Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Shigeto Nakabayashi"'
Autor:
Mamiko Mochizuki, Sei-Ichi Saitoh, Kohsei Sasaoka, Masashi Kusakabe, Kenshi Kuma, Naonobu Shiga, Shigeto Nakabayashi
Publikováno v:
Limnology and Oceanography. 47:885-892
Vertical distributions of Fe(III) hydroxide solubilities (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf71c56d11e962b0ed092a807c77638a
https://doi.org/10.4319/lo.2002.47.3.0885
https://doi.org/10.4319/lo.2002.47.3.0885
Publikováno v:
Geophysical Research Letters. 28:4611-4614
Detailed vertical distributions of Fe(III) hydroxide solubilities and dissolved Fe concentrations, which are strongly related to the concentration and affinity of natural organic Fe(III) chelators in seawater, were measured at three typical stations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc9e7cfd576e7f130edb90ad9ffd501b
https://doi.org/10.1029/2001gl013591
https://doi.org/10.1029/2001gl013591
Publikováno v:
Marine Chemistry. 68:231-247
Radiocarbon of carbonate (PIC) and of organic carbon (POC) in sediment trap samples from the Okinawa trough was measured by AMS. Concentrations of 14 C in PIC and POC ( Δ 14 C -PIC and Δ 14 C -POC) ranged from approximately +40‰ to −80‰ and a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc1906724f83c9f8f0e34199bb630ed3
https://doi.org/10.1016/s0304-4203(99)00080-8
https://doi.org/10.1016/s0304-4203(99)00080-8
Publikováno v:
Water Research. 29:1559-1569
The photoreduction of Fe(III) in seawater (pH 8.1) has been investigated over a range of natural sunlight intensities at 5, 10 and 15°C in the presence of hydroxycarboxylic acid (HCA), such as sugar acids. The Fe(III) photoreduction abilities of HCA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cf7384265a8e2de4e84387061d1e401
https://doi.org/10.1016/0043-1354(94)00289-j
https://doi.org/10.1016/0043-1354(94)00289-j
Publikováno v:
Analytica Chimica Acta. 271:25-29
A liquid chromatographic (LC) method with flurescence detection was developed with sufficient sensitivity to determine organic acids in sea water and sediments. Sugar acids, except for uronic and α-keto acids, have not previously been measured in se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8665e33c54d533c58137cd7ca504b5e8
https://doi.org/10.1016/0003-2670(93)80547-x
https://doi.org/10.1016/0003-2670(93)80547-x
Publikováno v:
Marine Chemistry. 40:273-289
The distribution of manganese was investigated during a spring bloom in Funka Bay by chemically segregating dissolved, soluble and refractory Mn. The concentration of dissolved Mn changed slightly owing to assimilation by phytoplankton and dissolutio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccee090357364a73ab23b3f1ad2aeb0c
https://doi.org/10.1016/0304-4203(92)90027-8
https://doi.org/10.1016/0304-4203(92)90027-8
Publikováno v:
Marine Chemistry. 38:133-143
Dissolution rate constants and solubilities of colloidal hydrous ferric oxide in seawater over the pH range 5.5–8.1 at 20°C were experimentally determined by dialysis techniques involving γ-activity measurements of 59Fe. The Fe(III) dissolution r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f32faefda2ea9177c383ba4ce29adb58
https://doi.org/10.1016/0304-4203(92)90072-i
https://doi.org/10.1016/0304-4203(92)90072-i
Publikováno v:
Marine Chemistry. 37:15-27
Fe(III) in seawater was readily reduced to Fe(II) in sunlight in the presence of hydroxycarboxylic acids, such as sugar acids. Tartaric, gluconic, glucaric acids and glucaric acid-1,4-lactone gave higher reduced Fe(II) concentrations and a more rapid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55e0006ecbb68296377af406d6d6d8e8
https://doi.org/10.1016/0304-4203(92)90054-e
https://doi.org/10.1016/0304-4203(92)90054-e
Autor:
Kenshi Kuma, Takeshi Yoshimura, Jun Nishioka, Takeshi Nakatsuka, Humio Mitsudera, Daisuke Tsumune, Koji Suzuki, W. Keith Johnson, Tsuneo Ono, Shigeto Nakabayashi, Hiroaki Saito, Shigenobu Takeda, Atsushi Tsuda
Publikováno v:
Journal of Geophysical Research. 112
[1] Iron is an essential nutrient and plays an important role in the control of phytoplankton growth (Martin et al., 1989). Atmospheric dust has been thought to be the most important source of iron, supporting annual biological production in the west
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35abb43f5f4586e2af3488db503addc8
https://doi.org/10.1029/2006jc004055
https://doi.org/10.1029/2006jc004055
Publikováno v:
Journal of Geophysical Research. 108
[1] The vertical profiles of nutrient, AOU (apparent oxygen utilization), and Fe(III) hydroxide solubility (Fe(III) solubility) in the western North Pacific commonly show that their concentrations increased with depth below the surface mixed layer an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8277b1fb37c4c987bd8d1b5545a08ef1
https://doi.org/10.1029/2002jc001481
https://doi.org/10.1029/2002jc001481