TEL. 011-706-4528
〒060-0810 北海道札幌市北区北10条西5丁目
Yosuke Sakamoto, Jun Zhou, Nanase Kohno, Maho Nakagawa, Jun Hirokawa, Yoshizumi
Kajii, "Kinetics study of OH uptake onto deliquesced NaCl particles
by combining laser photolysis and laser-induced fluorescence", J. Phys. Chem. Lett, 9, 4115 – 4119 (2018)
Yosuke Sakamoto, Motoki Goda, Jun Hirokawa, "Kinetics study of heterogeneous
bromine release from the reaction between gaseous ozone and aqueous bromine
solution", J. Phys. Chem. A, 122, 2723 – 2731 (2018).
Yosuke Sakamoto, Ryoji Yajima, Satoshi Inomata, and Jun Hirokawa, "Water
vapour effects on secondary organic aerosol formation in isoprene ozonolysis",
Phys. Chem. Chem. Phys., 19, 3165 – 3175 (2017).
Satoshi Inomata and Jun Hirokawa, "Non-radioactive chemical ionization
mass spectrometry using acetic acid–acetate cluster as a reagent ion for
the real-time measurement of acids and hydroperoxides", Chem. Lett.,
46, 38 – 41 (2017).
M. Nakayama, C. Zhu, J. Hirokawa, T. Irino, and H. Yoshikawa-Inoue, "Ozone
depletion in the interstitial air of the seasonal snowpack in northern
Japan", TellusB, 67, 24934 (2015).
S. Inomata, K. Sato, J. Hirokawa, Y. Sakamoto, H. Tanimoto, M. Okumura,
S. Tohno, and T. Imamura, "Analysis of secondary organic aerosols
from ozonolysis of isoprene by proton transfer reaction mass spectrometry",
Atmos. Environ., 97, 397 – 405 (2014).
Y. Sakamoto, S. Inomata, and J. Hirokawa, "Oligomerization reaction
of the Criegee intermediate leads to secondary organic aerosol formation
in ethylene ozonolysis", J. Phys. Chem. A, 117, 12912 – 12921 (2013).
G. A. Morris, G. Labow, H. Akimoto, M.
Takigawa, M. Fujiwara, F. Hasebe, J. Hirokawa, and T. Koide, "On the use
of the correction factor with Japanese ozonesonde data", Atmos. Chem. Phys., 13, 1243 – 1260 (2013).
G. A. Morris, W. D. Komhyr, J. Hirokawa, J.
Flynn, B. Lefer, N. Krotkov, and F. Ngan, “A balloon sounding technique for
measuring SO2 plumes”, J.
Atmos. Oceanic Technol., 27, 1318 – 1330 (2010).
J. Hirokawa, T. Kato, and F. Mafuné, “In
situ measurements of atmospheric nitrous acid by chemical ionization mass
spectrometry using chloride ion transfer reactions”, Anal. Chem. 81,
8380 – 8386 (2009).
J. Hirokawa, T. Kato, and F. Mafuné, “Uptake
of gas-phase nitrous acid by pH-controlled aqueous solution studied by a wetted
wall flow tube”, J. Phys. Chem. A, 112, 12143 – 12150 (2008).
H. Tanimoto, N. Aoki, S. Inomata, J.
Hirokawa, and Y. Sadanaga, “Development of a PTR-TOFMS instrument for real-time
measurements of volatile organic compounds in air”, Int. J. Mass Spectrom., 263,
1 – 11 (2007).
K. Kita, Y. Morino, Y. Kondo, Y. Komazaki,
N. Takegawa, Y. Miyazaki, J. Hirokawa, S. Tanaka, T. L. Thomspon, R. S. Gao,
and D. W. Fahey, “A chemical ionization mass spectrometer for gournd-based
measurements of nitric acid”, J. Atmos.
Oceanic Technol., 23, 1104 –
1113 (2006).
S. Kato, Y. Kajii, R. Itokazu, J. Hirokawa,
S. Koda, and Y. Kinjo, “Transport of atmospheric carbon monoxide, ozone, and
hydrocarbons from Chinese coast to Okinawa island in the Western Pacific during
winter”, Atmos. Environ., 38, 2975 – 2981 (2004).
Y.
Sadanaga, J. Hirokawa, and H. Akimoto, “Formation of molecular chlorine in dark
condition: Heterogeneous reaction of ozone with sea salt in the presence of
ferric ion”, Geophys. Res. Lett., 28, 4433 – 4436 (2001).
J.
Matsumoto, J. Hirokawa, H. Akimoto, and Y. Kajii, “Direct measurement of
NO2 in the marine atmosphere by laser-induced fluorescence technique”,
Atmos. Environ., 35, 2803 – 2814 (2001).
Y. Kanaya, Y. Sadanaga, J. Hirokawa, Y.
Kajii, and H. Akimoto, “Development of a ground-based LIF instrument for
measuring HOx radicals: Instrumentation and calibrations”, J. Atmos. Chem.,
38, 73 – 110 (2001).
M. Mochida, J. Hirokawa, and H. Akimoto, “Unexpected
large uptake of O3 on sea salts and the observed Br2
formation”, Geophys. Res. Lett., 27, 2629 – 2632 (2000).
H. Tanimoto, J. Hirokawa, Y. Kajii, and H.
Akimoto, “A new measurement technique of peroxyacetyl nitrate at parts per
trillion by volume levels: Gas chromatography / negative ion chemical
ionization mass spectrometry”, J. Geophys. Res., 104, 21343 –
21354 (1999).
P. Pochanart, J. Hirokawa, Y. Kajii, H.
Akimoto, and M. Nakao, “Influence of regional-scale anthropogenic activity in
northeast Asia on seasonal variations of surface ozone and carbon monoxide
observed at Oki, Japan”, J. Geophys. Res., 104, 3621 – 3631
(1999).
M. Mochida, J. Hirokawa, Y. Kajii, and H.
Akimoto, “Heterogeneous reactions of Cl2 with sea salts at ambient
temperature: Implications for halogen exchange in the atmosphere”, Geophys.
Res. Lett., 25, 3927 – 3930 (1998).
J. Hirokawa, K. Onaka, Y. Kajii, and H.
Akimoto, “Heterogeneous processes involving sodium halide particles and ozone:
Molecular bromine release in the marine boundary layer in the absence of
nitrogen oxides”, Geophys. Res. Lett., 25, 2449 – 2452 (1998).
「オゾン層破壊の科学」北海道大学大学院環境科学院編,北海道大学出版会,2007.(共著)
「みんなが知りたいPM2.5の疑問25」日本エアロゾル学会 畠山史郎・三浦和彦編著,成山堂書店,2014.(共著)
「基礎の化学」田中俊逸,神谷裕一,廣川淳,中村博 著, 三共出版, 2015. (共著)
〒060-0810
北海道札幌市北区北10条西5丁目
TEL 011-706-4528
FAX 011-706-4528