Y
Yoshifumi Akama
Researcher at Meisei University
Publications - 50
Citations - 1260
Yoshifumi Akama is an academic researcher from Meisei University. The author has contributed to research in topics: Pyrazolone & Aqueous solution. The author has an hindex of 20, co-authored 50 publications receiving 1208 citations.
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Journal ArticleDOI
Adsorption of chromium (VI) from aqueous solutions by cellulose modified with β-CD and quaternary ammonium groups
TL;DR: Cellulose powder was grafted with the vinyl monomer glycidyl methacrylate using ceric ammonium nitrate as initiator and was further derived with β-CD and quaternary ammonium groups to build Cell-g-GMA-β-CDN(+) adsorbent.
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Extraction mechanism of Cr(VI) on the aqueous two-phase system of tetrabutylammonium bromide and (NH4)2SO4 mixture
Yoshifumi Akama,Ahat Sali +1 more
TL;DR: The Cr(VI) is found to be extracted into the TBAB-rich upper phase due to ion pair formation such as HCrO(4)(-) .
Journal ArticleDOI
Melatonin, a pineal secretory product with antioxidant properties, protects against cisplatin-induced nephrotoxicity in rats.
Masayuki Hara,Minoru Yoshida,Hironori Nishijima,Makoto Yokosuka,Masayuki Iigo,Ritsuko Ohtani-Kaneko,Akinori Shimada,Tatsuya Hasegawa,Yoshifumi Akama,Kazuaki Hirata +9 more
TL;DR: It is concluded that administration of CP imposes a severe oxidative stress to renal tissue and melatonin confers protection against the oxidative damage associated with CP.
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Pre-concentration of copper, cobalt and nickel with 3-methyl-1-phenyl-4-stearoyl-5-pyrazolone loaded on silica gel
TL;DR: In this article, 3-Methyl-1-phenyl-4-stearoyl-5-pyrazolone loaded on to silica gel was used as a pre-concentration reagent for copper, cobalt and nickel prior to atomic absorption spectrometric determination.
Journal ArticleDOI
Selective separation of cadmium from cobalt, copper, iron (III) and zinc by water-based two-phase system of tetrabutylammonium bromide.
TL;DR: The results showed that Cd( 2+) is selectively extracted into the upper phase in the pH ranges 1.0-9.0, while Co(2+) Cu(2%) and Fe(3+) ions were little extracted and Zinc ion was extracted to upper phase by about 24%, but it did not interfere the extraction of Cd (2+).