Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Hayao SAKAMOTO"'
Autor:
Munetomo Nedachi, Masahiko Yamamoto, Hayao Sakamoto, Tetsuo Ando, Takashi Tomiyasu, Tomomi Eguchi, Katsuro Anazawa, Katsumi Marumo
Publikováno v:
Marine Chemistry. 107:173-183
To estimate the influence of mercury emitted from submarine fumaroles, the horizontal and vertical distribution of mercury in sediment of Kagoshima Bay was studied. The fumaroles are located in the northern bay head area, and the sediment samples had
Publikováno v:
Hydrogeology Journal. 15:409-417
River, rain and spring water samples from a region covered in “Shirasu” ignimbrite were collected on Kyushu Island, Japan. The analytical results were subjected to multivariate statistical analysis and stoichiometric calculation to understand the
Publikováno v:
GEOCHEMICAL JOURNAL. 40:253-263
The atmospheric concentration of mercury was determined daily for 3 years (July 1999-March 2002) in Kagoshima City to clarify the seasonal variation of mercury levels and the influence of mercury emitted from Sakurajima. The atmospheric mercury was c
Publikováno v:
BUNSEKI KAGAKU. 55:815-819
Considering the significance of possible future problems regarding water quality, it becomes important to obtain accurate and precise data on environmental water samples. For any uses of chemical data in water samples, it is important that measured d
Autor:
Jeneper M. Lo, Hayao Sakamoto
Publikováno v:
Journal of the Sedimentological Society of Japan. 62:31-41
Publikováno v:
Analytical Sciences. 20:79-84
River water and sediment samples were collected at the same site in a vicinity of an abandoned mine, and the concentrations of major elements and heavy metals were determined. The chemical correlations were observed by principal component analysis (P
Publikováno v:
Science of The Total Environment. 304:221-230
In an effort to estimate the influence of mercury emitted from Sakurajima Volcano, Southern Kyushu, Japan, on the accumulation of mercury in soil, the vertical distribution of total mercury in soils was investigated together with organic matter conte
Publikováno v:
BUNSEKI KAGAKU. 52:887-890
The adsorption of mercury(II) from aqueous solutions on green tea leaves, coffee beans and activated carbons has been studied comparatively. The adsorption capacity of those adsorbents was little affected by pH and EDTA. The coffee beans and the acti
Publikováno v:
Science of The Total Environment. 259:231-237
Vapor phase mercury concentration was determined daily for 1 year (Jan. 1996-Jan. 1997) in order to present the levels of atmospheric mercury in Kagoshima City and to estimate the influence of mercury emission from Sakurajima Volcano, southern Kyushu
Publikováno v:
Analytical Sciences. 15:277-281
A flow injection analysis method is proposed for the spectrophotometric determination of trace amounts of iodide based on its catalytic effect on the oxidation of 4, 4′-bis(dimethylamino)diphenylmethane (tetrabase) by Chloramine T in a weakly acidi