduction processes in a soybean field revealed by isotopocule analyses, Soil Biology and Biochemistry, 191, 109358, doi: 10.1016/j.soilbio.2024.109358.
  2. Toyoda, S., K. Terajima, N. Yoshida, C. Yoshikawa, A. Makabe, F. Hashihama, and H. Ogawa (2023), Extensive Accumulation of Nitrous Oxide in the Oxygen Minimum Zone in the Bay of Bengal, Global Biogeochemical Cycles, 37(9), doi: 10.1029/2022gb007689.
  3. Ghosh, S., S. Toyoda, C. Buizert, D. M. Etheridge, R. L. Langenfelds, N. Yoshida, S. J. Kim, and J. Ahn (2023), Concentration and Isotopic Composition of Atmospheric N2O Over the Last Century, Journal of Geophysical Research: Atmospheres, 128(12), e2022JD03821, doi: 10.1029/2022jd038281.
  4. Prondzinsky, P., S. Toyoda, and S. E. McGlynn (2023), The methanogen core and pangenome: conservation and variability across biology's growth temperature extremes, DNA Res, 30(1), doi: 10.1093/dnares/dsac048.
  5. Nishina, K., L. Melling, S. Toyoda, M. Itoh, K. Terajima, J. W. B. Waili, G. X. Wong, F. Kiew, E. B. Aeries, R. Hirata, Y. Takahashi, and T. Onodera (2023), Dissolved N2O concentrations in oil palm plantation drainage in a peat swamp of Malaysia, Sci Total Environ, 872, 162062, doi: 10.1016/j.scitotenv.2023.162062.
  6. He, D., Ooka, H., Li, Y., Kim, Y., Yamaguchi, A., Adachi, K., et al. (2022). Regulation of the electrocatalytic nitrogen cycle based on sequential proton–electron transfer. Nature Catalysis, 5(9), 798-806. https://doi.org/10.1038/s41929-022-00833-z
  7. Isaji, Y., Yoshikawa, C., Ogawa, N. O., Matsumoto, K., Makabe, A., Toyoda, S., et al. (2022). Nitrogen Sources for Phytoplankton in the Eastern Indian Ocean Determined From δ15N of Chlorophyll a and Divinylchlorophyll a. Geochemistry, Geophysics, Geosystems, 23(4). https://doi.org/10.1029/2021gc010057
  8. Kantnerová, K., Hattori, S., Toyoda, S., Yoshida, N., Emmenegger, L., Bernasconi, S. M., & Mohn, J. (2022). Clumped isotope signatures of nitrous oxide formed by bacterial denitrification. Geochimica et Cosmochimica Acta, 328, 120-129. https://doi.org/10.1016/j.gca.2022.05.006
  9. Kudo, K., Toyoda, S., Yamada, K., Yoshida, N., Sasano, D., Kosugi, N., et al. (2022). Source analysis of dissolved methane in Chukchi Sea and Bering Strait during summer–autumn of 2012 and 2013. Marine Chemistry, 243. https://doi.org/10.1016/j.marchem.2022.104119
  10. Mohn, J., Biasi, C., Bodé, S., Boeckx, P., Brewer, P. J., Eggleston, S., et al. (2022). Isotopically‐characterised N2O reference materials for use as community standards. Rapid Commun Mass Spectrom, 36(13), e9296. https://doi.org/10.1002/rcm.9296
  11. Wei, W., Isobe, K., Shiratori, Y., Yano, M., Toyoda, S., Koba, K., et al. (2021). Revisiting the involvement of ammonia oxidizers and denitrifiers in nitrous oxide emission from cropland soils. Environmental Pollution, 287. https://doi.org/10.1016/j.envpol.2021.117494
  12. Toyoda, S., Kakimoto, T., Kudo, K., Yoshida, N., Sasano, D., Kosugi, N., et al. (2021). Distribution and Production Mechanisms of N2O in the Western Arctic Ocean. Global Biogeochemical Cycles, 35(4), e2020GB006881. https://doi.org/10.1029/2020gb006881
  13. Yu, L., Harris, E., Lewicka-Szczebak, D., Barthel, M., Blomberg, M. R. A., Harris, S. J., et al. (2020), What can we learn from N2O isotope data? - Analytics, processes and modelling, Rapid Commun Mass Spectrom, 34(20). https://doi.org/10.1002/rcm.8858
  14. Guha, T., Mahata, S., Bhattacharya, S. K., Singh, B. B., Toyoda, S., Yoshida, N., and Liang, M. C. (2020), Stratospheric Incursion as a Source of Enhancement of the Isotopic Ratios of Atmospheric N2O at Western Pacific, Earth and Space Science, 7(11). https://doi.org/10.1029/2020ea001102
  15. Chun, Y., Kim, D., Hattori, S., Toyoda, S., Yoshida, N., Huh, J., et al. (2020), Temperature control on wastewater and downstream nitrous oxide emissions in an urbanized river system. Water Res, 187, 116417. https://doi.org/10.1016/j.watres.2020.116417
  16. Breider, F., Yoshikawa, C., Makabe, A., Toyoda, S., Wakita, M., Matsui, Y., et al. (2019). Response of N2O production rate to ocean acidification in the western North Pacific, Nature Climate Change, 9(12), 954-958. https://doi.org/10.1038/s41558-019-0605-7
  17. Toyoda, S., Yoshida, O., Yamagishi, H., Fujii, A., Yoshida, N., and Watanabe, S. (2019), Identifying the origin of nitrous oxide dissolved in deep ocean by concentration and isotopocule analyses. Sci Rep, 9(1), 7790. https://doi.org/10.1038/s41598-019-44224-0
  18. Hyodo, A., S. Malghani, Y. Zhou, R. M. Mushinski, S. Toyoda, N. Yoshida, T. W. Boutton, and J. B. West (2019), Biochar amendment suppresses N2O emissions but has no impact on 15N site preference in an anaerobic soil, Rapid Commun. Mass Spectrom., 33, 165-175.
  19. Hasebe, F., S. Aoki, S. Morimoto, Y. Inai, T. Nakazawa, S. Sugawara, C. Ikeda, H. Honda, H. Yamazaki, Halimurrahman, N. Komala, F. A. Putri, A. Budiyono, M. Soedjarwo, S. Ishidoya, S. Toyoda, T. Shibata, M. Hayashi, N. Eguchi, N. Nishi, M. Fujiwara, S.-Y. Ogino, M. Shiotani, and T. Sugidachi (2018), Coordinated Upper-troposphere-to-stratosphere Balloon Experiment in Biak (CUBE/Biak) B. Am. Meteorol. Soc., 99(6), 1213-1230, doi: 10.1175/BAMS-D-16-0289.1.
  20. Ishidoya, S., S. Sugawara, Y. Inai, S. Morimoto, H. Honda, C. Ikeda, G. Hashida, T. Machida, Y. Tomikawa, S. Toyoda, D. Goto, S. Aoki, and T. Nakazawa (2018), Gravitational separation of the stratospheric air over Syowa,　Antarctica and its connection with meteorological fields, Atmos. Sci. Lett., e857, doi: 10.1002/asl.8.
  21. Kinase, T., K. Kita, Y. Igarashi, K. Adachi, K. Ninomiya, A. Shinohara, H. Okochi, H. Ogata, M. Ishizuka, S. Toyoda, K. Yamada, N. Yoshida, Y. Zaizen, M. Mikami, H. Demizu, and Y. Onda (2018), The seasonal variations of atmospheric 134,137Cs activity and possible host particles for their resuspension in the contaminated areas of Tsushima and Yamakiya, Fukushima, Japan, Progress in Earth and Planetary Science, 5(1), doi: 10.1186/s40645-018-0171-z.
  22. Kudo, K., K. Yamada, S. Toyoda, N. Yoshida, D. Sasano, N. Kosugi, M. Ishii, H. Yoshikawa, A. Murata, H. Uchida, and S. Nishino (2018), Spatial distribution of dissolved methane and its source in the western Arctic Ocean, Journal of Oceanography, 74(3), 305-317, doi: 10.1007/s10872-017-0460-y.
  23. Ostrom, N. E., H. Gandhi, T. B. Coplen, S. Toyoda, J. K. B?hlke, W. A. Brand, K. L. Casciotti, J. Dyckmans, A. Giesemann, J. Mohn, R. Well, L. Yu, and N. Yoshida (2018), Preliminary assessment of stable nitrogen and oxygen isotopic composition of USGS51 and USGS52 nitrous oxide reference gases and perspectives on calibration needs, Rapid Commun. Mass Spectrom., 32(15), 1207-1214, doi: 10.1002/rcm.8157.
  24. Sugawara, S., S. Ishidoya, S. Aoki, S. Morimoto, T. Nakazawa, S. Toyoda, Y. Inai, F. Hasebe, C. Ikeda, H. Honda, D. Goto, and F. A. Putri (2018), Age and gravitational separation of the stratospheric air over Indonesia, Atmos. Chem. Phys., 18, 1819-1833, doi: 10.5194/acp-18-1819-2018.
  25. Toyoda, S., N. Yoshida, S. Morimoto, S. Aoki, T. Nakazawa, S. Sugawara, S. Ishidoya, M. Uematsu, Y. Inai, F. Hasebe, C. Ikeda, H. Honda, and K. Ishijima (2018), Vertical distributions of N2O isotopocules in the equatorial stratosphere, Atmospheric Chemistry and Physics, 18, 833-844, doi: 10.5194/acp-18-833-2018.
  26. Yue, F.-J., S.-L. Li, C.-Q. Liu, K. M. G. Mostofa, N. Yoshida, S. Toyoda, S.-L. Wang, S. Hattori, and X.-L. Liu (2018), Spatial variation of nitrogen cycling in a subtropical stratified impoundment in southwest China, elucidated by nitrous oxide isotopomer and nitrate isotopes, Inland Waters, 8(2), 186-195, doi: 10.1080/20442041.2018.1457847.
  27. Goto, D., S. Morimoto, S. Aoki, S. Sugawara, S. Ishidoya, Y. Inai, S. Toyoda, H. Honda, G. Hashida, T. Yamanouchi, and T. Nakazawa (2017), Vertical Profiles and Temporal Variations of Greenhouse Gases in the Stratosphere over Syowa Station, Antarctica, SOLA, 13, 224-229, doi: 10.2151/sola.2017-041.
  28. Ishizuka, M., M. Mikami, T. Y. Tanaka, Y. Igarashi, K. Kita, Y. Yamada, N. Yoshida, S. Toyoda, Y. Satou, T. Kinase, K. Ninomiya, and A. Shinohara (2017), Use of a size-resolved 1-D resuspension scheme to evaluate resuspended radioactive material associated with mineral dust particles from the ground surface, Journal of Environmental Radioactivity, 166, 436-448, doi: 10.1016/j.jenvrad.2015.12.023.
  29. Maeda, K., S. Toyoda, L. Philippot, S. Hattori, K. Nakajima, Y. Ito, and N. Yoshida (2017), Relative contribution of nirK- and nirS- bacterial denitrifiers as well as fungal denitrifiers to nitrous oxide production from dairy manure compost, Environmental Science & Technology, 51, 14083?14091, doi: 10.1021/acs.est.7b04017.
  30. Thuan, N. C., K. Koba, M. Yano, A. Makabe, C. T. Kinh, A. Terada, S. Toyoda, N. Yoshida, Y. Tanaka, M. Katsuyama, and M. Yoh (2017), N2O production by denitrification in an urban river: evidence from isotopes, functional genes, and dissolved organic matter, Limnology, 19, 115-126.
  31. Ali, M., R. M. L. D. Rathnayake, L. Zhang, S. Ishii, T. Kindaichi, H. Satoh, S. Toyoda, N. Yoshida, and S. Okabe (2016), Source identification of nitrous oxide emission pathways from a single-stage nitritation-anammox granular reactor, Water Research, 102, 147-157, doi: 10.1016/j.watres.2016.06.034.
  32. Hattori, S., J. Savarino, K. Kamezaki, S. Ishino, J. Dyckmans, T. Fujinawa, N. Caillon, A. Barbero, A. Mukotaka, S. Toyoda, R. Well, and N. Yoshida (2016), Atuomated system measuring triple oxygen and nitrogen isotope ratios in nitrate using the bacterial method and N2O decomposition by microwave discharge, Rapid Commun. Mass Spectrom., 30, 2635-2644, doi: 10.1002/rcm.7747.
  33. Mohn, J., W. Gutjahr, S. Toyoda, E. Harris, E. Ibraim, H. Geilmann, P. Schleppi, T. Kuhn, M. F. Lehmann, C. Decock, R. A. Werner, N. Yoshida, and W. A. Brand (2016), Reassessment of the NH4NO3 thermal decomposition technique for calibration of the N2O isotopic composition, Rapid Commun. Mass Spectrom., 30, 2487-2496, doi: 10.1002/rcm.7736.
  34. Toyoda, S., and N. Yoshida (2016), Development of automated preparation system for isotopocule analysis of N2O in various air samples, Atmos. Meas. Tech., 9, 2093-2101, doi: 10.5194/amt-9-2093-2016.
  35. Tumendelger, A., S. Toyoda, N. Yoshida, H. Shiomi, and R. Kouno (2016), Isotopocule characterization of N2O dynamics during simulated wastewater treatment under oxic and anoxic conditions, Geochem. J., 50, 105-121, doi: 10.2343/geochemj.2.0390.
  36. Wenk, C. B., C. H. Frame, K. Koba, K. L. Casciotti, M. Veronesi, H. Niemann, C. J. Schubert, N. Yoshida, S. Toyoda, A. Makabe, J. Zopfi, and M. F. Lehmann (2016), Differential N2O dynamics in two oxygen-deficient lake basins revealed by stable isotope and isotopomer distributions, Limnology and Oceanography, 61, 1735-1749, doi: 10.1002/lno.10329.
  37. Zou, Y., Y. Hirono, Y. Yanai, S. Hattori, S. Toyoda, and N. Yoshida (2015), Rainwater, soil water, and soil nitrate effects on oxygen isotope ratios of nitrous oxide produced in a green tea (Camellia sinensis) field in Japan, Rapid Commun. Mass Spectrom., 29(9), 891-900, doi: 10.1002/rcm.7176.
  38. Hattori, S., A. Toyoda, S. Toyoda, S. Ishino, Y. Ueno, and N. Yoshida (2015), Determination of the Sulfur Isotope Ratio in Carbonyl Sulfide Using Gas Chromatography/Isotope Ratio Mass Spectrometry on Fragment Ions 32S+, 33S+, and 34S+, Analytical Chemistry, 87(1), 477-484, doi:10.1021/ac502704d.
  39. Tumendelger, A., S. Toyoda, and N. Yoshida (2014), Isotopic analysis of N2O produced in a conventional wastewater treatment system operated under different aeration conditions, Rapid Communications in Mass Spectrometry, 28(17), 1883-1892, doi:10.1002/rcm.6973.
  40. Yamazaki, T., T. Hozuki, K. Arai, S. Toyoda, K. Koba, T. Fujiwara, and N. Yoshida (2014), Isotopomeric characterization of nitrous oxide produced by reaction of enzymes extracted from nitrifying and denitrifying bacteria, Biogeosciences, 11, 2679-2689, doi:10.5194/bg-11-2679-2014.
  41. Yano, M., S. Toyoda, T. Tokida, K. Hayashi, T. Hasegawa, A. Makabe, K. Koba, and N. Yoshida (2014), Isotopomer analysis of production, consumption and soil-to-atmosphere emission processes of N2O at the beginning of paddy field irrigation, Soil Biology and Biochemistry, 70, 66-78, doi:10.1016/j.soilbio.2013.11.026.
  42. Yoshikawa, C., E. Hayashi, K. Yamada, O. Yoshida, S. Toyoda, and N. Yoshida (2014), Methane sources and sinks in the subtropical South Pacific along 17°S as traced by stable isotope ratios, Chemical Geology, 382(0), 24-31, doi:10.1016/j.chemgeo.2014.05.024.
  43. Zou, Y., Y. Hirono, Y. Yanai, S. Hattori, S. Toyoda, and N. Yoshida (2014), Isotopomer analysis of nitrous oxide accumulated in soil cultivated with tea (Camellia sinensis) in Shizuoka, central Japan, Soil Biology and Biochemistry, 77(0), 276-291, doi:http://dx.doi.org/10.1016/j.soilbio.2014.06.016.
  44. Mohn, J., et al. (2014), Interlaboratory assessment of nitrous oxide isotopomer analysis by isotope ratio mass spectrometry and laser spectroscopy: current status and perspectives, Rapid Communications in Mass Spectrometry, 28(18), 1995-2007, doi:10.1002/rcm.6982.
  45. Ishii, S., Y. Song, L. Rathnayake, A. Tumendelger, H. Satoh, S. Toyoda, N. Yoshida, and S. Okabe (2014), Identification of key nitrous oxide production pathways in aerobic partial nitrifying granules, Environmental Microbiology, 16(10), 3168-3180, doi:10.1111/1462-2920.12458.
  46. Toyoda, S., N. Kuroki, N. Yoshida, K. Ishijima, Y. Tohjima, and T. Machida (2013), Decadal time series of tropospheric abundance of N2O isotopomers and isotopologues in the Northern Hemisphere obtained by the long-term observation at Hateruma Island, Japan, Journal of Geophysical Research, 118, 3369-3381, doi:10.1002/jgrd.50221.
  47. Fujii, A., S. Toyoda, O. Yoshida, S. Watanabe, K. i. Sasaki, and N. Yoshida (2013), Distribution of nitrous oxide dissolved in water masses in the eastern subtropical North Pacific and its origin inferred from isotopomer analysis, Journal of Oceanography, 69(2), 147-157, doi:10.1007/s10872-012-0162-4.
  48. Kato, T., S. Toyoda, N. Yoshida, Y. Tang, and E. Wada (2013), Isotopomer and isotopologue signatures of N2O produced in alpine ecosystems on the Qinghai-Tibetan Plateau, Rapid Commun. Mass Spectrom., 27, 1517-1526, doi:10.1002/rcm.6595.
  49. Koba, K., et al. (2012), The 15N natural abundance of the N lost from an N-saturated subtropical forest in southern China, Journal of Geophysical Research, 117, G02015, doi:10.1029/2010JG001615.
  50. Maeda, K., D. Hanajima, R. Morikawa, S. Toyoda, N. Yoshida, and T. Osada (2013), Mitigation of greenhouse gas emission from the cattle manure composting process by use of a bulking agent, Soil Science and Plant Nutrition, doi:10.1080/00380768.2012.733868.
  51. Maeda, K., S. Toyoda, D. Hanajima, and N. Yoshida (2013), Denitrifiers in the surface zone are primarily responsible for the nitrous oxide emission of dairy manure compost, Journal of Hazardous Materials, 248-249, doi:10.1016/j.jhazmat.2013.01.041.
  52. Mukotaka, A., S. Toyoda, N. Yoshida, and R. Well (2013), On-line triple oxygen isotope analysis of nitrous oxide using decomposition by microwave discharge, Rapid Commun. Mass Spectrom., 27(21), 2391-2398, doi:10.1002/rcm.6698.
  53. Priyadarshi, A., et al. (2013), Detection of radioactive 35S at Fukushima and other Japanese sites, J. Geophys. Res., 118, 1020-1027, doi:10.1029/2012JD018485.
  54. Rathnayake, R. M. L. D., Y. Song, A. Tumendelger, M. Oshiki, S. Ishii, H. Satoh, S. Toyoda, N. Yoshida, and S. Okabe (2013), Source identification of nitrous oxide on autotrophic partial nitrification in a granular sludge reactor, Water Research, 47(19), 7078-7086, doi:http://dx.doi.org/10.1016/j.watres.2013.07.055.
  55. Mohn, J., B. Tuzson, A. Manninen, N. Yoshida, S. Toyoda, W. A. Brand, and L. Emmenegger (2012), Site selective real-time measurements of atmospheric N2O isotopomers by laser spectroscopy, Atmos. Meas. Tech., 5, 1601-1609, doi:10.5194/amt-5-1601-2012.
  56. Sasaki, Y., K. Koba, M. Yamamoto, A. Makabe, Y. Ueno, M. Nakagawa, S. Toyoda, N. Yoshida, and M. Yoh (2011), Biogeochemistry of nitrous oxide in Lake Kizaki, Japan, elucidated by nitrous oxide isotopomer analysis, Journal of Geophysical Research 116(G04030), doi:10.1029/2010JG001589.
  57. Hattori, S., Danielache, S. O., Johnson, M. S., Schmidt, J. A., Kjaergaard, H. G., Toyoda, S., Ueno, Y., and Yoshida, N.(2011), Ultraviolet absorption cross sections of carbonyl sulfide isotopologues OC32S, OC33S, OC34S and O13CS: isotopic fractionation in photolysis and atmospheric implications, Atmos. Chem. Phys., 11, 10293-10303, doi:10.5194/acp-11-10293-2011.
  58. Toyoda, S., et al. (2011), Characterization and production and consumption processes of N2O emitted from temperate agricultural soils determined via isotopomer ratio analysis, Global Biogeochem. Cycles, 25, GB2008, doi:10.1029/2009GB003769.
  59. Toyoda, S., Y. Suzuki, S. Hattori, K. Yamada, A. Fujii, N. Yoshida, R. Kouno, K. Murayama, and H. Shiomi (2011), Isotopomer analysis of production and consumption mechanisms of N2O and CH4 in an advanced wastewater treatment system, Environmental Science and Technology, 45, 917-922, doi:10.1021/es102985u.
  60. Maeda, K., D. Hanajima, S. Toyoda, N. Yoshida, R. Morioka, and T. Osada (2011), Microbiology of nitrogen cycle in animal manure compost, Microbial Biotechnology, 4(6), 700-709, doi:10.1111/j.1751-7915.2010.00236.x.
  61. Tobari, Y., K. Koba, K. Fukushima, N. Tokuchi, N. Ohte, R. Tateno, S. Toyoda, T. Yoshioka, and N. Yoshida (2010), Contribution of atmospheric nitrate to stream-water nitrate in Japanese coniferous forests revealed by the oxygen isotope ratio of nitrate, Rapid Commun. Mass Spectrom., 24, 1-6.
  62. Mohn, J., C. Guggenheim, B. Tuzson, M. K. Vollmer, S. Toyoda, N. Yoshida, and L. Emmenegger (2010), A liquid nitrogen-free preconcentration unit for measurements of ambient N2O isotopomers by QCLAS, Atmospheric Measurement Techniques, 3, 609-618, doi:10.5194/amt-3-609-2010.
  63. Maeda, K., S. Toyoda, R. Shimojima, T. Osada, D. Hanajima, R. Morioka, and N. Yoshida (2010), The source of nitrous oxide emission from cattle manure composting process revealed by isotopomer analysis of and amoA abundance in beta-proteobacterial ammonia-oxidizing bacteria., Appl. Environ. Microbiol., 76(5), 1555-1562.
  64. Toyoda, S., H. Iwai, K. Koba, and N. Yoshida (2009), Isotopomeric analysis of N2O dissolved in a river in the Tokyo metropolitan area, Rapid Communications in Mass Spectrometry, 23, 809-821.
  65. Koba, K., et al. (2009), Biogeochemistry of nitrous oxide in groundwater in a forested ecosystem elucidated by nitrous oxide isotopomer measurements, Geochimica et Cosmochimica Acta, 73, 3115-3133.
  66. Toyoda, S., S. Yamamoto, S. Arai, H. Nara, N. Yoshida, K. Kashiwakura, and K. Akiyama (2008), Isotopomeric characterization of N2O produced, consumed, and emitted by automobiles, Rapid Commun. Mass Spectrom., 22(5), 603-612.
  67. Yamagishi, H., M. B. Westley, B. N. Popp, S. Toyoda, N. Yoshida, S. Watanabe, K. Koba, and Y. Yamanaka (2007), Role of nitrification and denitrification on the nitrous oxide cycle in the eastern tropical North Pacific and Gulf of California, J. Geophys. Res., 112, G02015.
  68. Nara, H., S. Toyoda, and N. Yoshida (2007), Measurements of stable carbon isotopic composition of ethane and propane over the western North Pacific and eastern Indian Ocean: A usefule indicator of atmospheric transport process, Journal of Atmospheric Chemistry, 56(3), 293-314.
  69. Yamagishi, H., N. Yoshida, S. Toyoda, B. N. Popp, M. B. Westely, and S. Watanabe (2005), Contributions of denitrification and mixing on the distribution of nitrous oxide in the North Pacific, Geophys. Res. Lett., 32, L04603.
  70. Well, R., H. Flessa, F. Jaradat, S. Toyoda, and N. Yoshida (2005), Measurement of isotopomer signatures of N2O in groundwater, Journal of Geophysical Research-Biogeosciences, 110(G2), G02006.
  71. Toyoda, S., H. Mutobe, H. Yamagishi, N. Yoshida, and Y. Tanji (2005), Fractionation of N2O isotopomers during production by denitrifier, Soil Biol. Biochem., 37(8), 1535-1545.
  72. Toyoda, S., et al. (2004), Temporal and latitudinal distributions of stratospheric N2O isotopomers, J. Geophys. Res., 109, D08308.
  73. Bol, R., S. Toyoda, S. Yamulki, J. M. B. Hawkins, L. M. Cardenas, and N. Yoshida (2003), Dual isotope and isotopomer ratios of N2O emitted from a temperate grassland soil after fertiliser application, Rapid Commun. Mass Spectrom., 17, 2550-2556.
  74. Uehara, K., K. Yamamoto, T. Kikugawa, S. Toyoda, K. Tsuji, and N. Yoshida (2002), Precise isotope abundance ratio measurement of nitrous oxide using diode lasers, Sens. Actuators, B90, 250-255.
  75. Toyoda, S., N. Yoshida, T. Miwa, Y. Matsui, H. Yamagishi, U. Tsunogai, Y. Nojiri, and N. Tsurushima (2002), Production mechanism and global budget of N2O inferred from its isotopomers in the western North Pacific, Geophys. Res. Lett., 29 No.3, 7-1-7-4.
  76. Sowers, T., A. Rodebaugh, N. Yoshida, and S. Toyoda (2002), Extending records of the isotopic composition of the atmospheric N2O back to 1800 A.D. from air trapped in snow at the South Pole and the Greenland Ice Sheet Project II ice core, Global Biogeochem. Cycles, 16(4), 1129.
  77. Popp, B. N., et al. (2002), Nitrogen and oxygen isotopomeric constraints on the origins and sea-to-air flux of N2O in the oligotrophic subtropical North Pacific gyre, Global Biogeochem. Cycles, 16(4), 1064.
  78. Nakazawa, et al. (2002), Variations of stratospheric trace gases measured using a balloon-borne cryogenic sampler, Adv. Space Res., 30(5), 1349-1357.
  79. Yamulki, S., S. Toyoda, N. Yoshida, E. Veldkamp, B. Grant, and R. Bol (2001), Diurnal fluxes and the isotopomer ratios of N2O in a temperate grassland following urine amendment, Rapid Commun. Mass Spectrom., 15, 1263-1269.
  80. Toyoda, S., N. Yoshida, T. Urabe, S. Aoki, T. Nakazawa, S. Sugawara, and H. Honda (2001), Fractionation of N2O isotopomers in the stratosphere, J. Geophys. Res., 106, 7515-7522.
  81. Yoshida, N., and S. Toyoda (2000), Constraining the atmospheric N2O budget from intramolecular site preference in N2O isotopomers, Nature, 405, 330-334.
  82. Toyoda, S., and N. Yoshida (1999), Determination of nitrogen isotopomers of nitrous oxide on a modified isotope ratio mass spectrometer, Anal. Chem., 71, 4711-4718.
  83. Toyoda, S., T. Tominaga, and Y. Makide (1998), Cryogen-free automated gas chromatograph system for monitoring of halocarbons in the atmosphere at background concentration levels, Analytical Sciences, 14, 917-923.
  84. Toyoda, S., T. Tominaga, and Y. Makide (1997), Monitoring of Atmospheric Concentration of Chlorodifluoromethane (HCFC-22) by Automated GC/O2-doped-ECD, Chem. Lett., 1997, 95-96.
  85. Takahashi, Y., Y. Minai, Y. Meguro, S. Toyoda, and T. Tominaga (1994), Ionic strength and pH dependence of binding constants of Am (III) and Eu (III) -humates, Journal of Radioanalytical and Nuclear Chemistry Letters, 186(2), 129-141.

論文(査読なし）

  1. 豊田　栄、吉田　尚弘、占部　太一郎、青木　周司、中澤　高清、菅原　敏、本田　秀之、「三陸上空の成層圏におけるN2Oアイソトポマーの高度分布」、宇宙科学研究所報告、41, 73-80 (2001).
  2. Sugawara, S., S. Toyoda, S. Ishidoya, S. Morimoto, S. Aoki, T. Nakazawa, and T. Yamanouchi (2010), Stratospheric Greenhouse Gas Observation Using a Balloon-borne Cryogenic Sampler at Syowa Station, Antarctica, Nankyoku shiryo (Antarctic Record), written in Japanese with English abstract, 54(Special Issue), 410-425.

著書・解説・総説

  1. 豊田　栄, 安定同位体比による土壌生態系N2Oの循環解析, アグリバイオ, 7(12), 1031-1035.(2023)
  2. 豊田　栄, 安定同位体比を用いた陸域生態系におけるN2O放出と吸収の解明, 大気化学研究, 43, 043A003 (2020).
  3. Toyoda, S., N. Yoshida, and K. Koba (2017), Isotopocule analysis of biologically produced nitrous oxide in various environments, Mass Spectrometry Reviews, Volume 36(2), 135-160, doi: 10.1002/mas.21459.
  4. 豊田　栄, 生元素安定同位体比分析のための試料前処理方法, ぶんせき, 2013(11), 648-654 (2013).
  5. 向高　新, 豊田　栄, 吉田　尚弘, マイクロ波放電分解法による硝酸塩の酸素同位体測定法の開発, 化学工業, 2013(7) , 539-543 (2013)
  6. 豊田　栄, アイソトポマーから地球環境をさぐる, 化学と教育, 53(12), 684-685 (2005).
  7. S. Toyoda and N. Yoshida, Site-specific nitrogen isotope analysis in N2O by mass spectrometry, in Handbook of stable isotope analytical techniques, Volume-I, P.A. de Groot (ed.), Elsevier, 390-399 (2004).
  8. O. Abe, S. Toyoda, K. Yamada, N. Kurita, S. Hashimoto, R. Uemura, and N. Yoshida,　Methods of sampling, measurements and data acquisition for hydrogen and oxygen isotopic composition in rainwater, in Hydrogen and oxygen isotopes in hydrology (The textbook for the eleventh IHP training course in 2001),　N. Yoshida (ed.),　Hydrospheric Atmospheric Research Center, Nagoya University, United Nations Educational Scientific and Cultural Organization, 237-264 (2002).
  9. 吉田 尚弘 編・訳、角皆 潤、豊田 栄、河村 圭美 共訳、「地球環境の未来をさぐる――水・物質サイクルの変動と変化」、丸善ポップサイエンス (1998).