Akio Makishima
Okayama University
Analytical chemistryGeologyNuclear chemistryIonComposite materialMass spectrometryIsotopeInductively coupled plasma mass spectrometryIsotope dilutionGeochemistryInorganic chemistryChemistryMaterials scienceMineralogySilicateSol-gelChemical engineeringChromatographyDopingAluminosilicate
188Publications
33H-index
3,764Citations
Publications 198
Newest
#1Akio MakishimaH-Index: 33
#1Akio Makishima (Okayama University)H-Index: 33
We have so far learned the present (2015–16) state of astroscience regarding the origins of the Earth, the Moon, and life in 11 chapters using an interdisciplinary approach. The oldest geological samples on the Earth exist in the core of zircons. The oldest traces of the life are chemofossil graphite inclusions in such zircons. Thus, spot analytical techniques should be refined and improved. Techniques of secondary ion mass spectrometry should be improved to obtain higher sensitivity and stabili...
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#1P. L. Tikhomirov (MSU: Moscow State University)H-Index: 12
#2Elena A. Kalinina (Okayama University)H-Index: 1
Last. Eizo Nakamura (Okayama University)H-Index: 59
view all 6 authors...
Abstract Results of a comprehensive geochemical study (major and trace elements, and isotopes of Sr, Nd, Pb, Hf) of Cretaceous volcanic rocks from the Chukotka area in northeastern Russia are presented. Synthesis of available geological and geochronological data suggests diachronous onset of activity of the Okhotsk–Chukotka volcanic belt (OCVB), the largest magmatic province in the region. The OCVB consists of ca. 10 6 km 3 of volcanic rocks. At 106–105 Ma, subduction-related magmatism initiated...
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#1Akio Makishima (Okayama University)H-Index: 33
Source
#1Akio Makishima (Okayama University)H-Index: 33
Source
#1Akio Makishima (Okayama University)H-Index: 33
Source
#1Akio Makishima (Okayama University)H-Index: 33
Source
#1Akio Makishima (Okayama University)H-Index: 33
Source
#1Akio Makishima (Okayama University)H-Index: 33
Source
#1Akio Makishima (Okayama University)H-Index: 33
A new simple and quick method has been established for separation of Cu from solutions using an extraction chromatographic resin utilizing Aliquat® 336 (commercially available as TEVA™ resin) and Cu(I). This method involves the use of a one milliliter column containing 0.33 mL TEVA™ resin on 0.67 mL Amberchrom® CG-71C acrylic resin. Copper was adsorbed on the column by forming Cu(I) with 0.15% ascorbic acid in 0.05 mol·L−1 HBr, while other major elements except Zn showed no adsorption. After rem...
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