A method was developed for the determination of 129I in soil samples that uses an ICP-MS equipped with an octopole reaction system. Oxygen was used as the reaction gas for reducing the background intensity of m/z 129, principally by 129Xe+. The co...
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 28(8) 1283-1287 2013年 [査読有り]
A method was developed for the determination of I-129 in soil samples using a Triple Quadrupole ICP-MS, with the objective of investigating radioiodine released by the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident. The determination of I-...
Takeshi Ohno   Yasuyuki Muramatsu   Yoshinori Miura   Kazumasa Oda   Naoya Inagawa   Hiromu Ogawa   Atsuko Yamazaki   Chiaki Toyama   Mutsuto Sato   
GEOCHEMICAL JOURNAL 46(4) 287-295 2012年 [査読有り]
In order to understand the behavior of radionuclides released from the Fukushima Daiichi nuclear power plant, the depth distributions of radiocesium and radioiodine were investigated in a wheat field, a rice paddy, an orchard, and a cedar forest i...
PRECAMBRIAN RESEARCH 179(1-4) 150-164 2010年5月 [査読有り]
The Neoproterozoic-Cambrian Dalradian Supergroup of Scotland contains three glaciogenic sedimentary units, the Port Askaig Formation, the Stralinchy-Reelan Formation, and the Loch na Cille Boulder Bed, in ascending order. Although the idea, that r...
Hiroyuki Matsuzaki   Yasuyuki Muramatsu   Takeshi Ohno   Wei Mao   
EPJ Web of Conferences 153 2017年9月
Iodine-131 distribution released from the Fukushima Dai-ichi Nuclear Power Plant accident was reconstructed through the iodine-129 measurements. From nearly 1,000 surface soil samples iodine was extracted by the pyro hydrolysis method. Extracted i...