| Automated determination of iron in seawater by chelating resin concentration and chemiluminescence detection H Obata, H Karatani, E Nakayama Analytical Chemistry 65 (11), 1524-1528, 1993 | 500 | 1993 |
| The GEOTRACES intermediate data product 2017 R Schlitzer, RF Anderson, EM Dodas, M Lohan, W Geibert, A Tagliabue, ... Chemical Geology 493, 210-223, 2018 | 290 | 2018 |
| Sampling and sample-handling protocols for GEOTRACES cruises G Cutter, P Andersson, L Codispoti, P Croot, R Francois, MC Lohan, ... Geotraces, 2010 | 246 | 2010 |
| Developing standards for dissolved iron in seawater KS Johnson, V Elrod, S Fitzwater, J Plant, E Boyle, B Bergquist, K Bruland, ... Eos, Transactions American Geophysical Union 88 (11), 131-132, 2007 | 242 | 2007 |
| Evidence of an extensive spread of hydrothermal dissolved iron in the Indian Ocean J Nishioka, H Obata, D Tsumune Earth and Planetary Science Letters 361, 26-33, 2013 | 154 | 2013 |
| The GEOTRACES intermediate data product 2014 E Mawji, R Schlitzer, EM Dodas, C Abadie, W Abouchami, RF Anderson, ... Marine Chemistry 177, 1-8, 2015 | 140 | 2015 |
| Fundamental studies for chemical speciation of iron in seawater with an improved analytical method H Obata, H Karatani, M Matsui, E Nakayama Marine Chemistry 56 (1-2), 97-106, 1997 | 139 | 1997 |
| Hydrothermal fluid geochemistry at the Iheya North field in the mid-Okinawa Trough: Implication for origin of methane in subseafloor fluid circulation systems S Kawagucci, H Chiba, J Ishibashi, T Yamanaka, T Toki, Y Muramatsu, ... Geochemical Journal 45 (2), 109-124, 2011 | 138 | 2011 |
| Colorimetric detection of mercury (II) ion in aqueous solution using silver nanoparticles ML Firdaus, I Fitriani, S Wyantuti, YW Hartati, R Khaydarov, JA Mcalister, ... Analytical Sciences 33 (7), 831-837, 2017 | 137 | 2017 |
| Determination of picomolar levels of iron in seawater using catalytic cathodic stripping voltammetry H Obata, CMG van den Berg Analytical Chemistry 73 (11), 2522-2528, 2001 | 132 | 2001 |
| Determination of trace elements in seawater by fluorinated metal alkoxide glass-immobilized 8-hydroxyquinoline concentration and high-resolution inductively coupled plasma mass … Y Sohrin, S Iwamoto, S Akiyama, T Fujita, T Kugii, H Obata, E Nakayama, ... Analytica Chimica Acta 363 (1), 11-19, 1998 | 127 | 1998 |
| Anthropogenic lead emissions in the ocean: The evolving global experiment EA Boyle, JM Lee, Y Echegoyen, A Noble, S Moos, G Carrasco, N Zhao, ... Oceanography 27 (1), 69-75, 2014 | 117 | 2014 |
| Evidence for the grazing hypothesis: Grazing reduces phytoplankton responses of the HNLC ecosystem to iron enrichment in the western subarctic pacific (SEEDS II) A Tsuda, S Takeda, H Saito, J Nishioka, I Kudo, Y Nojiri, K Suzuki, ... Journal of Oceanography 63, 983-994, 2007 | 102 | 2007 |
| Eastߞwest gradients in the photosynthetic potential of phytoplankton and iron concentration in the subarctic Pacific Ocean during early summer K Suzuki, H Liu, T Saino, H Obata, M Takano, K Okamura, Y Sohrin, ... Limnology and Oceanography 47 (6), 1581-1594, 2002 | 88 | 2002 |
| Response of equatorial Pacific phytoplankton to subnanomolar Fe enrichment S Takeda, H Obata Marine Chemistry 50 (1-4), 219-227, 1995 | 87 | 1995 |
| The distribution of Fe in the Australian sector of the Southern Ocean Y Sohrin, S Iwamoto, M Matsui, H Obata, E Nakayama, K Suzuki, ... Deep Sea Research Part I: Oceanographic Research Papers 47 (1), 55-84, 2000 | 84 | 2000 |
| Hydrothermal impacts on trace element and isotope ocean biogeochemistry CR German, KA Casciotti, JC Dutay, LE Heimbürger, WJ Jenkins, ... Philosophical Transactions of the Royal Society A: Mathematical, Physical …, 2016 | 83 | 2016 |
| Subpolar marginal seas fuel the North Pacific through the intermediate water at the termination of the global ocean circulation J Nishioka, H Obata, H Ogawa, K Ono, Y Yamashita, K Lee, S Takeda, ... Proceedings of the National Academy of Sciences 117 (23), 12665-12673, 2020 | 81 | 2020 |
| Geochemical origin of hydrothermal fluid methane in sediment-associated fields and its relevance to the geographical distribution of whole hydrothermal circulation S Kawagucci, Y Ueno, K Takai, T Toki, M Ito, K Inoue, A Makabe, ... Chemical Geology 339, 213-225, 2013 | 81 | 2013 |
| High-resolution measurement of multiple volatile organic compounds dissolved in seawater using equilibrator inlet–proton transfer reaction-mass spectrometry (EI–PTR-MS) S Kameyama, H Tanimoto, S Inomata, U Tsunogai, A Ooki, S Takeda, ... Marine Chemistry 122 (1-4), 59-73, 2010 | 80 | 2010 |
jun nishiokaHokkaido universityVerified email at lowtem.hokudai.ac.jp
